./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label31.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label31.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4dd87ffa8279e5be73819f1eecf23f4704317559faef100e8eb60d719eb066b --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 10:43:06,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 10:43:06,179 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 10:43:06,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 10:43:06,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 10:43:06,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 10:43:06,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 10:43:06,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 10:43:06,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 10:43:06,210 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 10:43:06,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 10:43:06,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 10:43:06,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 10:43:06,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 10:43:06,211 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 10:43:06,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 10:43:06,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 10:43:06,212 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 10:43:06,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 10:43:06,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 10:43:06,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 10:43:06,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 10:43:06,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 10:43:06,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 10:43:06,213 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 10:43:06,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 10:43:06,213 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 10:43:06,213 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 10:43:06,213 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 10:43:06,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 10:43:06,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 10:43:06,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 10:43:06,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 10:43:06,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 10:43:06,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 10:43:06,214 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 10:43:06,214 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 10:43:06,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 10:43:06,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 10:43:06,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 10:43:06,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 10:43:06,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 10:43:06,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 10:43:06,215 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4dd87ffa8279e5be73819f1eecf23f4704317559faef100e8eb60d719eb066b [2025-02-05 10:43:06,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 10:43:06,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 10:43:06,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 10:43:06,486 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 10:43:06,487 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 10:43:06,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2025-02-05 10:43:07,688 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a35da1efb/4553c219fa1f43ad86be5f1c9f735e2b/FLAG90c3b5eba [2025-02-05 10:43:08,117 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 10:43:08,117 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2025-02-05 10:43:08,129 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a35da1efb/4553c219fa1f43ad86be5f1c9f735e2b/FLAG90c3b5eba [2025-02-05 10:43:08,277 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a35da1efb/4553c219fa1f43ad86be5f1c9f735e2b [2025-02-05 10:43:08,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 10:43:08,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 10:43:08,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 10:43:08,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 10:43:08,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 10:43:08,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f92fc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08, skipping insertion in model container [2025-02-05 10:43:08,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,305 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 10:43:08,509 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label31.c[16993,17006] [2025-02-05 10:43:08,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 10:43:08,545 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 10:43:08,598 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label31.c[16993,17006] [2025-02-05 10:43:08,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 10:43:08,617 INFO L204 MainTranslator]: Completed translation [2025-02-05 10:43:08,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08 WrapperNode [2025-02-05 10:43:08,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 10:43:08,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 10:43:08,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 10:43:08,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 10:43:08,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,676 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 655 [2025-02-05 10:43:08,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 10:43:08,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 10:43:08,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 10:43:08,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 10:43:08,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,685 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,707 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-05 10:43:08,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,728 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,737 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 10:43:08,746 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 10:43:08,746 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 10:43:08,746 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 10:43:08,748 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (1/1) ... [2025-02-05 10:43:08,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 10:43:08,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 10:43:08,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 10:43:08,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 10:43:08,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 10:43:08,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 10:43:08,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 10:43:08,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 10:43:08,904 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 10:43:08,909 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 10:43:09,840 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2025-02-05 10:43:09,841 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 10:43:09,853 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 10:43:09,854 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 10:43:09,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 10:43:09 BoogieIcfgContainer [2025-02-05 10:43:09,854 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 10:43:09,856 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 10:43:09,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 10:43:09,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 10:43:09,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:43:08" (1/3) ... [2025-02-05 10:43:09,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6c098b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:43:09, skipping insertion in model container [2025-02-05 10:43:09,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:43:08" (2/3) ... [2025-02-05 10:43:09,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6c098b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:43:09, skipping insertion in model container [2025-02-05 10:43:09,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 10:43:09" (3/3) ... [2025-02-05 10:43:09,861 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem01_label31.c [2025-02-05 10:43:09,872 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 10:43:09,874 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem01_label31.c that has 1 procedures, 198 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 10:43:09,909 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 10:43:09,917 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;@58a3e926, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 10:43:09,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 10:43:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.663265306122449) internal successors, (326), 197 states have internal predecessors, (326), 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) [2025-02-05 10:43:09,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-02-05 10:43:09,925 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:09,926 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:09,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:09,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:09,930 INFO L85 PathProgramCache]: Analyzing trace with hash 71966847, now seen corresponding path program 1 times [2025-02-05 10:43:09,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:09,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102001370] [2025-02-05 10:43:09,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:09,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:09,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-02-05 10:43:10,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-02-05 10:43:10,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:10,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:10,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 10:43:10,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:10,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102001370] [2025-02-05 10:43:10,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102001370] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:10,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:10,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:43:10,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073423890] [2025-02-05 10:43:10,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:10,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:43:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:10,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:43:10,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:10,313 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.663265306122449) internal successors, (326), 197 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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) [2025-02-05 10:43:10,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:10,841 INFO L93 Difference]: Finished difference Result 528 states and 912 transitions. [2025-02-05 10:43:10,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:43:10,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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 92 [2025-02-05 10:43:10,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:10,855 INFO L225 Difference]: With dead ends: 528 [2025-02-05 10:43:10,855 INFO L226 Difference]: Without dead ends: 266 [2025-02-05 10:43:10,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:10,863 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 90 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:10,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 73 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 10:43:10,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2025-02-05 10:43:10,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2025-02-05 10:43:10,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.411320754716981) internal successors, (374), 265 states have internal predecessors, (374), 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) [2025-02-05 10:43:10,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 374 transitions. [2025-02-05 10:43:10,927 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 374 transitions. Word has length 92 [2025-02-05 10:43:10,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:10,927 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 374 transitions. [2025-02-05 10:43:10,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 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) [2025-02-05 10:43:10,927 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 374 transitions. [2025-02-05 10:43:10,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-05 10:43:10,929 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:10,929 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:10,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 10:43:10,933 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:10,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:10,933 INFO L85 PathProgramCache]: Analyzing trace with hash 411551426, now seen corresponding path program 1 times [2025-02-05 10:43:10,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:10,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559639948] [2025-02-05 10:43:10,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:10,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:10,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-05 10:43:10,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-05 10:43:10,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:10,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 10:43:11,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:11,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559639948] [2025-02-05 10:43:11,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559639948] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:11,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:11,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:43:11,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366213395] [2025-02-05 10:43:11,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:11,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:43:11,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:11,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:43:11,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:11,139 INFO L87 Difference]: Start difference. First operand 266 states and 374 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2025-02-05 10:43:11,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:11,494 INFO L93 Difference]: Finished difference Result 792 states and 1117 transitions. [2025-02-05 10:43:11,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:43:11,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2025-02-05 10:43:11,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:11,500 INFO L225 Difference]: With dead ends: 792 [2025-02-05 10:43:11,500 INFO L226 Difference]: Without dead ends: 528 [2025-02-05 10:43:11,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:11,501 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 59 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:11,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 19 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 10:43:11,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2025-02-05 10:43:11,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 397. [2025-02-05 10:43:11,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 396 states have (on average 1.4267676767676767) internal successors, (565), 396 states have internal predecessors, (565), 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) [2025-02-05 10:43:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 565 transitions. [2025-02-05 10:43:11,528 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 565 transitions. Word has length 96 [2025-02-05 10:43:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:11,529 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 565 transitions. [2025-02-05 10:43:11,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2025-02-05 10:43:11,529 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 565 transitions. [2025-02-05 10:43:11,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-05 10:43:11,534 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:11,534 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:11,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 10:43:11,534 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:11,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:11,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1592017757, now seen corresponding path program 1 times [2025-02-05 10:43:11,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:11,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470676826] [2025-02-05 10:43:11,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:11,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:11,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-05 10:43:11,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-05 10:43:11,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:11,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 10:43:11,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:11,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470676826] [2025-02-05 10:43:11,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470676826] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:11,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:11,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:43:11,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894093595] [2025-02-05 10:43:11,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:11,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:43:11,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:11,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:43:11,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:11,697 INFO L87 Difference]: Start difference. First operand 397 states and 565 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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) [2025-02-05 10:43:12,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:12,046 INFO L93 Difference]: Finished difference Result 1054 states and 1492 transitions. [2025-02-05 10:43:12,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:43:12,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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 97 [2025-02-05 10:43:12,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:12,048 INFO L225 Difference]: With dead ends: 1054 [2025-02-05 10:43:12,048 INFO L226 Difference]: Without dead ends: 659 [2025-02-05 10:43:12,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:12,049 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:12,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 10:43:12,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2025-02-05 10:43:12,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2025-02-05 10:43:12,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3297872340425532) internal successors, (875), 658 states have internal predecessors, (875), 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) [2025-02-05 10:43:12,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 875 transitions. [2025-02-05 10:43:12,064 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 875 transitions. Word has length 97 [2025-02-05 10:43:12,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:12,064 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 875 transitions. [2025-02-05 10:43:12,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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) [2025-02-05 10:43:12,064 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 875 transitions. [2025-02-05 10:43:12,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-02-05 10:43:12,065 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:12,065 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:12,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 10:43:12,065 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:12,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:12,066 INFO L85 PathProgramCache]: Analyzing trace with hash 132225070, now seen corresponding path program 1 times [2025-02-05 10:43:12,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:12,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032914349] [2025-02-05 10:43:12,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:12,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:12,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-02-05 10:43:12,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-02-05 10:43:12,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:12,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:12,248 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-05 10:43:12,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:12,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032914349] [2025-02-05 10:43:12,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032914349] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:12,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:12,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:43:12,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204131809] [2025-02-05 10:43:12,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:12,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:43:12,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:12,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:43:12,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:12,250 INFO L87 Difference]: Start difference. First operand 659 states and 875 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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) [2025-02-05 10:43:12,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:12,556 INFO L93 Difference]: Finished difference Result 1316 states and 1748 transitions. [2025-02-05 10:43:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:43:12,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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 108 [2025-02-05 10:43:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:12,559 INFO L225 Difference]: With dead ends: 1316 [2025-02-05 10:43:12,559 INFO L226 Difference]: Without dead ends: 659 [2025-02-05 10:43:12,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:12,560 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 132 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:12,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 62 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 10:43:12,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2025-02-05 10:43:12,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2025-02-05 10:43:12,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3206686930091185) internal successors, (869), 658 states have internal predecessors, (869), 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) [2025-02-05 10:43:12,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 869 transitions. [2025-02-05 10:43:12,589 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 869 transitions. Word has length 108 [2025-02-05 10:43:12,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:12,589 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 869 transitions. [2025-02-05 10:43:12,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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) [2025-02-05 10:43:12,589 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 869 transitions. [2025-02-05 10:43:12,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-02-05 10:43:12,590 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:12,590 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:12,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 10:43:12,591 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:12,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:12,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1149786225, now seen corresponding path program 1 times [2025-02-05 10:43:12,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:12,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630129085] [2025-02-05 10:43:12,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:12,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:12,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-05 10:43:12,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-05 10:43:12,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:12,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:12,715 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-05 10:43:12,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:12,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630129085] [2025-02-05 10:43:12,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630129085] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:12,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:12,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:43:12,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585838213] [2025-02-05 10:43:12,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:12,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 10:43:12,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:12,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 10:43:12,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 10:43:12,717 INFO L87 Difference]: Start difference. First operand 659 states and 869 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2025-02-05 10:43:13,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:13,305 INFO L93 Difference]: Finished difference Result 1971 states and 2560 transitions. [2025-02-05 10:43:13,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 10:43:13,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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 112 [2025-02-05 10:43:13,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:13,313 INFO L225 Difference]: With dead ends: 1971 [2025-02-05 10:43:13,313 INFO L226 Difference]: Without dead ends: 1314 [2025-02-05 10:43:13,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 10:43:13,315 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 264 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:13,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 47 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 10:43:13,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2025-02-05 10:43:13,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1183. [2025-02-05 10:43:13,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.239424703891709) internal successors, (1465), 1182 states have internal predecessors, (1465), 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) [2025-02-05 10:43:13,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1465 transitions. [2025-02-05 10:43:13,342 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1465 transitions. Word has length 112 [2025-02-05 10:43:13,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:13,343 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1465 transitions. [2025-02-05 10:43:13,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2025-02-05 10:43:13,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1465 transitions. [2025-02-05 10:43:13,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-05 10:43:13,345 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:13,346 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:13,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 10:43:13,346 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:13,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:13,347 INFO L85 PathProgramCache]: Analyzing trace with hash -274906602, now seen corresponding path program 1 times [2025-02-05 10:43:13,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:13,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908953834] [2025-02-05 10:43:13,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:13,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:13,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-05 10:43:13,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-05 10:43:13,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:13,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 10:43:13,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:13,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908953834] [2025-02-05 10:43:13,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908953834] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:13,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:13,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 10:43:13,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679395416] [2025-02-05 10:43:13,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:13,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:43:13,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:13,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:43:13,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:13,559 INFO L87 Difference]: Start difference. First operand 1183 states and 1465 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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) [2025-02-05 10:43:13,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:13,866 INFO L93 Difference]: Finished difference Result 2364 states and 2928 transitions. [2025-02-05 10:43:13,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:43:13,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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 137 [2025-02-05 10:43:13,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:13,870 INFO L225 Difference]: With dead ends: 2364 [2025-02-05 10:43:13,870 INFO L226 Difference]: Without dead ends: 1183 [2025-02-05 10:43:13,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:13,872 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 108 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:13,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 62 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 10:43:13,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2025-02-05 10:43:13,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2025-02-05 10:43:13,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.22419627749577) internal successors, (1447), 1182 states have internal predecessors, (1447), 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) [2025-02-05 10:43:13,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1447 transitions. [2025-02-05 10:43:13,889 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1447 transitions. Word has length 137 [2025-02-05 10:43:13,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:13,889 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1447 transitions. [2025-02-05 10:43:13,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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) [2025-02-05 10:43:13,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1447 transitions. [2025-02-05 10:43:13,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-05 10:43:13,891 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:13,891 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:13,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 10:43:13,891 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:13,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:13,892 INFO L85 PathProgramCache]: Analyzing trace with hash 715091123, now seen corresponding path program 1 times [2025-02-05 10:43:13,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:13,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344307127] [2025-02-05 10:43:13,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:13,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:13,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 10:43:13,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 10:43:13,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:13,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:14,025 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 10:43:14,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:14,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344307127] [2025-02-05 10:43:14,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344307127] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:14,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:14,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:43:14,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350621896] [2025-02-05 10:43:14,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:14,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 10:43:14,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:14,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 10:43:14,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 10:43:14,027 INFO L87 Difference]: Start difference. First operand 1183 states and 1447 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 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) [2025-02-05 10:43:14,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:14,563 INFO L93 Difference]: Finished difference Result 2757 states and 3333 transitions. [2025-02-05 10:43:14,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 10:43:14,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 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 141 [2025-02-05 10:43:14,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:14,568 INFO L225 Difference]: With dead ends: 2757 [2025-02-05 10:43:14,568 INFO L226 Difference]: Without dead ends: 1576 [2025-02-05 10:43:14,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 10:43:14,570 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 246 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:14,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 58 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 10:43:14,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2025-02-05 10:43:14,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2025-02-05 10:43:14,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.2001385041551247) internal successors, (1733), 1444 states have internal predecessors, (1733), 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) [2025-02-05 10:43:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1733 transitions. [2025-02-05 10:43:14,590 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1733 transitions. Word has length 141 [2025-02-05 10:43:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:14,590 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1733 transitions. [2025-02-05 10:43:14,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 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) [2025-02-05 10:43:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1733 transitions. [2025-02-05 10:43:14,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-02-05 10:43:14,592 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:14,592 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:14,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 10:43:14,593 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:14,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:14,593 INFO L85 PathProgramCache]: Analyzing trace with hash 82216427, now seen corresponding path program 1 times [2025-02-05 10:43:14,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:14,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889137630] [2025-02-05 10:43:14,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:14,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:14,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 10:43:14,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 10:43:14,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:14,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-05 10:43:14,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:14,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889137630] [2025-02-05 10:43:14,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889137630] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:14,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:14,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:43:14,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167201146] [2025-02-05 10:43:14,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:14,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:43:14,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:14,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:43:14,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:14,724 INFO L87 Difference]: Start difference. First operand 1445 states and 1733 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2025-02-05 10:43:15,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:15,043 INFO L93 Difference]: Finished difference Result 3281 states and 3923 transitions. [2025-02-05 10:43:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:43:15,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 158 [2025-02-05 10:43:15,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:15,049 INFO L225 Difference]: With dead ends: 3281 [2025-02-05 10:43:15,049 INFO L226 Difference]: Without dead ends: 1838 [2025-02-05 10:43:15,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:15,051 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 93 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:15,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 55 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 10:43:15,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2025-02-05 10:43:15,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1576. [2025-02-05 10:43:15,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 1.2063492063492063) internal successors, (1900), 1575 states have internal predecessors, (1900), 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) [2025-02-05 10:43:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1900 transitions. [2025-02-05 10:43:15,093 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1900 transitions. Word has length 158 [2025-02-05 10:43:15,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:15,093 INFO L471 AbstractCegarLoop]: Abstraction has 1576 states and 1900 transitions. [2025-02-05 10:43:15,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2025-02-05 10:43:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1900 transitions. [2025-02-05 10:43:15,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-02-05 10:43:15,095 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:15,096 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:15,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 10:43:15,096 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:15,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:15,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1531927954, now seen corresponding path program 1 times [2025-02-05 10:43:15,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:15,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784230637] [2025-02-05 10:43:15,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:15,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:15,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-02-05 10:43:15,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-02-05 10:43:15,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:15,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-05 10:43:15,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:15,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784230637] [2025-02-05 10:43:15,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784230637] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:15,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:15,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:43:15,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413548275] [2025-02-05 10:43:15,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:15,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:43:15,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:15,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:43:15,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:15,195 INFO L87 Difference]: Start difference. First operand 1576 states and 1900 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2025-02-05 10:43:15,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:15,522 INFO L93 Difference]: Finished difference Result 3543 states and 4257 transitions. [2025-02-05 10:43:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:43:15,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 185 [2025-02-05 10:43:15,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:15,527 INFO L225 Difference]: With dead ends: 3543 [2025-02-05 10:43:15,527 INFO L226 Difference]: Without dead ends: 1969 [2025-02-05 10:43:15,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:15,528 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 88 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:15,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 191 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 10:43:15,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2025-02-05 10:43:15,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2025-02-05 10:43:15,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1834512792596625) internal successors, (2174), 1837 states have internal predecessors, (2174), 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) [2025-02-05 10:43:15,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2174 transitions. [2025-02-05 10:43:15,554 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2174 transitions. Word has length 185 [2025-02-05 10:43:15,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:15,554 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2174 transitions. [2025-02-05 10:43:15,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2025-02-05 10:43:15,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2174 transitions. [2025-02-05 10:43:15,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-05 10:43:15,556 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:15,556 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:15,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 10:43:15,557 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:15,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:15,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1338135163, now seen corresponding path program 1 times [2025-02-05 10:43:15,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:15,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345991844] [2025-02-05 10:43:15,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:15,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:15,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 198 statements into 1 equivalence classes. [2025-02-05 10:43:15,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 198 of 198 statements. [2025-02-05 10:43:15,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:15,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-05 10:43:15,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:15,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345991844] [2025-02-05 10:43:15,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345991844] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:15,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:15,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:43:15,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291254222] [2025-02-05 10:43:15,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:15,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:43:15,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:15,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:43:15,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:15,657 INFO L87 Difference]: Start difference. First operand 1838 states and 2174 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2025-02-05 10:43:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:16,045 INFO L93 Difference]: Finished difference Result 3674 states and 4346 transitions. [2025-02-05 10:43:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:43:16,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 198 [2025-02-05 10:43:16,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:16,057 INFO L225 Difference]: With dead ends: 3674 [2025-02-05 10:43:16,057 INFO L226 Difference]: Without dead ends: 1838 [2025-02-05 10:43:16,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:16,063 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 98 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:16,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 178 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 10:43:16,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2025-02-05 10:43:16,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2025-02-05 10:43:16,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1475231355470876) internal successors, (2108), 1837 states have internal predecessors, (2108), 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) [2025-02-05 10:43:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2108 transitions. [2025-02-05 10:43:16,129 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2108 transitions. Word has length 198 [2025-02-05 10:43:16,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:16,130 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2108 transitions. [2025-02-05 10:43:16,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2025-02-05 10:43:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2108 transitions. [2025-02-05 10:43:16,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2025-02-05 10:43:16,137 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:16,137 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:16,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 10:43:16,138 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:16,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:16,138 INFO L85 PathProgramCache]: Analyzing trace with hash 509468635, now seen corresponding path program 1 times [2025-02-05 10:43:16,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:16,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415891989] [2025-02-05 10:43:16,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:16,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:16,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-02-05 10:43:16,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-02-05 10:43:16,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:16,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:16,458 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 113 proven. 56 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-05 10:43:16,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:16,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415891989] [2025-02-05 10:43:16,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415891989] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 10:43:16,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967825832] [2025-02-05 10:43:16,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:16,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 10:43:16,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 10:43:16,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 10:43:16,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 10:43:16,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 207 statements into 1 equivalence classes. [2025-02-05 10:43:16,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 207 of 207 statements. [2025-02-05 10:43:16,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:16,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:16,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 10:43:16,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 10:43:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2025-02-05 10:43:16,827 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 10:43:16,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967825832] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:16,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 10:43:16,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-02-05 10:43:16,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341082508] [2025-02-05 10:43:16,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:16,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:43:16,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:16,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:43:16,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 10:43:16,828 INFO L87 Difference]: Start difference. First operand 1838 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2025-02-05 10:43:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:17,152 INFO L93 Difference]: Finished difference Result 2888 states and 3260 transitions. [2025-02-05 10:43:17,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:43:17,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 207 [2025-02-05 10:43:17,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:17,160 INFO L225 Difference]: With dead ends: 2888 [2025-02-05 10:43:17,160 INFO L226 Difference]: Without dead ends: 2886 [2025-02-05 10:43:17,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 10:43:17,162 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 61 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:17,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 31 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 10:43:17,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2025-02-05 10:43:17,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2025-02-05 10:43:17,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2885 states have (on average 1.1292894280762564) internal successors, (3258), 2885 states have internal predecessors, (3258), 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) [2025-02-05 10:43:17,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3258 transitions. [2025-02-05 10:43:17,202 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3258 transitions. Word has length 207 [2025-02-05 10:43:17,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:17,202 INFO L471 AbstractCegarLoop]: Abstraction has 2886 states and 3258 transitions. [2025-02-05 10:43:17,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2025-02-05 10:43:17,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3258 transitions. [2025-02-05 10:43:17,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2025-02-05 10:43:17,206 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 10:43:17,207 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:17,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 10:43:17,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-05 10:43:17,411 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 10:43:17,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 10:43:17,411 INFO L85 PathProgramCache]: Analyzing trace with hash 761668828, now seen corresponding path program 1 times [2025-02-05 10:43:17,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 10:43:17,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861911346] [2025-02-05 10:43:17,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 10:43:17,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 10:43:17,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 214 statements into 1 equivalence classes. [2025-02-05 10:43:17,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 214 of 214 statements. [2025-02-05 10:43:17,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 10:43:17,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 10:43:17,482 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-02-05 10:43:17,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 10:43:17,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861911346] [2025-02-05 10:43:17,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861911346] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 10:43:17,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 10:43:17,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 10:43:17,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196762852] [2025-02-05 10:43:17,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 10:43:17,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 10:43:17,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 10:43:17,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 10:43:17,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:17,483 INFO L87 Difference]: Start difference. First operand 2886 states and 3258 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2025-02-05 10:43:17,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 10:43:17,785 INFO L93 Difference]: Finished difference Result 4982 states and 5648 transitions. [2025-02-05 10:43:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 10:43:17,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 214 [2025-02-05 10:43:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 10:43:17,786 INFO L225 Difference]: With dead ends: 4982 [2025-02-05 10:43:17,786 INFO L226 Difference]: Without dead ends: 0 [2025-02-05 10:43:17,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 10:43:17,790 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 82 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 10:43:17,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 190 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 10:43:17,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-05 10:43:17,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-05 10:43:17,791 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) [2025-02-05 10:43:17,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-05 10:43:17,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2025-02-05 10:43:17,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 10:43:17,792 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-05 10:43:17,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2025-02-05 10:43:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-05 10:43:17,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-05 10:43:17,794 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 10:43:17,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-05 10:43:17,796 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 10:43:17,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-05 10:43:17,898 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 10:43:17,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 10:43:17 BoogieIcfgContainer [2025-02-05 10:43:17,909 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 10:43:17,909 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 10:43:17,909 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 10:43:17,909 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 10:43:17,910 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 10:43:09" (3/4) ... [2025-02-05 10:43:17,911 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-05 10:43:17,921 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-05 10:43:17,922 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-05 10:43:17,923 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-05 10:43:17,923 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-05 10:43:18,011 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-05 10:43:18,011 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-05 10:43:18,011 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 10:43:18,012 INFO L158 Benchmark]: Toolchain (without parser) took 9731.00ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 104.9MB in the beginning and 309.1MB in the end (delta: -204.2MB). Peak memory consumption was 213.0MB. Max. memory is 16.1GB. [2025-02-05 10:43:18,012 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 10:43:18,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.66ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 78.5MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-05 10:43:18,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.02ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 72.9MB in the end (delta: 5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 10:43:18,013 INFO L158 Benchmark]: Boogie Preprocessor took 68.25ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 69.2MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 10:43:18,013 INFO L158 Benchmark]: IcfgBuilder took 1108.56ms. Allocated memory is still 142.6MB. Free memory was 69.2MB in the beginning and 53.5MB in the end (delta: 15.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-05 10:43:18,013 INFO L158 Benchmark]: TraceAbstraction took 8052.88ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 53.5MB in the beginning and 116.6MB in the end (delta: -63.1MB). Peak memory consumption was 145.9MB. Max. memory is 16.1GB. [2025-02-05 10:43:18,013 INFO L158 Benchmark]: Witness Printer took 102.43ms. Allocated memory is still 352.3MB. Free memory was 116.6MB in the beginning and 309.1MB in the end (delta: -192.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-05 10:43:18,014 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.66ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 78.5MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.02ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 72.9MB in the end (delta: 5.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.25ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 69.2MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1108.56ms. Allocated memory is still 142.6MB. Free memory was 69.2MB in the beginning and 53.5MB in the end (delta: 15.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8052.88ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 53.5MB in the beginning and 116.6MB in the end (delta: -63.1MB). Peak memory consumption was 145.9MB. Max. memory is 16.1GB. * Witness Printer took 102.43ms. Allocated memory is still 352.3MB. Free memory was 116.6MB in the beginning and 309.1MB in the end (delta: -192.5MB). Peak memory consumption was 16.8MB. 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: 462]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1493 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1493 mSDsluCounter, 995 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 717 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4431 IncrementalHoareTripleChecker+Invalid, 5148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 717 mSolverCounterUnsat, 926 mSDtfsCounter, 4431 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2886occurred in iteration=11, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 786 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1952 NumberOfCodeBlocks, 1952 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1939 ConstructedInterpolants, 0 QuantifiedInterpolants, 4342 SizeOfPredicates, 0 NumberOfNonLiveVariables, 364 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 1117/1173 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 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Location Invariant Derived location invariant: (((((a7 == 1) && (a20 == 1)) || (((a21 == 1) && (a7 == 1)) && (a16 <= 5))) || (((a17 == 1) && (a7 == 1)) && (a16 <= 5))) || ((a7 <= 0) && (a21 == 1))) RESULT: Ultimate proved your program to be correct! [2025-02-05 10:43:18,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE