./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.10.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.10.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 c68befe0cb772d649d152823cc17c89d77797d55cc04257d4beaaad2b518a7a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:17:32,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:17:32,564 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:17:32,567 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:17:32,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:17:32,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:17:32,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:17:32,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:17:32,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:17:32,611 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:17:32,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:17:32,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:17:32,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:17:32,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:17:32,615 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:17:32,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:17:32,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:17:32,615 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:17:32,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:17:32,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:17:32,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:17:32,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:17:32,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:17:32,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:17:32,621 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:17:32,621 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:17:32,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:17:32,621 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:17:32,621 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:17:32,622 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:17:32,622 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:17:32,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:17:32,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:17:32,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:17:32,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:17:32,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:17:32,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:17:32,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:17:32,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:17:32,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:17:32,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:17:32,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:17:32,625 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c68befe0cb772d649d152823cc17c89d77797d55cc04257d4beaaad2b518a7a0 [2024-10-24 01:17:32,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:17:32,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:17:32,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:17:32,909 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:17:32,910 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:17:32,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.10.cil.c [2024-10-24 01:17:34,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:17:34,596 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:17:34,597 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.10.cil.c [2024-10-24 01:17:34,609 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a9159af/79ad598c35654d73badf3e3a9d728c5d/FLAGf542c12a8 [2024-10-24 01:17:34,938 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a9159af/79ad598c35654d73badf3e3a9d728c5d [2024-10-24 01:17:34,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:17:34,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:17:34,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:17:34,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:17:34,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:17:34,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:34" (1/1) ... [2024-10-24 01:17:34,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1383617b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:34, skipping insertion in model container [2024-10-24 01:17:34,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:17:34" (1/1) ... [2024-10-24 01:17:35,004 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:17:35,149 WARN L248 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.10.cil.c[706,719] [2024-10-24 01:17:35,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:17:35,275 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:17:35,288 WARN L248 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.10.cil.c[706,719] [2024-10-24 01:17:35,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:17:35,370 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:17:35,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35 WrapperNode [2024-10-24 01:17:35,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:17:35,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:17:35,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:17:35,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:17:35,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,435 INFO L138 Inliner]: procedures = 48, calls = 60, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 741 [2024-10-24 01:17:35,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:17:35,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:17:35,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:17:35,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:17:35,447 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,451 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,474 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]. [2024-10-24 01:17:35,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:17:35,519 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:17:35,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:17:35,519 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:17:35,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (1/1) ... [2024-10-24 01:17:35,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:17:35,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:17:35,561 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) [2024-10-24 01:17:35,564 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 [2024-10-24 01:17:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:17:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 01:17:35,609 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 01:17:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 01:17:35,609 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 01:17:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 01:17:35,610 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 01:17:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 01:17:35,611 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 01:17:35,611 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 01:17:35,611 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 01:17:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:17:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 01:17:35,612 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 01:17:35,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:17:35,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:17:35,740 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:17:35,742 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:17:36,609 INFO L? ?]: Removed 85 outVars from TransFormulas that were not future-live. [2024-10-24 01:17:36,609 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:17:36,676 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:17:36,680 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-24 01:17:36,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:17:36 BoogieIcfgContainer [2024-10-24 01:17:36,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:17:36,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:17:36,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:17:36,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:17:36,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:17:34" (1/3) ... [2024-10-24 01:17:36,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330a828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:17:36, skipping insertion in model container [2024-10-24 01:17:36,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:17:35" (2/3) ... [2024-10-24 01:17:36,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330a828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:17:36, skipping insertion in model container [2024-10-24 01:17:36,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:17:36" (3/3) ... [2024-10-24 01:17:36,691 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.10.cil.c [2024-10-24 01:17:36,707 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:17:36,707 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:17:36,786 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:17:36,794 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;@52a64998, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:17:36,794 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:17:36,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 297 states, 266 states have (on average 1.7330827067669172) internal successors, (461), 268 states have internal predecessors, (461), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 01:17:36,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:17:36,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:36,822 INFO L215 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] [2024-10-24 01:17:36,822 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:36,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:36,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1198608333, now seen corresponding path program 1 times [2024-10-24 01:17:36,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:36,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434138504] [2024-10-24 01:17:36,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:36,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:17:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:17:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:17:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:17:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:37,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:37,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:37,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434138504] [2024-10-24 01:17:37,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434138504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:37,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:37,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:17:37,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255096010] [2024-10-24 01:17:37,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:37,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:17:37,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:37,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:17:37,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:17:37,573 INFO L87 Difference]: Start difference. First operand has 297 states, 266 states have (on average 1.7330827067669172) internal successors, (461), 268 states have internal predecessors, (461), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:39,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:39,275 INFO L93 Difference]: Finished difference Result 696 states and 1196 transitions. [2024-10-24 01:17:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:17:39,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 147 [2024-10-24 01:17:39,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:39,296 INFO L225 Difference]: With dead ends: 696 [2024-10-24 01:17:39,298 INFO L226 Difference]: Without dead ends: 403 [2024-10-24 01:17:39,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:17:39,309 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 820 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:39,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 529 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 01:17:39,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-10-24 01:17:39,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 295. [2024-10-24 01:17:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 265 states have (on average 1.618867924528302) internal successors, (429), 266 states have internal predecessors, (429), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 01:17:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 475 transitions. [2024-10-24 01:17:39,397 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 475 transitions. Word has length 147 [2024-10-24 01:17:39,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:39,398 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 475 transitions. [2024-10-24 01:17:39,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:39,399 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 475 transitions. [2024-10-24 01:17:39,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:17:39,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:39,405 INFO L215 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] [2024-10-24 01:17:39,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:17:39,405 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:39,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:39,406 INFO L85 PathProgramCache]: Analyzing trace with hash 787997967, now seen corresponding path program 1 times [2024-10-24 01:17:39,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:39,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028559668] [2024-10-24 01:17:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:39,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:39,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:17:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:39,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:17:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:39,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:17:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:39,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:17:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:39,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:39,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028559668] [2024-10-24 01:17:39,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028559668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:39,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:39,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:17:39,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766423613] [2024-10-24 01:17:39,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:39,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:17:39,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:39,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:17:39,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:17:39,730 INFO L87 Difference]: Start difference. First operand 295 states and 475 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:41,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:41,140 INFO L93 Difference]: Finished difference Result 684 states and 1117 transitions. [2024-10-24 01:17:41,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:17:41,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 147 [2024-10-24 01:17:41,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:41,147 INFO L225 Difference]: With dead ends: 684 [2024-10-24 01:17:41,148 INFO L226 Difference]: Without dead ends: 403 [2024-10-24 01:17:41,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:17:41,153 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 809 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:41,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 524 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 01:17:41,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-10-24 01:17:41,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 295. [2024-10-24 01:17:41,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 265 states have (on average 1.6150943396226416) internal successors, (428), 266 states have internal predecessors, (428), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 01:17:41,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 474 transitions. [2024-10-24 01:17:41,198 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 474 transitions. Word has length 147 [2024-10-24 01:17:41,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:41,198 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 474 transitions. [2024-10-24 01:17:41,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:41,199 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 474 transitions. [2024-10-24 01:17:41,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:17:41,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:41,201 INFO L215 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] [2024-10-24 01:17:41,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:17:41,201 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:41,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:41,202 INFO L85 PathProgramCache]: Analyzing trace with hash 499178577, now seen corresponding path program 1 times [2024-10-24 01:17:41,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:41,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224838768] [2024-10-24 01:17:41,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:41,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:17:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:17:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:17:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:17:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:41,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:41,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224838768] [2024-10-24 01:17:41,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224838768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:41,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:41,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:17:41,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304429162] [2024-10-24 01:17:41,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:41,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:17:41,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:41,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:17:41,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:17:41,544 INFO L87 Difference]: Start difference. First operand 295 states and 474 transitions. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:43,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:43,934 INFO L93 Difference]: Finished difference Result 1083 states and 1793 transitions. [2024-10-24 01:17:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:17:43,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:17:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:43,940 INFO L225 Difference]: With dead ends: 1083 [2024-10-24 01:17:43,940 INFO L226 Difference]: Without dead ends: 804 [2024-10-24 01:17:43,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:43,942 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 1231 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:43,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 885 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 01:17:43,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2024-10-24 01:17:43,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 589. [2024-10-24 01:17:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 534 states have (on average 1.6235955056179776) internal successors, (867), 536 states have internal predecessors, (867), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2024-10-24 01:17:43,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 952 transitions. [2024-10-24 01:17:43,998 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 952 transitions. Word has length 147 [2024-10-24 01:17:43,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:43,998 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 952 transitions. [2024-10-24 01:17:43,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:43,999 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 952 transitions. [2024-10-24 01:17:44,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:17:44,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:44,001 INFO L215 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] [2024-10-24 01:17:44,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:17:44,001 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:44,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:44,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2039614860, now seen corresponding path program 1 times [2024-10-24 01:17:44,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:44,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300503738] [2024-10-24 01:17:44,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:44,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:17:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:17:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:17:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:17:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:44,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:44,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:44,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300503738] [2024-10-24 01:17:44,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300503738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:44,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:44,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:44,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299384341] [2024-10-24 01:17:44,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:44,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:44,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:44,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:44,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:44,293 INFO L87 Difference]: Start difference. First operand 589 states and 952 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:47,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:47,986 INFO L93 Difference]: Finished difference Result 1923 states and 3157 transitions. [2024-10-24 01:17:47,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:47,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:17:47,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:47,998 INFO L225 Difference]: With dead ends: 1923 [2024-10-24 01:17:47,999 INFO L226 Difference]: Without dead ends: 1350 [2024-10-24 01:17:48,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:48,003 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 1349 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 3886 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 3943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:48,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 1700 Invalid, 3943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3886 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 01:17:48,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2024-10-24 01:17:48,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 861. [2024-10-24 01:17:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 781 states have (on average 1.6158770806658131) internal successors, (1262), 784 states have internal predecessors, (1262), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-10-24 01:17:48,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1385 transitions. [2024-10-24 01:17:48,071 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1385 transitions. Word has length 147 [2024-10-24 01:17:48,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:48,072 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1385 transitions. [2024-10-24 01:17:48,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:48,072 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1385 transitions. [2024-10-24 01:17:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:17:48,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:48,075 INFO L215 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] [2024-10-24 01:17:48,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:17:48,075 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:48,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:48,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1670580786, now seen corresponding path program 1 times [2024-10-24 01:17:48,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:48,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201547403] [2024-10-24 01:17:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:48,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:48,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:48,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:17:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:48,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:17:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:48,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:17:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:48,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:17:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:48,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:48,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:48,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201547403] [2024-10-24 01:17:48,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201547403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:48,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:48,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:48,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813944427] [2024-10-24 01:17:48,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:48,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:48,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:48,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:48,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:48,357 INFO L87 Difference]: Start difference. First operand 861 states and 1385 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:51,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:51,653 INFO L93 Difference]: Finished difference Result 2965 states and 4856 transitions. [2024-10-24 01:17:51,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:51,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:17:51,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:51,664 INFO L225 Difference]: With dead ends: 2965 [2024-10-24 01:17:51,664 INFO L226 Difference]: Without dead ends: 2120 [2024-10-24 01:17:51,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:51,670 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 1353 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 3877 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 3936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:51,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 1698 Invalid, 3936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3877 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 01:17:51,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2024-10-24 01:17:51,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1406. [2024-10-24 01:17:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1276 states have (on average 1.608934169278997) internal successors, (2053), 1281 states have internal predecessors, (2053), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-10-24 01:17:51,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 2256 transitions. [2024-10-24 01:17:51,782 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 2256 transitions. Word has length 147 [2024-10-24 01:17:51,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:51,783 INFO L471 AbstractCegarLoop]: Abstraction has 1406 states and 2256 transitions. [2024-10-24 01:17:51,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:51,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 2256 transitions. [2024-10-24 01:17:51,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:17:51,786 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:51,786 INFO L215 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] [2024-10-24 01:17:51,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:17:51,786 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:51,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:51,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1236075188, now seen corresponding path program 1 times [2024-10-24 01:17:51,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:51,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769187296] [2024-10-24 01:17:51,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:51,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:51,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:51,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:17:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:17:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:17:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:17:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:52,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:52,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769187296] [2024-10-24 01:17:52,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769187296] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:52,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:52,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:52,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536502157] [2024-10-24 01:17:52,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:52,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:52,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:52,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:52,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:52,059 INFO L87 Difference]: Start difference. First operand 1406 states and 2256 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:53,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:53,601 INFO L93 Difference]: Finished difference Result 3366 states and 5499 transitions. [2024-10-24 01:17:53,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:53,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:17:53,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:53,613 INFO L225 Difference]: With dead ends: 3366 [2024-10-24 01:17:53,613 INFO L226 Difference]: Without dead ends: 1976 [2024-10-24 01:17:53,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:53,619 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 906 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:53,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 860 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 01:17:53,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2024-10-24 01:17:53,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1406. [2024-10-24 01:17:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1276 states have (on average 1.6050156739811912) internal successors, (2048), 1281 states have internal predecessors, (2048), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-10-24 01:17:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 2251 transitions. [2024-10-24 01:17:53,729 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 2251 transitions. Word has length 147 [2024-10-24 01:17:53,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:53,729 INFO L471 AbstractCegarLoop]: Abstraction has 1406 states and 2251 transitions. [2024-10-24 01:17:53,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:53,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 2251 transitions. [2024-10-24 01:17:53,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:17:53,732 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:53,732 INFO L215 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] [2024-10-24 01:17:53,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:17:53,732 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:53,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:53,733 INFO L85 PathProgramCache]: Analyzing trace with hash 529478582, now seen corresponding path program 1 times [2024-10-24 01:17:53,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:53,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206153017] [2024-10-24 01:17:53,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:53,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:53,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:53,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:17:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:53,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:17:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:54,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:17:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:54,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:17:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:54,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:54,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206153017] [2024-10-24 01:17:54,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206153017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:54,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:54,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:54,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510405814] [2024-10-24 01:17:54,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:54,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:54,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:54,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:54,023 INFO L87 Difference]: Start difference. First operand 1406 states and 2251 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:55,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:55,549 INFO L93 Difference]: Finished difference Result 3360 states and 5472 transitions. [2024-10-24 01:17:55,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:55,550 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:17:55,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:55,561 INFO L225 Difference]: With dead ends: 3360 [2024-10-24 01:17:55,561 INFO L226 Difference]: Without dead ends: 1970 [2024-10-24 01:17:55,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:55,566 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 904 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:55,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 860 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 01:17:55,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2024-10-24 01:17:55,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1406. [2024-10-24 01:17:55,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1276 states have (on average 1.6010971786833856) internal successors, (2043), 1281 states have internal predecessors, (2043), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-10-24 01:17:55,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 2246 transitions. [2024-10-24 01:17:55,707 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 2246 transitions. Word has length 147 [2024-10-24 01:17:55,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:55,709 INFO L471 AbstractCegarLoop]: Abstraction has 1406 states and 2246 transitions. [2024-10-24 01:17:55,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:55,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 2246 transitions. [2024-10-24 01:17:55,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:17:55,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:55,712 INFO L215 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] [2024-10-24 01:17:55,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:17:55,712 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:55,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:55,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1476516468, now seen corresponding path program 1 times [2024-10-24 01:17:55,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:55,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556834274] [2024-10-24 01:17:55,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:55,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:17:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:17:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:17:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:17:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:55,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:55,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556834274] [2024-10-24 01:17:55,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556834274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:55,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:55,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:55,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765919493] [2024-10-24 01:17:55,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:55,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:55,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:55,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:55,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:55,976 INFO L87 Difference]: Start difference. First operand 1406 states and 2246 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:59,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:59,497 INFO L93 Difference]: Finished difference Result 4949 states and 8023 transitions. [2024-10-24 01:17:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:59,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:17:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:59,511 INFO L225 Difference]: With dead ends: 4949 [2024-10-24 01:17:59,511 INFO L226 Difference]: Without dead ends: 3559 [2024-10-24 01:17:59,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:59,516 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 1335 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 3799 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 3858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:59,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 1698 Invalid, 3858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3799 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 01:17:59,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3559 states. [2024-10-24 01:17:59,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3559 to 2512. [2024-10-24 01:17:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2512 states, 2282 states have (on average 1.5946538124452234) internal successors, (3639), 2291 states have internal predecessors, (3639), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-10-24 01:17:59,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2512 states to 2512 states and 4008 transitions. [2024-10-24 01:17:59,681 INFO L78 Accepts]: Start accepts. Automaton has 2512 states and 4008 transitions. Word has length 147 [2024-10-24 01:17:59,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:59,681 INFO L471 AbstractCegarLoop]: Abstraction has 2512 states and 4008 transitions. [2024-10-24 01:17:59,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:59,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2512 states and 4008 transitions. [2024-10-24 01:17:59,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:17:59,685 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:59,685 INFO L215 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] [2024-10-24 01:17:59,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:17:59,686 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:59,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:59,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1956617226, now seen corresponding path program 1 times [2024-10-24 01:17:59,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:59,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16010711] [2024-10-24 01:17:59,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:59,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:17:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:17:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:17:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:17:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:59,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:59,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16010711] [2024-10-24 01:17:59,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16010711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:59,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:59,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:59,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817107908] [2024-10-24 01:17:59,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:59,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:59,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:59,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:59,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:59,907 INFO L87 Difference]: Start difference. First operand 2512 states and 4008 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:01,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:01,538 INFO L93 Difference]: Finished difference Result 5940 states and 9627 transitions. [2024-10-24 01:18:01,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:01,539 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:18:01,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:01,554 INFO L225 Difference]: With dead ends: 5940 [2024-10-24 01:18:01,555 INFO L226 Difference]: Without dead ends: 3444 [2024-10-24 01:18:01,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:01,562 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 903 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:01,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 860 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 01:18:01,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3444 states. [2024-10-24 01:18:01,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3444 to 2512. [2024-10-24 01:18:01,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2512 states, 2282 states have (on average 1.5907099035933392) internal successors, (3630), 2291 states have internal predecessors, (3630), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-10-24 01:18:01,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2512 states to 2512 states and 3999 transitions. [2024-10-24 01:18:01,755 INFO L78 Accepts]: Start accepts. Automaton has 2512 states and 3999 transitions. Word has length 147 [2024-10-24 01:18:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:01,756 INFO L471 AbstractCegarLoop]: Abstraction has 2512 states and 3999 transitions. [2024-10-24 01:18:01,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2512 states and 3999 transitions. [2024-10-24 01:18:01,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:18:01,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:01,760 INFO L215 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] [2024-10-24 01:18:01,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:18:01,760 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:01,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:01,761 INFO L85 PathProgramCache]: Analyzing trace with hash 287941172, now seen corresponding path program 1 times [2024-10-24 01:18:01,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:01,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387082196] [2024-10-24 01:18:01,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:01,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:18:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:18:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:18:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:18:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:01,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:01,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:01,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387082196] [2024-10-24 01:18:01,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387082196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:01,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:01,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:01,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973960407] [2024-10-24 01:18:01,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:01,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:01,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:01,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:01,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:01,993 INFO L87 Difference]: Start difference. First operand 2512 states and 3999 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:05,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:05,453 INFO L93 Difference]: Finished difference Result 8943 states and 14427 transitions. [2024-10-24 01:18:05,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:18:05,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:18:05,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:05,479 INFO L225 Difference]: With dead ends: 8943 [2024-10-24 01:18:05,479 INFO L226 Difference]: Without dead ends: 6447 [2024-10-24 01:18:05,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:18:05,487 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 1327 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 3761 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 3820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:05,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 1698 Invalid, 3820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3761 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 01:18:05,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6447 states. [2024-10-24 01:18:05,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6447 to 4734. [2024-10-24 01:18:05,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4734 states, 4304 states have (on average 1.5850371747211895) internal successors, (6822), 4321 states have internal predecessors, (6822), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2024-10-24 01:18:05,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4734 states to 4734 states and 7541 transitions. [2024-10-24 01:18:05,877 INFO L78 Accepts]: Start accepts. Automaton has 4734 states and 7541 transitions. Word has length 147 [2024-10-24 01:18:05,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:05,877 INFO L471 AbstractCegarLoop]: Abstraction has 4734 states and 7541 transitions. [2024-10-24 01:18:05,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:05,878 INFO L276 IsEmpty]: Start isEmpty. Operand 4734 states and 7541 transitions. [2024-10-24 01:18:05,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:18:05,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:05,885 INFO L215 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] [2024-10-24 01:18:05,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:18:05,885 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:05,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:05,886 INFO L85 PathProgramCache]: Analyzing trace with hash 775988278, now seen corresponding path program 1 times [2024-10-24 01:18:05,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:05,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356917656] [2024-10-24 01:18:05,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:05,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:05,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:18:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:18:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:18:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:18:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:06,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:06,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:06,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356917656] [2024-10-24 01:18:06,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356917656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:06,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:06,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:06,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261193299] [2024-10-24 01:18:06,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:06,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:06,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:06,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:06,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:06,094 INFO L87 Difference]: Start difference. First operand 4734 states and 7541 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:09,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:09,580 INFO L93 Difference]: Finished difference Result 16947 states and 27367 transitions. [2024-10-24 01:18:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:18:09,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:18:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:09,689 INFO L225 Difference]: With dead ends: 16947 [2024-10-24 01:18:09,689 INFO L226 Difference]: Without dead ends: 12229 [2024-10-24 01:18:09,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:18:09,703 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 1326 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 3748 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 3807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:09,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1698 Invalid, 3807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3748 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 01:18:09,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12229 states. [2024-10-24 01:18:10,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12229 to 9191. [2024-10-24 01:18:10,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9191 states, 8361 states have (on average 1.5816289917473987) internal successors, (13224), 8394 states have internal predecessors, (13224), 599 states have call successors, (599), 198 states have call predecessors, (599), 230 states have return successors, (874), 630 states have call predecessors, (874), 599 states have call successors, (874) [2024-10-24 01:18:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9191 states to 9191 states and 14697 transitions. [2024-10-24 01:18:10,301 INFO L78 Accepts]: Start accepts. Automaton has 9191 states and 14697 transitions. Word has length 147 [2024-10-24 01:18:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:10,301 INFO L471 AbstractCegarLoop]: Abstraction has 9191 states and 14697 transitions. [2024-10-24 01:18:10,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:10,302 INFO L276 IsEmpty]: Start isEmpty. Operand 9191 states and 14697 transitions. [2024-10-24 01:18:10,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:18:10,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:10,315 INFO L215 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] [2024-10-24 01:18:10,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:18:10,315 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:10,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:10,316 INFO L85 PathProgramCache]: Analyzing trace with hash -316646924, now seen corresponding path program 1 times [2024-10-24 01:18:10,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:10,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792387764] [2024-10-24 01:18:10,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:10,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:18:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:18:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:18:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:18:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:10,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:10,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792387764] [2024-10-24 01:18:10,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792387764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:10,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:10,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:10,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196200957] [2024-10-24 01:18:10,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:10,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:10,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:10,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:10,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:10,536 INFO L87 Difference]: Start difference. First operand 9191 states and 14697 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:14,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:14,657 INFO L93 Difference]: Finished difference Result 32954 states and 53437 transitions. [2024-10-24 01:18:14,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:18:14,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:18:14,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:14,741 INFO L225 Difference]: With dead ends: 32954 [2024-10-24 01:18:14,741 INFO L226 Difference]: Without dead ends: 23779 [2024-10-24 01:18:14,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:18:14,774 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 1331 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 3730 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 3789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:14,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1347 Valid, 1698 Invalid, 3789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3730 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 01:18:14,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23779 states. [2024-10-24 01:18:16,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23779 to 18136. [2024-10-24 01:18:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18136 states, 16506 states have (on average 1.5796679995153278) internal successors, (26074), 16571 states have internal predecessors, (26074), 1175 states have call successors, (1175), 390 states have call predecessors, (1175), 454 states have return successors, (1968), 1238 states have call predecessors, (1968), 1175 states have call successors, (1968) [2024-10-24 01:18:16,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18136 states to 18136 states and 29217 transitions. [2024-10-24 01:18:16,134 INFO L78 Accepts]: Start accepts. Automaton has 18136 states and 29217 transitions. Word has length 147 [2024-10-24 01:18:16,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:16,135 INFO L471 AbstractCegarLoop]: Abstraction has 18136 states and 29217 transitions. [2024-10-24 01:18:16,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:16,136 INFO L276 IsEmpty]: Start isEmpty. Operand 18136 states and 29217 transitions. [2024-10-24 01:18:16,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:18:16,164 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:16,165 INFO L215 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] [2024-10-24 01:18:16,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:18:16,165 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:16,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:16,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1598819210, now seen corresponding path program 1 times [2024-10-24 01:18:16,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:16,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57172430] [2024-10-24 01:18:16,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:16,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:16,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:16,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:18:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:16,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:18:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:16,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:18:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:16,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:18:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:16,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:16,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:16,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57172430] [2024-10-24 01:18:16,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57172430] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:16,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:16,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:16,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035898432] [2024-10-24 01:18:16,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:16,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:16,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:16,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:16,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:16,363 INFO L87 Difference]: Start difference. First operand 18136 states and 29217 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:18,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:18,707 INFO L93 Difference]: Finished difference Result 41986 states and 68822 transitions. [2024-10-24 01:18:18,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:18:18,708 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:18:18,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:18,806 INFO L225 Difference]: With dead ends: 41986 [2024-10-24 01:18:18,806 INFO L226 Difference]: Without dead ends: 23866 [2024-10-24 01:18:18,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:18:18,855 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 906 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:18,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 859 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 01:18:18,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23866 states. [2024-10-24 01:18:20,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23866 to 18136. [2024-10-24 01:18:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18136 states, 16506 states have (on average 1.5757300375620986) internal successors, (26009), 16571 states have internal predecessors, (26009), 1175 states have call successors, (1175), 390 states have call predecessors, (1175), 454 states have return successors, (1968), 1238 states have call predecessors, (1968), 1175 states have call successors, (1968) [2024-10-24 01:18:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18136 states to 18136 states and 29152 transitions. [2024-10-24 01:18:20,498 INFO L78 Accepts]: Start accepts. Automaton has 18136 states and 29152 transitions. Word has length 147 [2024-10-24 01:18:20,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:20,500 INFO L471 AbstractCegarLoop]: Abstraction has 18136 states and 29152 transitions. [2024-10-24 01:18:20,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:20,500 INFO L276 IsEmpty]: Start isEmpty. Operand 18136 states and 29152 transitions. [2024-10-24 01:18:20,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:18:20,521 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:20,522 INFO L215 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] [2024-10-24 01:18:20,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:18:20,522 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:20,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash 974145400, now seen corresponding path program 1 times [2024-10-24 01:18:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:20,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465657823] [2024-10-24 01:18:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:20,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:20,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:20,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:18:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:20,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:18:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:20,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:18:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:20,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:18:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:20,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:20,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465657823] [2024-10-24 01:18:20,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465657823] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:20,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:20,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:20,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195792750] [2024-10-24 01:18:20,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:20,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:20,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:20,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:20,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:20,725 INFO L87 Difference]: Start difference. First operand 18136 states and 29152 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:26,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:26,878 INFO L93 Difference]: Finished difference Result 70853 states and 115449 transitions. [2024-10-24 01:18:26,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:18:26,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:18:26,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:27,067 INFO L225 Difference]: With dead ends: 70853 [2024-10-24 01:18:27,067 INFO L226 Difference]: Without dead ends: 52733 [2024-10-24 01:18:27,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:18:27,138 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 1578 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 3235 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 3297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:27,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 1671 Invalid, 3297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3235 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 01:18:27,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52733 states. [2024-10-24 01:18:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52733 to 36091. [2024-10-24 01:18:29,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36091 states, 32925 states have (on average 1.57542900531511) internal successors, (51871), 33054 states have internal predecessors, (51871), 2263 states have call successors, (2263), 774 states have call predecessors, (2263), 902 states have return successors, (4578), 2390 states have call predecessors, (4578), 2263 states have call successors, (4578) [2024-10-24 01:18:30,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36091 states to 36091 states and 58712 transitions. [2024-10-24 01:18:30,055 INFO L78 Accepts]: Start accepts. Automaton has 36091 states and 58712 transitions. Word has length 147 [2024-10-24 01:18:30,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:30,056 INFO L471 AbstractCegarLoop]: Abstraction has 36091 states and 58712 transitions. [2024-10-24 01:18:30,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 36091 states and 58712 transitions. [2024-10-24 01:18:30,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:18:30,100 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:30,100 INFO L215 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] [2024-10-24 01:18:30,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:18:30,101 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:30,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:30,101 INFO L85 PathProgramCache]: Analyzing trace with hash 641502262, now seen corresponding path program 1 times [2024-10-24 01:18:30,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:30,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644321033] [2024-10-24 01:18:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:30,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:30,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:30,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:18:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:30,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:18:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:30,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:18:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:30,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:18:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:30,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:30,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:30,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644321033] [2024-10-24 01:18:30,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644321033] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:30,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:30,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:30,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355389268] [2024-10-24 01:18:30,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:30,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:30,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:30,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:30,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:30,318 INFO L87 Difference]: Start difference. First operand 36091 states and 58712 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:39,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:18:39,374 INFO L93 Difference]: Finished difference Result 138982 states and 229123 transitions. [2024-10-24 01:18:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:18:39,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 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 147 [2024-10-24 01:18:39,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:18:40,082 INFO L225 Difference]: With dead ends: 138982 [2024-10-24 01:18:40,083 INFO L226 Difference]: Without dead ends: 102907 [2024-10-24 01:18:40,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-24 01:18:40,194 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 1374 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 3685 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 3746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:18:40,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 1671 Invalid, 3746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3685 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 01:18:40,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102907 states. [2024-10-24 01:18:45,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102907 to 71996. [2024-10-24 01:18:45,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71996 states, 65822 states have (on average 1.5756585943909331) internal successors, (103713), 66079 states have internal predecessors, (103713), 4375 states have call successors, (4375), 1542 states have call predecessors, (4375), 1798 states have return successors, (11192), 4630 states have call predecessors, (11192), 4375 states have call successors, (11192) [2024-10-24 01:18:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71996 states to 71996 states and 119280 transitions. [2024-10-24 01:18:46,145 INFO L78 Accepts]: Start accepts. Automaton has 71996 states and 119280 transitions. Word has length 147 [2024-10-24 01:18:46,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:18:46,146 INFO L471 AbstractCegarLoop]: Abstraction has 71996 states and 119280 transitions. [2024-10-24 01:18:46,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:18:46,146 INFO L276 IsEmpty]: Start isEmpty. Operand 71996 states and 119280 transitions. [2024-10-24 01:18:46,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 01:18:46,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:18:46,254 INFO L215 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] [2024-10-24 01:18:46,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:18:46,254 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:18:46,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:18:46,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1724532808, now seen corresponding path program 1 times [2024-10-24 01:18:46,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:18:46,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561604872] [2024-10-24 01:18:46,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:18:46,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:18:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:46,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:18:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:46,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 01:18:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:46,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 01:18:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:46,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 01:18:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:46,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 01:18:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:18:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:18:46,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:18:46,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561604872] [2024-10-24 01:18:46,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561604872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:18:46,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:18:46,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:18:46,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327076334] [2024-10-24 01:18:46,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:18:46,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:18:46,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:18:46,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:18:46,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:18:46,481 INFO L87 Difference]: Start difference. First operand 71996 states and 119280 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 5 states have internal predecessors, (137), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)