./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/transmitter.13.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5975f0f3825b3a6653676f33bd69d14e1e58fcf0306bfb5508ab91dc8951d6c4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 05:55:34,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 05:55:34,135 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 05:55:34,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 05:55:34,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 05:55:34,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 05:55:34,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 05:55:34,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 05:55:34,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 05:55:34,160 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 05:55:34,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 05:55:34,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 05:55:34,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 05:55:34,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 05:55:34,161 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 05:55:34,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 05:55:34,162 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 05:55:34,163 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 05:55:34,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 05:55:34,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 05:55:34,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 05:55:34,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:55:34,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 05:55:34,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 05:55:34,163 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 05:55:34,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 05:55:34,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 05:55:34,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 05:55:34,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 05:55:34,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 05:55:34,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 05:55:34,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 05:55:34,164 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 5975f0f3825b3a6653676f33bd69d14e1e58fcf0306bfb5508ab91dc8951d6c4 [2025-03-08 05:55:34,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 05:55:34,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 05:55:34,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 05:55:34,432 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 05:55:34,432 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 05:55:34,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.13.cil.c [2025-03-08 05:55:35,692 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e0e6d60/57772c32c93b4a06a7f47612350b0f4d/FLAGb812aafe4 [2025-03-08 05:55:35,964 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 05:55:35,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c [2025-03-08 05:55:35,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e0e6d60/57772c32c93b4a06a7f47612350b0f4d/FLAGb812aafe4 [2025-03-08 05:55:36,254 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e0e6d60/57772c32c93b4a06a7f47612350b0f4d [2025-03-08 05:55:36,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 05:55:36,257 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 05:55:36,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 05:55:36,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 05:55:36,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 05:55:36,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad90a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36, skipping insertion in model container [2025-03-08 05:55:36,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,295 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 05:55:36,405 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c[706,719] [2025-03-08 05:55:36,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:55:36,561 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 05:55:36,570 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c[706,719] [2025-03-08 05:55:36,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:55:36,648 INFO L204 MainTranslator]: Completed translation [2025-03-08 05:55:36,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36 WrapperNode [2025-03-08 05:55:36,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 05:55:36,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 05:55:36,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 05:55:36,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 05:55:36,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,711 INFO L138 Inliner]: procedures = 54, calls = 69, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 867 [2025-03-08 05:55:36,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 05:55:36,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 05:55:36,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 05:55:36,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 05:55:36,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,722 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,736 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]. [2025-03-08 05:55:36,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,745 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 05:55:36,752 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 05:55:36,752 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 05:55:36,752 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 05:55:36,757 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (1/1) ... [2025-03-08 05:55:36,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:55:36,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:55:36,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 05:55:36,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 05:55:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 05:55:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-03-08 05:55:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-03-08 05:55:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-03-08 05:55:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-03-08 05:55:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-03-08 05:55:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-03-08 05:55:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-03-08 05:55:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-03-08 05:55:36,813 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-03-08 05:55:36,813 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-03-08 05:55:36,813 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-03-08 05:55:36,813 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-03-08 05:55:36,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 05:55:36,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 05:55:36,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 05:55:36,898 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 05:55:36,900 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 05:55:37,695 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2025-03-08 05:55:37,696 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 05:55:37,717 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 05:55:37,718 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 05:55:37,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:55:37 BoogieIcfgContainer [2025-03-08 05:55:37,719 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 05:55:37,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 05:55:37,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 05:55:37,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 05:55:37,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:55:36" (1/3) ... [2025-03-08 05:55:37,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bf58dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:55:37, skipping insertion in model container [2025-03-08 05:55:37,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:55:36" (2/3) ... [2025-03-08 05:55:37,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bf58dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:55:37, skipping insertion in model container [2025-03-08 05:55:37,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:55:37" (3/3) ... [2025-03-08 05:55:37,726 INFO L128 eAbstractionObserver]: Analyzing ICFG transmitter.13.cil.c [2025-03-08 05:55:37,739 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 05:55:37,743 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG transmitter.13.cil.c that has 7 procedures, 400 locations, 1 initial locations, 17 loop locations, and 1 error locations. [2025-03-08 05:55:37,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 05:55:37,800 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;@4d9f99b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 05:55:37,801 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 05:55:37,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 367 states have (on average 1.6212534059945505) internal successors, (595), 368 states have internal predecessors, (595), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-08 05:55:37,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:37,828 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:37,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:37,829 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:37,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:37,834 INFO L85 PathProgramCache]: Analyzing trace with hash 559522900, now seen corresponding path program 1 times [2025-03-08 05:55:37,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:37,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316268363] [2025-03-08 05:55:37,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:37,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:37,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:37,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:37,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:37,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:38,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:38,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:38,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316268363] [2025-03-08 05:55:38,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316268363] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:38,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:38,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:55:38,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883706182] [2025-03-08 05:55:38,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:38,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:55:38,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:38,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:55:38,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:55:38,455 INFO L87 Difference]: Start difference. First operand has 400 states, 367 states have (on average 1.6212534059945505) internal successors, (595), 368 states have internal predecessors, (595), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:38,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:55:38,957 INFO L93 Difference]: Finished difference Result 805 states and 1311 transitions. [2025-03-08 05:55:38,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:55:38,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:55:38,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:55:38,968 INFO L225 Difference]: With dead ends: 805 [2025-03-08 05:55:38,968 INFO L226 Difference]: Without dead ends: 422 [2025-03-08 05:55:38,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:55:38,977 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 862 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:55:38,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1263 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:55:38,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2025-03-08 05:55:39,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 395. [2025-03-08 05:55:39,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 362 states have (on average 1.5773480662983426) internal successors, (571), 363 states have internal predecessors, (571), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-08 05:55:39,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 623 transitions. [2025-03-08 05:55:39,049 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 623 transitions. Word has length 197 [2025-03-08 05:55:39,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:39,049 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 623 transitions. [2025-03-08 05:55:39,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:39,050 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 623 transitions. [2025-03-08 05:55:39,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:39,053 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:39,053 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:39,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 05:55:39,053 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:39,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:39,056 INFO L85 PathProgramCache]: Analyzing trace with hash 823219925, now seen corresponding path program 1 times [2025-03-08 05:55:39,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:39,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968939762] [2025-03-08 05:55:39,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:39,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:39,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:39,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:39,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:39,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:39,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:39,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:39,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968939762] [2025-03-08 05:55:39,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968939762] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:39,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:39,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:55:39,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981089380] [2025-03-08 05:55:39,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:39,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:55:39,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:39,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:55:39,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:55:39,342 INFO L87 Difference]: Start difference. First operand 395 states and 623 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:40,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:55:40,182 INFO L93 Difference]: Finished difference Result 1416 states and 2258 transitions. [2025-03-08 05:55:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:55:40,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:55:40,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:55:40,190 INFO L225 Difference]: With dead ends: 1416 [2025-03-08 05:55:40,191 INFO L226 Difference]: Without dead ends: 1042 [2025-03-08 05:55:40,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:55:40,192 INFO L435 NwaCegarLoop]: 808 mSDtfsCounter, 1895 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 3450 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 05:55:40,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 3450 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 05:55:40,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2025-03-08 05:55:40,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 791. [2025-03-08 05:55:40,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 727 states have (on average 1.5873452544704265) internal successors, (1154), 730 states have internal predecessors, (1154), 49 states have call successors, (49), 12 states have call predecessors, (49), 14 states have return successors, (56), 50 states have call predecessors, (56), 49 states have call successors, (56) [2025-03-08 05:55:40,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1259 transitions. [2025-03-08 05:55:40,252 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1259 transitions. Word has length 197 [2025-03-08 05:55:40,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:40,254 INFO L471 AbstractCegarLoop]: Abstraction has 791 states and 1259 transitions. [2025-03-08 05:55:40,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:40,254 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1259 transitions. [2025-03-08 05:55:40,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:40,257 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:40,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:40,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 05:55:40,258 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:40,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:40,259 INFO L85 PathProgramCache]: Analyzing trace with hash 138989620, now seen corresponding path program 1 times [2025-03-08 05:55:40,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:40,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638321045] [2025-03-08 05:55:40,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:40,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:40,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:40,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:40,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:40,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:40,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:40,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:40,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638321045] [2025-03-08 05:55:40,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638321045] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:40,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:40,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:55:40,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934757260] [2025-03-08 05:55:40,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:40,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:55:40,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:40,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:55:40,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:55:40,467 INFO L87 Difference]: Start difference. First operand 791 states and 1259 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:41,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:55:41,236 INFO L93 Difference]: Finished difference Result 2807 states and 4485 transitions. [2025-03-08 05:55:41,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:55:41,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:55:41,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:55:41,245 INFO L225 Difference]: With dead ends: 2807 [2025-03-08 05:55:41,246 INFO L226 Difference]: Without dead ends: 2039 [2025-03-08 05:55:41,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:55:41,248 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 1893 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 05:55:41,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 3315 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 05:55:41,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2025-03-08 05:55:41,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 1569. [2025-03-08 05:55:41,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1447 states have (on average 1.590186592950933) internal successors, (2301), 1454 states have internal predecessors, (2301), 91 states have call successors, (91), 24 states have call predecessors, (91), 30 states have return successors, (114), 94 states have call predecessors, (114), 91 states have call successors, (114) [2025-03-08 05:55:41,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2506 transitions. [2025-03-08 05:55:41,343 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2506 transitions. Word has length 197 [2025-03-08 05:55:41,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:41,343 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2506 transitions. [2025-03-08 05:55:41,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:41,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2506 transitions. [2025-03-08 05:55:41,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:41,347 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:41,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:41,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 05:55:41,347 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:41,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1684197643, now seen corresponding path program 1 times [2025-03-08 05:55:41,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:41,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47228623] [2025-03-08 05:55:41,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:41,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:41,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:41,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:41,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:41,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:41,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:41,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47228623] [2025-03-08 05:55:41,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47228623] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:41,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:41,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:55:41,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183684613] [2025-03-08 05:55:41,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:41,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:55:41,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:41,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:55:41,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:55:41,521 INFO L87 Difference]: Start difference. First operand 1569 states and 2506 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:42,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:55:42,301 INFO L93 Difference]: Finished difference Result 5718 states and 9206 transitions. [2025-03-08 05:55:42,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:55:42,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:55:42,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:55:42,320 INFO L225 Difference]: With dead ends: 5718 [2025-03-08 05:55:42,320 INFO L226 Difference]: Without dead ends: 4172 [2025-03-08 05:55:42,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:55:42,328 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 1888 mSDsluCounter, 2546 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 3308 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 05:55:42,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 3308 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 05:55:42,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2025-03-08 05:55:42,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 3265. [2025-03-08 05:55:42,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 3021 states have (on average 1.6070837471036081) internal successors, (4855), 3042 states have internal predecessors, (4855), 175 states have call successors, (175), 48 states have call predecessors, (175), 68 states have return successors, (254), 182 states have call predecessors, (254), 175 states have call successors, (254) [2025-03-08 05:55:42,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 5284 transitions. [2025-03-08 05:55:42,463 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 5284 transitions. Word has length 197 [2025-03-08 05:55:42,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:42,463 INFO L471 AbstractCegarLoop]: Abstraction has 3265 states and 5284 transitions. [2025-03-08 05:55:42,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:42,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 5284 transitions. [2025-03-08 05:55:42,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:42,470 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:42,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:42,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 05:55:42,470 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:42,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:42,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1859220500, now seen corresponding path program 1 times [2025-03-08 05:55:42,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:42,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590151032] [2025-03-08 05:55:42,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:42,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:42,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:42,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:42,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:42,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:42,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:42,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590151032] [2025-03-08 05:55:42,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590151032] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:42,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:42,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:55:42,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217198577] [2025-03-08 05:55:42,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:42,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:55:42,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:42,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:55:42,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:55:42,640 INFO L87 Difference]: Start difference. First operand 3265 states and 5284 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:43,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:55:43,534 INFO L93 Difference]: Finished difference Result 12081 states and 19772 transitions. [2025-03-08 05:55:43,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:55:43,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:55:43,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:55:43,568 INFO L225 Difference]: With dead ends: 12081 [2025-03-08 05:55:43,568 INFO L226 Difference]: Without dead ends: 8839 [2025-03-08 05:55:43,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:55:43,578 INFO L435 NwaCegarLoop]: 758 mSDtfsCounter, 1883 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 05:55:43,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 3287 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 05:55:43,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8839 states. [2025-03-08 05:55:43,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8839 to 7061. [2025-03-08 05:55:43,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 6555 states have (on average 1.634324942791762) internal successors, (10713), 6622 states have internal predecessors, (10713), 343 states have call successors, (343), 96 states have call predecessors, (343), 162 states have return successors, (630), 358 states have call predecessors, (630), 343 states have call successors, (630) [2025-03-08 05:55:43,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 11686 transitions. [2025-03-08 05:55:43,883 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 11686 transitions. Word has length 197 [2025-03-08 05:55:43,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:43,883 INFO L471 AbstractCegarLoop]: Abstraction has 7061 states and 11686 transitions. [2025-03-08 05:55:43,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:43,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 11686 transitions. [2025-03-08 05:55:43,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:43,894 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:43,895 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:43,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 05:55:43,895 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:43,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:43,895 INFO L85 PathProgramCache]: Analyzing trace with hash -243233003, now seen corresponding path program 1 times [2025-03-08 05:55:43,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:43,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889432805] [2025-03-08 05:55:43,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:43,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:43,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:43,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:43,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:43,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:44,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:44,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889432805] [2025-03-08 05:55:44,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889432805] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:44,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:44,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:55:44,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286648070] [2025-03-08 05:55:44,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:44,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:55:44,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:44,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:55:44,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:55:44,041 INFO L87 Difference]: Start difference. First operand 7061 states and 11686 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:45,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:55:45,062 INFO L93 Difference]: Finished difference Result 26364 states and 44270 transitions. [2025-03-08 05:55:45,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:55:45,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:55:45,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:55:45,136 INFO L225 Difference]: With dead ends: 26364 [2025-03-08 05:55:45,136 INFO L226 Difference]: Without dead ends: 19326 [2025-03-08 05:55:45,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:55:45,160 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 1878 mSDsluCounter, 2517 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1914 SdHoareTripleChecker+Valid, 3273 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 05:55:45,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1914 Valid, 3273 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 05:55:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19326 states. [2025-03-08 05:55:45,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19326 to 15813. [2025-03-08 05:55:45,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15813 states, 14729 states have (on average 1.6687487270011543) internal successors, (24579), 14942 states have internal predecessors, (24579), 679 states have call successors, (679), 192 states have call predecessors, (679), 404 states have return successors, (1766), 710 states have call predecessors, (1766), 679 states have call successors, (1766) [2025-03-08 05:55:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15813 states to 15813 states and 27024 transitions. [2025-03-08 05:55:45,824 INFO L78 Accepts]: Start accepts. Automaton has 15813 states and 27024 transitions. Word has length 197 [2025-03-08 05:55:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:45,824 INFO L471 AbstractCegarLoop]: Abstraction has 15813 states and 27024 transitions. [2025-03-08 05:55:45,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15813 states and 27024 transitions. [2025-03-08 05:55:45,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:45,839 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:45,839 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:45,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 05:55:45,840 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:45,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash -588148748, now seen corresponding path program 1 times [2025-03-08 05:55:45,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:45,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763652418] [2025-03-08 05:55:45,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:45,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:45,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:45,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:45,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:45,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:45,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:45,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763652418] [2025-03-08 05:55:45,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763652418] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:45,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:45,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:55:45,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827967656] [2025-03-08 05:55:45,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:45,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:55:45,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:45,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:55:45,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:55:45,928 INFO L87 Difference]: Start difference. First operand 15813 states and 27024 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:46,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:55:46,593 INFO L93 Difference]: Finished difference Result 36708 states and 64641 transitions. [2025-03-08 05:55:46,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:55:46,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:55:46,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:55:46,724 INFO L225 Difference]: With dead ends: 36708 [2025-03-08 05:55:46,724 INFO L226 Difference]: Without dead ends: 20916 [2025-03-08 05:55:46,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:55:46,763 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 850 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:55:46,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 1213 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:55:46,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20916 states. [2025-03-08 05:55:47,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20916 to 15813. [2025-03-08 05:55:47,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15813 states, 14729 states have (on average 1.666508249032521) internal successors, (24546), 14942 states have internal predecessors, (24546), 679 states have call successors, (679), 192 states have call predecessors, (679), 404 states have return successors, (1766), 710 states have call predecessors, (1766), 679 states have call successors, (1766) [2025-03-08 05:55:47,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15813 states to 15813 states and 26991 transitions. [2025-03-08 05:55:47,489 INFO L78 Accepts]: Start accepts. Automaton has 15813 states and 26991 transitions. Word has length 197 [2025-03-08 05:55:47,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:47,489 INFO L471 AbstractCegarLoop]: Abstraction has 15813 states and 26991 transitions. [2025-03-08 05:55:47,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:47,491 INFO L276 IsEmpty]: Start isEmpty. Operand 15813 states and 26991 transitions. [2025-03-08 05:55:47,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:47,510 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:47,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:47,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 05:55:47,510 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:47,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:47,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1292011723, now seen corresponding path program 1 times [2025-03-08 05:55:47,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:47,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190258375] [2025-03-08 05:55:47,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:47,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:47,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:47,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:47,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:47,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:47,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:47,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:47,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190258375] [2025-03-08 05:55:47,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190258375] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:47,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:47,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:55:47,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362533029] [2025-03-08 05:55:47,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:47,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:55:47,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:47,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:55:47,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:55:47,668 INFO L87 Difference]: Start difference. First operand 15813 states and 26991 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:55:49,065 INFO L93 Difference]: Finished difference Result 58845 states and 102246 transitions. [2025-03-08 05:55:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:55:49,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:55:49,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:55:49,296 INFO L225 Difference]: With dead ends: 58845 [2025-03-08 05:55:49,296 INFO L226 Difference]: Without dead ends: 43055 [2025-03-08 05:55:49,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:55:49,331 INFO L435 NwaCegarLoop]: 746 mSDtfsCounter, 1862 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 05:55:49,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1898 Valid, 3219 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 05:55:49,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43055 states. [2025-03-08 05:55:50,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43055 to 36153. [2025-03-08 05:55:50,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36153 states, 33751 states have (on average 1.7011644099434091) internal successors, (57416), 34418 states have internal predecessors, (57416), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 1050 states have return successors, (5574), 1414 states have call predecessors, (5574), 1351 states have call successors, (5574) [2025-03-08 05:55:50,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36153 states to 36153 states and 64341 transitions. [2025-03-08 05:55:50,460 INFO L78 Accepts]: Start accepts. Automaton has 36153 states and 64341 transitions. Word has length 197 [2025-03-08 05:55:50,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:50,461 INFO L471 AbstractCegarLoop]: Abstraction has 36153 states and 64341 transitions. [2025-03-08 05:55:50,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:50,462 INFO L276 IsEmpty]: Start isEmpty. Operand 36153 states and 64341 transitions. [2025-03-08 05:55:50,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:50,499 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:50,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:50,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 05:55:50,500 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:50,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:50,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2041330358, now seen corresponding path program 1 times [2025-03-08 05:55:50,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:50,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791844287] [2025-03-08 05:55:50,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:50,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:50,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:50,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:50,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:50,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:50,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:50,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791844287] [2025-03-08 05:55:50,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791844287] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:50,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:50,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:55:50,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408876148] [2025-03-08 05:55:50,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:50,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:55:50,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:50,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:55:50,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:55:50,768 INFO L87 Difference]: Start difference. First operand 36153 states and 64341 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:55:52,334 INFO L93 Difference]: Finished difference Result 85407 states and 157055 transitions. [2025-03-08 05:55:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:55:52,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:55:52,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:55:52,568 INFO L225 Difference]: With dead ends: 85407 [2025-03-08 05:55:52,568 INFO L226 Difference]: Without dead ends: 49275 [2025-03-08 05:55:52,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:55:52,654 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 845 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 05:55:52,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 1193 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 05:55:52,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49275 states. [2025-03-08 05:55:53,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49275 to 36153. [2025-03-08 05:55:54,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36153 states, 33751 states have (on average 1.6992385410802644) internal successors, (57351), 34418 states have internal predecessors, (57351), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 1050 states have return successors, (5574), 1414 states have call predecessors, (5574), 1351 states have call successors, (5574) [2025-03-08 05:55:54,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36153 states to 36153 states and 64276 transitions. [2025-03-08 05:55:54,165 INFO L78 Accepts]: Start accepts. Automaton has 36153 states and 64276 transitions. Word has length 197 [2025-03-08 05:55:54,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:54,165 INFO L471 AbstractCegarLoop]: Abstraction has 36153 states and 64276 transitions. [2025-03-08 05:55:54,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand 36153 states and 64276 transitions. [2025-03-08 05:55:54,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:54,193 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:54,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:54,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 05:55:54,194 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:54,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:54,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1179026197, now seen corresponding path program 1 times [2025-03-08 05:55:54,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:54,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798388909] [2025-03-08 05:55:54,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:54,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:54,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:54,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:54,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:54,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:54,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:54,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798388909] [2025-03-08 05:55:54,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798388909] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:54,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:54,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:55:54,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818465234] [2025-03-08 05:55:54,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:54,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:55:54,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:54,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:55:54,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:55:54,305 INFO L87 Difference]: Start difference. First operand 36153 states and 64276 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:55,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:55:55,850 INFO L93 Difference]: Finished difference Result 84678 states and 155467 transitions. [2025-03-08 05:55:55,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:55:55,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:55:55,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:55:56,084 INFO L225 Difference]: With dead ends: 84678 [2025-03-08 05:55:56,084 INFO L226 Difference]: Without dead ends: 48546 [2025-03-08 05:55:56,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:55:56,196 INFO L435 NwaCegarLoop]: 447 mSDtfsCounter, 842 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 05:55:56,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 1185 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 05:55:56,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48546 states. [2025-03-08 05:55:58,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48546 to 36153. [2025-03-08 05:55:58,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36153 states, 33751 states have (on average 1.6973126722171195) internal successors, (57286), 34418 states have internal predecessors, (57286), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 1050 states have return successors, (5574), 1414 states have call predecessors, (5574), 1351 states have call successors, (5574) [2025-03-08 05:55:58,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36153 states to 36153 states and 64211 transitions. [2025-03-08 05:55:58,810 INFO L78 Accepts]: Start accepts. Automaton has 36153 states and 64211 transitions. Word has length 197 [2025-03-08 05:55:58,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:58,811 INFO L471 AbstractCegarLoop]: Abstraction has 36153 states and 64211 transitions. [2025-03-08 05:55:58,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:58,811 INFO L276 IsEmpty]: Start isEmpty. Operand 36153 states and 64211 transitions. [2025-03-08 05:55:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:55:58,834 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:58,834 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:55:58,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 05:55:58,835 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:58,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1428304598, now seen corresponding path program 1 times [2025-03-08 05:55:58,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:58,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132027268] [2025-03-08 05:55:58,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:58,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:58,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:55:58,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:55:58,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:58,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:58,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:58,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:58,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132027268] [2025-03-08 05:55:58,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132027268] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:58,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:58,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:55:58,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752242122] [2025-03-08 05:55:58,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:58,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:55:58,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:58,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:55:58,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:55:58,942 INFO L87 Difference]: Start difference. First operand 36153 states and 64211 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:56:00,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:56:00,585 INFO L93 Difference]: Finished difference Result 83949 states and 153879 transitions. [2025-03-08 05:56:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:56:00,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:56:00,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:56:00,795 INFO L225 Difference]: With dead ends: 83949 [2025-03-08 05:56:00,795 INFO L226 Difference]: Without dead ends: 47817 [2025-03-08 05:56:00,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:56:00,897 INFO L435 NwaCegarLoop]: 444 mSDtfsCounter, 839 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 05:56:00,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 1177 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 05:56:00,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47817 states. [2025-03-08 05:56:02,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47817 to 36153. [2025-03-08 05:56:02,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36153 states, 33751 states have (on average 1.6953868033539747) internal successors, (57221), 34418 states have internal predecessors, (57221), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 1050 states have return successors, (5574), 1414 states have call predecessors, (5574), 1351 states have call successors, (5574) [2025-03-08 05:56:02,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36153 states to 36153 states and 64146 transitions. [2025-03-08 05:56:02,705 INFO L78 Accepts]: Start accepts. Automaton has 36153 states and 64146 transitions. Word has length 197 [2025-03-08 05:56:02,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:56:02,706 INFO L471 AbstractCegarLoop]: Abstraction has 36153 states and 64146 transitions. [2025-03-08 05:56:02,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:56:02,706 INFO L276 IsEmpty]: Start isEmpty. Operand 36153 states and 64146 transitions. [2025-03-08 05:56:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:56:02,727 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:56:02,727 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:56:02,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 05:56:02,727 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:56:02,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:56:02,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1713440501, now seen corresponding path program 1 times [2025-03-08 05:56:02,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:56:02,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053212819] [2025-03-08 05:56:02,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:56:02,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:56:02,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:56:02,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:56:02,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:56:02,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:56:02,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:56:02,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:56:02,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053212819] [2025-03-08 05:56:02,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053212819] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:56:02,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:56:02,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:56:02,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114754105] [2025-03-08 05:56:02,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:56:02,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:56:02,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:56:02,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:56:02,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:56:02,826 INFO L87 Difference]: Start difference. First operand 36153 states and 64146 transitions. Second operand has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:56:05,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:56:05,802 INFO L93 Difference]: Finished difference Result 132801 states and 241392 transitions. [2025-03-08 05:56:05,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:56:05,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 197 [2025-03-08 05:56:05,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:56:06,171 INFO L225 Difference]: With dead ends: 132801 [2025-03-08 05:56:06,171 INFO L226 Difference]: Without dead ends: 96671 [2025-03-08 05:56:06,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:56:06,271 INFO L435 NwaCegarLoop]: 730 mSDtfsCounter, 1833 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 05:56:06,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1869 Valid, 3138 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 05:56:06,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96671 states. [2025-03-08 05:56:09,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96671 to 83149. [2025-03-08 05:56:09,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83149 states, 77625 states have (on average 1.7251014492753622) internal successors, (133911), 79686 states have internal predecessors, (133911), 2695 states have call successors, (2695), 768 states have call predecessors, (2695), 2828 states have return successors, (19334), 2822 states have call predecessors, (19334), 2695 states have call successors, (19334) [2025-03-08 05:56:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83149 states to 83149 states and 155940 transitions. [2025-03-08 05:56:09,845 INFO L78 Accepts]: Start accepts. Automaton has 83149 states and 155940 transitions. Word has length 197 [2025-03-08 05:56:09,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:56:09,846 INFO L471 AbstractCegarLoop]: Abstraction has 83149 states and 155940 transitions. [2025-03-08 05:56:09,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.166666666666668) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:56:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand 83149 states and 155940 transitions. [2025-03-08 05:56:09,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-03-08 05:56:09,894 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:56:09,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:56:09,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 05:56:09,894 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:56:09,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:56:09,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1879592202, now seen corresponding path program 1 times [2025-03-08 05:56:09,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:56:09,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140366061] [2025-03-08 05:56:09,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:56:09,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:56:09,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-03-08 05:56:09,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-03-08 05:56:09,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:56:09,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:56:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:56:09,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:56:09,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140366061] [2025-03-08 05:56:09,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140366061] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:56:09,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:56:09,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:56:09,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177249033] [2025-03-08 05:56:09,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:56:09,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:56:09,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:56:09,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:56:09,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:56:09,971 INFO L87 Difference]: Start difference. First operand 83149 states and 155940 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)