./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 cf5951cf7c939342bb5d014c8a7a12e4f95042e50c8d2f477b21d0a3234d49fe --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:46:20,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:46:20,490 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 14:46:20,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:46:20,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:46:20,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:46:20,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:46:20,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:46:20,519 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:46:20,519 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:46:20,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:46:20,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:46:20,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:46:20,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:46:20,520 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:46:20,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:46:20,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:46:20,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:46:20,521 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/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 -> cf5951cf7c939342bb5d014c8a7a12e4f95042e50c8d2f477b21d0a3234d49fe [2025-03-17 14:46:20,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:46:20,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:46:20,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:46:20,793 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:46:20,793 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:46:20,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c [2025-03-17 14:46:21,963 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37623eda6/f1d111f36e3148d681a0ebd185ea5351/FLAG81bf6ae5f [2025-03-17 14:46:22,204 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:46:22,205 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c [2025-03-17 14:46:22,216 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37623eda6/f1d111f36e3148d681a0ebd185ea5351/FLAG81bf6ae5f [2025-03-17 14:46:22,545 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37623eda6/f1d111f36e3148d681a0ebd185ea5351 [2025-03-17 14:46:22,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:46:22,548 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:46:22,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:46:22,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:46:22,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:46:22,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d5e064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22, skipping insertion in model container [2025-03-17 14:46:22,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,567 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:46:22,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:46:22,674 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:46:22,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:46:22,691 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:46:22,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22 WrapperNode [2025-03-17 14:46:22,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:46:22,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:46:22,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:46:22,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:46:22,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,709 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2025-03-17 14:46:22,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:46:22,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:46:22,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:46:22,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:46:22,715 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,717 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,720 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 14:46:22,720 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,721 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,722 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:46:22,724 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:46:22,724 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:46:22,724 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:46:22,725 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (1/1) ... [2025-03-17 14:46:22,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:46:22,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:46:22,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 14:46:22,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 14:46:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:46:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:46:22,822 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:46:22,823 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:46:22,897 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-17 14:46:22,897 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:46:22,907 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:46:22,908 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:46:22,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:46:22 BoogieIcfgContainer [2025-03-17 14:46:22,908 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:46:22,910 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:46:22,910 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:46:22,914 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:46:22,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:46:22" (1/3) ... [2025-03-17 14:46:22,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf66dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:46:22, skipping insertion in model container [2025-03-17 14:46:22,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:46:22" (2/3) ... [2025-03-17 14:46:22,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf66dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:46:22, skipping insertion in model container [2025-03-17 14:46:22,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:46:22" (3/3) ... [2025-03-17 14:46:22,916 INFO L128 eAbstractionObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Introduction.c [2025-03-17 14:46:22,927 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:46:22,928 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG BrockschmidtCookFuhs-CAV2013-Introduction.c that has 1 procedures, 12 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2025-03-17 14:46:22,974 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:46:22,983 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;@21baa441, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:46:22,985 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 14:46:22,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:46:22,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 14:46:22,993 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:46:22,995 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 14:46:22,995 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:46:22,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:46:23,000 INFO L85 PathProgramCache]: Analyzing trace with hash 39688, now seen corresponding path program 1 times [2025-03-17 14:46:23,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:46:23,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575013022] [2025-03-17 14:46:23,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:46:23,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:46:23,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 14:46:23,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 14:46:23,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:23,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:23,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:23,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:46:23,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575013022] [2025-03-17 14:46:23,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575013022] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:46:23,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:46:23,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:46:23,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199571717] [2025-03-17 14:46:23,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:46:23,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:46:23,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:46:23,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:46:23,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:46:23,161 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-03-17 14:46:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:46:23,221 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2025-03-17 14:46:23,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:46:23,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2025-03-17 14:46:23,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:46:23,228 INFO L225 Difference]: With dead ends: 19 [2025-03-17 14:46:23,228 INFO L226 Difference]: Without dead ends: 15 [2025-03-17 14:46:23,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:46:23,233 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:46:23,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 9 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:46:23,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-17 14:46:23,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-03-17 14:46:23,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 14 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) [2025-03-17 14:46:23,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2025-03-17 14:46:23,259 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 3 [2025-03-17 14:46:23,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:46:23,259 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-03-17 14:46:23,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2025-03-17 14:46:23,260 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2025-03-17 14:46:23,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 14:46:23,261 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:46:23,261 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 14:46:23,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:46:23,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:46:23,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:46:23,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1230303, now seen corresponding path program 1 times [2025-03-17 14:46:23,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:46:23,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495961198] [2025-03-17 14:46:23,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:46:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:46:23,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 14:46:23,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 14:46:23,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:23,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:23,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:23,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:46:23,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495961198] [2025-03-17 14:46:23,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495961198] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:46:23,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:46:23,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:46:23,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507819969] [2025-03-17 14:46:23,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:46:23,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:46:23,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:46:23,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:46:23,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:46:23,287 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2025-03-17 14:46:23,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:46:23,309 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2025-03-17 14:46:23,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:46:23,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2025-03-17 14:46:23,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:46:23,309 INFO L225 Difference]: With dead ends: 16 [2025-03-17 14:46:23,309 INFO L226 Difference]: Without dead ends: 15 [2025-03-17 14:46:23,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:46:23,310 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:46:23,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:46:23,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-17 14:46:23,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-03-17 14:46:23,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 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) [2025-03-17 14:46:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2025-03-17 14:46:23,314 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 4 [2025-03-17 14:46:23,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:46:23,314 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2025-03-17 14:46:23,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2025-03-17 14:46:23,315 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2025-03-17 14:46:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-17 14:46:23,315 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:46:23,315 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 14:46:23,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 14:46:23,315 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:46:23,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:46:23,318 INFO L85 PathProgramCache]: Analyzing trace with hash 38139366, now seen corresponding path program 1 times [2025-03-17 14:46:23,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:46:23,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732316201] [2025-03-17 14:46:23,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:46:23,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:46:23,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 14:46:23,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 14:46:23,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:23,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:23,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:46:23,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732316201] [2025-03-17 14:46:23,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732316201] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:46:23,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:46:23,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:46:23,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706147538] [2025-03-17 14:46:23,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:46:23,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:46:23,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:46:23,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:46:23,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:46:23,354 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2025-03-17 14:46:23,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:46:23,367 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2025-03-17 14:46:23,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:46:23,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2025-03-17 14:46:23,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:46:23,368 INFO L225 Difference]: With dead ends: 15 [2025-03-17 14:46:23,368 INFO L226 Difference]: Without dead ends: 14 [2025-03-17 14:46:23,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:46:23,369 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:46:23,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:46:23,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-03-17 14:46:23,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-03-17 14:46:23,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 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) [2025-03-17 14:46:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2025-03-17 14:46:23,372 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2025-03-17 14:46:23,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:46:23,372 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2025-03-17 14:46:23,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2025-03-17 14:46:23,372 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2025-03-17 14:46:23,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-17 14:46:23,372 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:46:23,372 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-03-17 14:46:23,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 14:46:23,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:46:23,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:46:23,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1956509477, now seen corresponding path program 1 times [2025-03-17 14:46:23,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:46:23,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642009263] [2025-03-17 14:46:23,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:46:23,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:46:23,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 14:46:23,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 14:46:23,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:23,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:23,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:23,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:46:23,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642009263] [2025-03-17 14:46:23,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642009263] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:46:23,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476627811] [2025-03-17 14:46:23,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:46:23,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:23,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:46:23,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:46:23,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 14:46:23,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 14:46:23,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 14:46:23,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:23,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:23,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 14:46:23,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:46:23,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:23,530 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:46:23,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:23,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476627811] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:46:23,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:46:23,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-03-17 14:46:23,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888185141] [2025-03-17 14:46:23,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:46:23,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 14:46:23,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:46:23,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 14:46:23,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-17 14:46:23,587 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2025-03-17 14:46:23,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:46:23,686 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2025-03-17 14:46:23,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 14:46:23,687 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-17 14:46:23,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:46:23,690 INFO L225 Difference]: With dead ends: 20 [2025-03-17 14:46:23,691 INFO L226 Difference]: Without dead ends: 18 [2025-03-17 14:46:23,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2025-03-17 14:46:23,691 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:46:23,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:46:23,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-03-17 14:46:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-03-17 14:46:23,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:46:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2025-03-17 14:46:23,694 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2025-03-17 14:46:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:46:23,694 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2025-03-17 14:46:23,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2025-03-17 14:46:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2025-03-17 14:46:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 14:46:23,695 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:46:23,695 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2025-03-17 14:46:23,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 14:46:23,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:23,899 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:46:23,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:46:23,900 INFO L85 PathProgramCache]: Analyzing trace with hash -522251668, now seen corresponding path program 1 times [2025-03-17 14:46:23,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:46:23,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743158656] [2025-03-17 14:46:23,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:46:23,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:46:23,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 14:46:23,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 14:46:23,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:23,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:23,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:46:23,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743158656] [2025-03-17 14:46:23,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743158656] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:46:23,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151731649] [2025-03-17 14:46:23,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:46:23,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:23,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:46:23,958 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:46:23,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 14:46:23,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 14:46:23,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 14:46:23,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:23,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:23,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:46:23,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:46:24,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:24,045 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:46:24,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151731649] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:46:24,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:46:24,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2025-03-17 14:46:24,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465459679] [2025-03-17 14:46:24,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:46:24,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:46:24,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:46:24,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:46:24,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:46:24,046 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-03-17 14:46:24,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:46:24,075 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2025-03-17 14:46:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:46:24,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 [2025-03-17 14:46:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:46:24,076 INFO L225 Difference]: With dead ends: 18 [2025-03-17 14:46:24,076 INFO L226 Difference]: Without dead ends: 17 [2025-03-17 14:46:24,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-03-17 14:46:24,077 INFO L435 NwaCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:46:24,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:46:24,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-03-17 14:46:24,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-03-17 14:46:24,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 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) [2025-03-17 14:46:24,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2025-03-17 14:46:24,079 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 9 [2025-03-17 14:46:24,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:46:24,080 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2025-03-17 14:46:24,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-03-17 14:46:24,080 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2025-03-17 14:46:24,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-17 14:46:24,080 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:46:24,080 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1] [2025-03-17 14:46:24,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 14:46:24,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:24,281 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:46:24,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:46:24,281 INFO L85 PathProgramCache]: Analyzing trace with hash 393219805, now seen corresponding path program 1 times [2025-03-17 14:46:24,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:46:24,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289178468] [2025-03-17 14:46:24,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:46:24,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:46:24,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 14:46:24,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 14:46:24,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:24,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:24,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:46:24,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289178468] [2025-03-17 14:46:24,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289178468] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:46:24,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541163516] [2025-03-17 14:46:24,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:46:24,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:24,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:46:24,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:46:24,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 14:46:24,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 14:46:24,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 14:46:24,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:46:24,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:24,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 14:46:24,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:46:24,408 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:24,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:46:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:24,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541163516] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:46:24,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:46:24,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-17 14:46:24,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371715903] [2025-03-17 14:46:24,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:46:24,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 14:46:24,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:46:24,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 14:46:24,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:46:24,454 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2025-03-17 14:46:24,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:46:24,487 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2025-03-17 14:46:24,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:46:24,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 16 [2025-03-17 14:46:24,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:46:24,488 INFO L225 Difference]: With dead ends: 38 [2025-03-17 14:46:24,488 INFO L226 Difference]: Without dead ends: 37 [2025-03-17 14:46:24,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:46:24,489 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:46:24,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:46:24,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-03-17 14:46:24,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-03-17 14:46:24,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 36 states have internal predecessors, (37), 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) [2025-03-17 14:46:24,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2025-03-17 14:46:24,493 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 16 [2025-03-17 14:46:24,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:46:24,493 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2025-03-17 14:46:24,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2025-03-17 14:46:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2025-03-17 14:46:24,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-17 14:46:24,494 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:46:24,494 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1] [2025-03-17 14:46:24,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 14:46:24,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:24,695 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:46:24,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:46:24,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1775917283, now seen corresponding path program 2 times [2025-03-17 14:46:24,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:46:24,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106274610] [2025-03-17 14:46:24,696 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:46:24,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:46:24,702 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-03-17 14:46:24,716 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 14:46:24,717 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:46:24,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:24,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:46:24,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106274610] [2025-03-17 14:46:24,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106274610] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:46:24,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139262462] [2025-03-17 14:46:24,853 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:46:24,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:24,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:46:24,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:46:24,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 14:46:24,880 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 36 statements into 2 equivalence classes. [2025-03-17 14:46:24,889 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 14:46:24,889 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:46:24,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:24,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:46:24,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:46:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:24,944 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:46:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:46:25,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139262462] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:46:25,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:46:25,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2025-03-17 14:46:25,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166563690] [2025-03-17 14:46:25,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:46:25,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-17 14:46:25,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:46:25,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-17 14:46:25,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2025-03-17 14:46:25,062 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 16 states, 15 states have (on average 4.8) internal successors, (72), 15 states have internal predecessors, (72), 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) [2025-03-17 14:46:25,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:46:25,131 INFO L93 Difference]: Finished difference Result 78 states and 85 transitions. [2025-03-17 14:46:25,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 14:46:25,132 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.8) internal successors, (72), 15 states have internal predecessors, (72), 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 36 [2025-03-17 14:46:25,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:46:25,133 INFO L225 Difference]: With dead ends: 78 [2025-03-17 14:46:25,133 INFO L226 Difference]: Without dead ends: 77 [2025-03-17 14:46:25,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2025-03-17 14:46:25,134 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:46:25,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:46:25,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-03-17 14:46:25,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2025-03-17 14:46:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.013157894736842) internal successors, (77), 76 states have internal predecessors, (77), 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) [2025-03-17 14:46:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2025-03-17 14:46:25,139 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 36 [2025-03-17 14:46:25,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:46:25,140 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2025-03-17 14:46:25,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.8) internal successors, (72), 15 states have internal predecessors, (72), 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) [2025-03-17 14:46:25,140 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2025-03-17 14:46:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-17 14:46:25,141 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:46:25,141 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 1, 1] [2025-03-17 14:46:25,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 14:46:25,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:25,345 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:46:25,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:46:25,345 INFO L85 PathProgramCache]: Analyzing trace with hash -945490019, now seen corresponding path program 3 times [2025-03-17 14:46:25,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:46:25,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873544310] [2025-03-17 14:46:25,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:46:25,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:46:25,352 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 76 statements into 15 equivalence classes. [2025-03-17 14:46:25,357 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 26 of 76 statements. [2025-03-17 14:46:25,357 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-03-17 14:46:25,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 196 proven. 21 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2025-03-17 14:46:25,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:46:25,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873544310] [2025-03-17 14:46:25,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873544310] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:46:25,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128715123] [2025-03-17 14:46:25,428 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:46:25,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:25,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:46:25,431 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:46:25,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 14:46:25,451 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 76 statements into 15 equivalence classes. [2025-03-17 14:46:25,457 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 26 of 76 statements. [2025-03-17 14:46:25,458 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-03-17 14:46:25,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:46:25,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:46:25,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:46:25,490 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 196 proven. 21 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2025-03-17 14:46:25,491 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:46:25,595 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 196 proven. 21 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2025-03-17 14:46:25,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128715123] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:46:25,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:46:25,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-03-17 14:46:25,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783129156] [2025-03-17 14:46:25,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:46:25,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 14:46:25,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:46:25,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 14:46:25,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2025-03-17 14:46:25,596 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 14 states have internal predecessors, (42), 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) [2025-03-17 14:46:25,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:46:25,660 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2025-03-17 14:46:25,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:46:25,660 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 14 states have internal predecessors, (42), 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 76 [2025-03-17 14:46:25,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:46:25,661 INFO L225 Difference]: With dead ends: 77 [2025-03-17 14:46:25,661 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 14:46:25,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2025-03-17 14:46:25,662 INFO L435 NwaCegarLoop]: 1 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:46:25,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:46:25,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 14:46:25,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 14:46:25,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2025-03-17 14:46:25,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 14:46:25,662 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2025-03-17 14:46:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:46:25,662 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 14:46:25,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 14 states have internal predecessors, (42), 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) [2025-03-17 14:46:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 14:46:25,663 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 14:46:25,664 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-03-17 14:46:25,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-03-17 14:46:25,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-03-17 14:46:25,665 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-03-17 14:46:25,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 14:46:25,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:46:25,868 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2025-03-17 14:46:25,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-17 14:46:25,965 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 14:46:25,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:46:25 BoogieIcfgContainer [2025-03-17 14:46:25,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 14:46:25,977 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 14:46:25,977 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 14:46:25,978 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 14:46:25,978 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:46:22" (3/4) ... [2025-03-17 14:46:25,980 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 14:46:25,985 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-17 14:46:25,988 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 14:46:25,989 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-17 14:46:26,042 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 14:46:26,043 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 14:46:26,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 14:46:26,044 INFO L158 Benchmark]: Toolchain (without parser) took 3495.28ms. Allocated memory is still 167.8MB. Free memory was 124.2MB in the beginning and 105.0MB in the end (delta: 19.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2025-03-17 14:46:26,044 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 201.3MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:46:26,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 142.62ms. Allocated memory is still 167.8MB. Free memory was 124.2MB in the beginning and 114.2MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:46:26,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.91ms. Allocated memory is still 167.8MB. Free memory was 114.2MB in the beginning and 113.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:46:26,046 INFO L158 Benchmark]: Boogie Preprocessor took 13.38ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 112.2MB in the end (delta: 987.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:46:26,047 INFO L158 Benchmark]: IcfgBuilder took 184.46ms. Allocated memory is still 167.8MB. Free memory was 112.2MB in the beginning and 102.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:46:26,047 INFO L158 Benchmark]: TraceAbstraction took 3066.69ms. Allocated memory is still 167.8MB. Free memory was 101.6MB in the beginning and 111.5MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:46:26,047 INFO L158 Benchmark]: Witness Printer took 65.70ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 105.0MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:46:26,048 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 201.3MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 142.62ms. Allocated memory is still 167.8MB. Free memory was 124.2MB in the beginning and 114.2MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.91ms. Allocated memory is still 167.8MB. Free memory was 114.2MB in the beginning and 113.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.38ms. Allocated memory is still 167.8MB. Free memory was 113.2MB in the beginning and 112.2MB in the end (delta: 987.3kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 184.46ms. Allocated memory is still 167.8MB. Free memory was 112.2MB in the beginning and 102.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3066.69ms. Allocated memory is still 167.8MB. Free memory was 101.6MB in the beginning and 111.5MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 65.70ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 105.0MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 12 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 15, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 217 IncrementalHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 25 mSDtfsCounter, 217 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=7, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 302 NumberOfCodeBlocks, 202 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 421 ConstructedInterpolants, 0 QuantifiedInterpolants, 1069 SizeOfPredicates, 3 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 17 InterpolantComputations, 4 PerfectInterpolantSequences, 1515/1947 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Location Invariant Derived location invariant: (((x <= 2147483647) && (y == 1)) || (((y <= 2147483646) && ((((long) 2 * y) + x) <= 2147483650)) && (2 <= y))) RESULT: Ultimate proved your program to be correct! [2025-03-17 14:46:26,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE