./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-bwb/and-01-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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/termination-bwb/and-01-false.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fb97abcdacf74b7d5d4aa2facade76810ebe799b4569f70754f3cc3f1f91fdac --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 01:23:50,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 01:23:50,571 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-01-10 01:23:50,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 01:23:50,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 01:23:50,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 01:23:50,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 01:23:50,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 01:23:50,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 01:23:50,620 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 01:23:50,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 01:23:50,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 01:23:50,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 01:23:50,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 01:23:50,621 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 01:23:50,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 01:23:50,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 01:23:50,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 01:23:50,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 01:23:50,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 01:23:50,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 01:23:50,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 01:23:50,622 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 01:23:50,622 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 01:23:50,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 01:23:50,622 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 01:23:50,622 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 01:23:50,623 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 01:23:50,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:23:50,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:23:50,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:23:50,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:23:50,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 01:23:50,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:23:50,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:23:50,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:23:50,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:23:50,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 01:23:50,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 01:23:50,624 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 01:23:50,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 01:23:50,624 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 01:23:50,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 01:23:50,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 01:23:50,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 01:23:50,625 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 01:23:50,625 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 01:23:50,625 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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb97abcdacf74b7d5d4aa2facade76810ebe799b4569f70754f3cc3f1f91fdac [2025-01-10 01:23:50,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 01:23:50,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 01:23:50,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 01:23:50,847 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 01:23:50,847 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 01:23:50,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/and-01-false.c [2025-01-10 01:23:52,009 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d5fd29dac/6c5a1e3810184912bd7b680cbd7b76ea/FLAG45a751a77 [2025-01-10 01:23:52,292 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 01:23:52,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-bwb/and-01-false.c [2025-01-10 01:23:52,312 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d5fd29dac/6c5a1e3810184912bd7b680cbd7b76ea/FLAG45a751a77 [2025-01-10 01:23:52,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d5fd29dac/6c5a1e3810184912bd7b680cbd7b76ea [2025-01-10 01:23:52,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 01:23:52,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 01:23:52,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 01:23:52,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 01:23:52,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 01:23:52,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7850b508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52, skipping insertion in model container [2025-01-10 01:23:52,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 01:23:52,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:23:52,603 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 01:23:52,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:23:52,638 INFO L204 MainTranslator]: Completed translation [2025-01-10 01:23:52,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52 WrapperNode [2025-01-10 01:23:52,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 01:23:52,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 01:23:52,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 01:23:52,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 01:23:52,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,677 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2025-01-10 01:23:52,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 01:23:52,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 01:23:52,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 01:23:52,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 01:23:52,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,691 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,694 INFO L175 MemorySlicer]: No memory access in input program. [2025-01-10 01:23:52,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,698 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,703 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,705 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,710 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 01:23:52,712 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 01:23:52,712 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 01:23:52,712 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 01:23:52,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (1/1) ... [2025-01-10 01:23:52,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:23:52,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:23:52,756 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) [2025-01-10 01:23:52,759 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 [2025-01-10 01:23:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 01:23:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 01:23:52,812 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 01:23:52,814 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 01:23:52,896 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-01-10 01:23:52,896 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 01:23:52,901 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 01:23:52,902 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 01:23:52,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:23:52 BoogieIcfgContainer [2025-01-10 01:23:52,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 01:23:52,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 01:23:52,904 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 01:23:52,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 01:23:52,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:23:52" (1/3) ... [2025-01-10 01:23:52,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d079148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:23:52, skipping insertion in model container [2025-01-10 01:23:52,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:52" (2/3) ... [2025-01-10 01:23:52,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d079148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:23:52, skipping insertion in model container [2025-01-10 01:23:52,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:23:52" (3/3) ... [2025-01-10 01:23:52,908 INFO L128 eAbstractionObserver]: Analyzing ICFG and-01-false.c [2025-01-10 01:23:52,918 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 01:23:52,919 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG and-01-false.c that has 1 procedures, 14 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-10 01:23:52,950 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 01:23:52,958 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;@760d548d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 01:23:52,958 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-10 01:23:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:52,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-10 01:23:52,965 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:23:52,965 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-10 01:23:52,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:23:52,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:23:52,969 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2025-01-10 01:23:52,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:23:52,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889086996] [2025-01-10 01:23:52,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:23:52,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:23:53,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 01:23:53,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 01:23:53,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:23:53,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:23:53,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:53,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:23:53,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889086996] [2025-01-10 01:23:53,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889086996] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:23:53,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:23:53,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:23:53,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279547951] [2025-01-10 01:23:53,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:23:53,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:23:53,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:23:53,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:23:53,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:23:53,130 INFO L87 Difference]: Start difference. First operand has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:53,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:23:53,167 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2025-01-10 01:23:53,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 01:23:53,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-01-10 01:23:53,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:23:53,174 INFO L225 Difference]: With dead ends: 19 [2025-01-10 01:23:53,174 INFO L226 Difference]: Without dead ends: 14 [2025-01-10 01:23:53,176 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 [2025-01-10 01:23:53,179 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:23:53,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:23:53,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-01-10 01:23:53,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2025-01-10 01:23:53,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:53,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2025-01-10 01:23:53,205 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 4 [2025-01-10 01:23:53,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:23:53,205 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2025-01-10 01:23:53,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:53,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2025-01-10 01:23:53,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-01-10 01:23:53,207 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:23:53,207 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 01:23:53,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 01:23:53,207 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:23:53,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:23:53,208 INFO L85 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2025-01-10 01:23:53,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:23:53,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011732159] [2025-01-10 01:23:53,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:23:53,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:23:53,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 01:23:53,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 01:23:53,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:23:53,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:23:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:53,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:23:53,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011732159] [2025-01-10 01:23:53,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011732159] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:23:53,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:23:53,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 01:23:53,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963475464] [2025-01-10 01:23:53,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:23:53,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 01:23:53,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:23:53,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 01:23:53,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 01:23:53,263 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:53,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:23:53,286 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2025-01-10 01:23:53,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 01:23:53,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-01-10 01:23:53,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:23:53,286 INFO L225 Difference]: With dead ends: 13 [2025-01-10 01:23:53,286 INFO L226 Difference]: Without dead ends: 12 [2025-01-10 01:23:53,287 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 [2025-01-10 01:23:53,287 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:23:53,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:23:53,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-01-10 01:23:53,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-01-10 01:23:53,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:53,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2025-01-10 01:23:53,290 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2025-01-10 01:23:53,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:23:53,290 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2025-01-10 01:23:53,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2025-01-10 01:23:53,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 01:23:53,290 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:23:53,290 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:23:53,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 01:23:53,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:23:53,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:23:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash 262872656, now seen corresponding path program 1 times [2025-01-10 01:23:53,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:23:53,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835085867] [2025-01-10 01:23:53,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:23:53,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:23:53,295 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 01:23:53,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 01:23:53,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:23:53,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:23:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:53,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:23:53,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835085867] [2025-01-10 01:23:53,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835085867] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:23:53,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469203513] [2025-01-10 01:23:53,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:23:53,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:23:53,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:23:53,387 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) [2025-01-10 01:23:53,388 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 [2025-01-10 01:23:53,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 01:23:53,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 01:23:53,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:23:53,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:23:53,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 01:23:53,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:23:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:53,444 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:23:53,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:53,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469203513] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:23:53,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:23:53,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-01-10 01:23:53,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645900107] [2025-01-10 01:23:53,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:23:53,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 01:23:53,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:23:53,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 01:23:53,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-01-10 01:23:53,497 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:53,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:23:53,557 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2025-01-10 01:23:53,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 01:23:53,558 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-10 01:23:53,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:23:53,558 INFO L225 Difference]: With dead ends: 34 [2025-01-10 01:23:53,558 INFO L226 Difference]: Without dead ends: 33 [2025-01-10 01:23:53,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-01-10 01:23:53,559 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:23:53,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 16 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:23:53,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-01-10 01:23:53,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2025-01-10 01:23:53,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:53,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2025-01-10 01:23:53,563 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 9 [2025-01-10 01:23:53,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:23:53,563 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2025-01-10 01:23:53,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:53,564 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2025-01-10 01:23:53,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-01-10 01:23:53,564 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:23:53,564 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1] [2025-01-10 01:23:53,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 01:23:53,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:23:53,765 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:23:53,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:23:53,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1388761404, now seen corresponding path program 2 times [2025-01-10 01:23:53,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:23:53,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022969550] [2025-01-10 01:23:53,765 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:23:53,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:23:53,771 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-01-10 01:23:53,779 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-01-10 01:23:53,779 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:23:53,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:23:53,965 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:53,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:23:53,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022969550] [2025-01-10 01:23:53,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022969550] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:23:53,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107163359] [2025-01-10 01:23:53,966 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:23:53,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:23:53,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:23:53,968 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) [2025-01-10 01:23:53,973 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 [2025-01-10 01:23:53,995 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-01-10 01:23:54,003 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-01-10 01:23:54,003 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:23:54,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:23:54,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-10 01:23:54,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:23:54,069 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:54,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:23:54,258 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:54,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107163359] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:23:54,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:23:54,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2025-01-10 01:23:54,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022075265] [2025-01-10 01:23:54,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:23:54,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-10 01:23:54,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:23:54,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-10 01:23:54,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-01-10 01:23:54,261 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 22 states, 21 states have (on average 2.238095238095238) internal successors, (47), 22 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:54,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:23:54,375 INFO L93 Difference]: Finished difference Result 76 states and 101 transitions. [2025-01-10 01:23:54,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-10 01:23:54,375 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.238095238095238) internal successors, (47), 22 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2025-01-10 01:23:54,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:23:54,376 INFO L225 Difference]: With dead ends: 76 [2025-01-10 01:23:54,376 INFO L226 Difference]: Without dead ends: 75 [2025-01-10 01:23:54,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-01-10 01:23:54,377 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 76 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:23:54,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 30 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:23:54,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2025-01-10 01:23:54,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2025-01-10 01:23:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 74 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:54,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 95 transitions. [2025-01-10 01:23:54,382 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 95 transitions. Word has length 24 [2025-01-10 01:23:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:23:54,382 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 95 transitions. [2025-01-10 01:23:54,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.238095238095238) internal successors, (47), 22 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:54,382 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 95 transitions. [2025-01-10 01:23:54,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-01-10 01:23:54,383 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:23:54,383 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1] [2025-01-10 01:23:54,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 01:23:54,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:23:54,584 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:23:54,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:23:54,584 INFO L85 PathProgramCache]: Analyzing trace with hash -856787644, now seen corresponding path program 3 times [2025-01-10 01:23:54,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:23:54,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275304521] [2025-01-10 01:23:54,585 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:23:54,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:23:54,598 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 54 statements into 11 equivalence classes. [2025-01-10 01:23:54,616 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 54 of 54 statements. [2025-01-10 01:23:54,616 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 01:23:54,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:23:55,336 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:55,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:23:55,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275304521] [2025-01-10 01:23:55,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275304521] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:23:55,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057904508] [2025-01-10 01:23:55,336 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:23:55,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:23:55,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:23:55,339 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) [2025-01-10 01:23:55,340 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 [2025-01-10 01:23:55,366 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 54 statements into 11 equivalence classes. [2025-01-10 01:23:55,391 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 54 of 54 statements. [2025-01-10 01:23:55,391 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 01:23:55,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:23:55,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-01-10 01:23:55,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:23:55,474 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:55,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:23:55,979 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:55,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057904508] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:23:55,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:23:55,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2025-01-10 01:23:55,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326853486] [2025-01-10 01:23:55,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:23:55,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-01-10 01:23:55,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:23:55,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-01-10 01:23:55,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2025-01-10 01:23:55,984 INFO L87 Difference]: Start difference. First operand 75 states and 95 transitions. Second operand has 46 states, 45 states have (on average 2.3777777777777778) internal successors, (107), 46 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:56,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:23:56,266 INFO L93 Difference]: Finished difference Result 160 states and 215 transitions. [2025-01-10 01:23:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-01-10 01:23:56,267 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.3777777777777778) internal successors, (107), 46 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2025-01-10 01:23:56,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:23:56,268 INFO L225 Difference]: With dead ends: 160 [2025-01-10 01:23:56,268 INFO L226 Difference]: Without dead ends: 159 [2025-01-10 01:23:56,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2025-01-10 01:23:56,269 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 188 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:23:56,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 46 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 01:23:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2025-01-10 01:23:56,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2025-01-10 01:23:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.2848101265822784) internal successors, (203), 158 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:56,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 203 transitions. [2025-01-10 01:23:56,288 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 203 transitions. Word has length 54 [2025-01-10 01:23:56,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:23:56,289 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 203 transitions. [2025-01-10 01:23:56,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.3777777777777778) internal successors, (107), 46 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:23:56,289 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 203 transitions. [2025-01-10 01:23:56,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-01-10 01:23:56,292 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:23:56,292 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1] [2025-01-10 01:23:56,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 01:23:56,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:23:56,493 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:23:56,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:23:56,494 INFO L85 PathProgramCache]: Analyzing trace with hash -604904892, now seen corresponding path program 4 times [2025-01-10 01:23:56,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:23:56,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804524717] [2025-01-10 01:23:56,494 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 01:23:56,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:23:56,509 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 114 statements into 2 equivalence classes. [2025-01-10 01:23:56,533 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 114 of 114 statements. [2025-01-10 01:23:56,536 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 01:23:56,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:23:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:57,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:23:57,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804524717] [2025-01-10 01:23:57,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804524717] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:23:57,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79625373] [2025-01-10 01:23:57,897 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 01:23:57,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:23:57,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:23:57,901 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) [2025-01-10 01:23:57,904 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 [2025-01-10 01:23:57,932 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 114 statements into 2 equivalence classes. [2025-01-10 01:23:57,961 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 114 of 114 statements. [2025-01-10 01:23:57,961 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 01:23:57,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:23:57,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-01-10 01:23:57,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:23:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:58,121 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:23:59,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:23:59,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79625373] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:23:59,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:23:59,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2025-01-10 01:23:59,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293429892] [2025-01-10 01:23:59,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:23:59,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-01-10 01:23:59,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:23:59,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-01-10 01:23:59,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2025-01-10 01:23:59,901 INFO L87 Difference]: Start difference. First operand 159 states and 203 transitions. Second operand has 96 states, 95 states have (on average 2.431578947368421) internal successors, (231), 96 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:24:00,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:24:00,469 INFO L93 Difference]: Finished difference Result 328 states and 443 transitions. [2025-01-10 01:24:00,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2025-01-10 01:24:00,470 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.431578947368421) internal successors, (231), 96 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2025-01-10 01:24:00,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:24:00,472 INFO L225 Difference]: With dead ends: 328 [2025-01-10 01:24:00,472 INFO L226 Difference]: Without dead ends: 327 [2025-01-10 01:24:00,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2823 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2025-01-10 01:24:00,474 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 640 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 01:24:00,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 65 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 01:24:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2025-01-10 01:24:00,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2025-01-10 01:24:00,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 326 states have (on average 1.2852760736196318) internal successors, (419), 326 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:24:00,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 419 transitions. [2025-01-10 01:24:00,488 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 419 transitions. Word has length 114 [2025-01-10 01:24:00,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:24:00,488 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 419 transitions. [2025-01-10 01:24:00,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.431578947368421) internal successors, (231), 96 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:24:00,489 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 419 transitions. [2025-01-10 01:24:00,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2025-01-10 01:24:00,491 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:24:00,491 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1] [2025-01-10 01:24:00,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 01:24:00,695 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,SelfDestructingSolverStorable5 [2025-01-10 01:24:00,695 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:24:00,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:24:00,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1505508420, now seen corresponding path program 5 times [2025-01-10 01:24:00,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:24:00,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689824319] [2025-01-10 01:24:00,696 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 01:24:00,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:24:00,704 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 234 statements into 47 equivalence classes. [2025-01-10 01:24:00,816 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 234 of 234 statements. [2025-01-10 01:24:00,816 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-01-10 01:24:00,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:24:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:24:04,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:24:04,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689824319] [2025-01-10 01:24:04,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689824319] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:24:04,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194739231] [2025-01-10 01:24:04,299 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 01:24:04,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:24:04,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:24:04,301 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) [2025-01-10 01:24:04,302 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 [2025-01-10 01:24:04,340 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 234 statements into 47 equivalence classes. [2025-01-10 01:24:04,461 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 234 of 234 statements. [2025-01-10 01:24:04,461 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-01-10 01:24:04,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:24:04,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 95 conjuncts are in the unsatisfiable core [2025-01-10 01:24:04,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:24:04,717 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:24:04,718 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:24:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:24:10,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194739231] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:24:10,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:24:10,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2025-01-10 01:24:10,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193631608] [2025-01-10 01:24:10,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:24:10,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2025-01-10 01:24:10,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:24:10,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2025-01-10 01:24:10,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2025-01-10 01:24:10,698 INFO L87 Difference]: Start difference. First operand 327 states and 419 transitions. Second operand has 190 states, 189 states have (on average 2.4708994708994707) internal successors, (467), 190 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:24:12,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:24:12,609 INFO L93 Difference]: Finished difference Result 1249 states and 1653 transitions. [2025-01-10 01:24:12,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2025-01-10 01:24:12,610 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.4708994708994707) internal successors, (467), 190 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2025-01-10 01:24:12,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:24:12,617 INFO L225 Difference]: With dead ends: 1249 [2025-01-10 01:24:12,618 INFO L226 Difference]: Without dead ends: 1248 [2025-01-10 01:24:12,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10765 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2025-01-10 01:24:12,621 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 1657 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-10 01:24:12,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 114 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-10 01:24:12,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2025-01-10 01:24:12,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 661. [2025-01-10 01:24:12,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 660 states have (on average 1.284848484848485) internal successors, (848), 660 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:24:12,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 848 transitions. [2025-01-10 01:24:12,651 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 848 transitions. Word has length 234 [2025-01-10 01:24:12,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:24:12,654 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 848 transitions. [2025-01-10 01:24:12,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.4708994708994707) internal successors, (467), 190 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:24:12,654 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 848 transitions. [2025-01-10 01:24:12,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2025-01-10 01:24:12,667 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:24:12,667 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1, 1] [2025-01-10 01:24:12,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 01:24:12,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:24:12,868 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:24:12,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:24:12,869 INFO L85 PathProgramCache]: Analyzing trace with hash 794751044, now seen corresponding path program 6 times [2025-01-10 01:24:12,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:24:12,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401942753] [2025-01-10 01:24:12,869 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 01:24:12,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:24:12,891 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 474 statements into 95 equivalence classes. [2025-01-10 01:24:13,102 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 474 of 474 statements. [2025-01-10 01:24:13,102 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-01-10 01:24:13,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:24:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:24:26,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:24:26,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401942753] [2025-01-10 01:24:26,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401942753] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:24:26,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689268066] [2025-01-10 01:24:26,611 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 01:24:26,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:24:26,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:24:26,614 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) [2025-01-10 01:24:26,615 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 [2025-01-10 01:24:26,701 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 474 statements into 95 equivalence classes. [2025-01-10 01:24:27,051 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 474 of 474 statements. [2025-01-10 01:24:27,051 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-01-10 01:24:27,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:24:27,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 191 conjuncts are in the unsatisfiable core [2025-01-10 01:24:27,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:24:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:24:27,549 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:24:50,391 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:24:50,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689268066] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:24:50,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:24:50,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2025-01-10 01:24:50,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808207339] [2025-01-10 01:24:50,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:24:50,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2025-01-10 01:24:50,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:24:50,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2025-01-10 01:24:50,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2025-01-10 01:24:50,428 INFO L87 Difference]: Start difference. First operand 661 states and 848 transitions. Second operand has 382 states, 381 states have (on average 2.4855643044619424) internal successors, (947), 382 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:06,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:25:06,976 INFO L93 Difference]: Finished difference Result 1334 states and 1808 transitions. [2025-01-10 01:25:06,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2025-01-10 01:25:06,977 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 2.4855643044619424) internal successors, (947), 382 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 474 [2025-01-10 01:25:06,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:25:06,985 INFO L225 Difference]: With dead ends: 1334 [2025-01-10 01:25:06,988 INFO L226 Difference]: Without dead ends: 1333 [2025-01-10 01:25:06,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1137 GetRequests, 757 SyntacticMatches, 0 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44557 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2025-01-10 01:25:06,997 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 3432 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3432 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:25:06,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3432 Valid, 228 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-10 01:25:06,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2025-01-10 01:25:07,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1333. [2025-01-10 01:25:07,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1332 states have (on average 1.2852852852852852) internal successors, (1712), 1332 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:07,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1712 transitions. [2025-01-10 01:25:07,021 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1712 transitions. Word has length 474 [2025-01-10 01:25:07,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:25:07,021 INFO L471 AbstractCegarLoop]: Abstraction has 1333 states and 1712 transitions. [2025-01-10 01:25:07,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 2.4855643044619424) internal successors, (947), 382 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:07,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1712 transitions. [2025-01-10 01:25:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2025-01-10 01:25:07,027 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:25:07,028 INFO L218 NwaCegarLoop]: trace histogram [191, 190, 190, 190, 190, 1, 1, 1] [2025-01-10 01:25:07,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-10 01:25:07,228 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,SelfDestructingSolverStorable7 [2025-01-10 01:25:07,229 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:25:07,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:25:07,229 INFO L85 PathProgramCache]: Analyzing trace with hash 450648132, now seen corresponding path program 7 times [2025-01-10 01:25:07,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:25:07,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636115459] [2025-01-10 01:25:07,230 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-10 01:25:07,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:25:07,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 954 statements into 1 equivalence classes. [2025-01-10 01:25:07,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 954 of 954 statements. [2025-01-10 01:25:07,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:25:07,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat