./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.16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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.16.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 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:57:50,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:57:51,039 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:57:51,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:57:51,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:57:51,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:57:51,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:57:51,083 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:57:51,084 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:57:51,085 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:57:51,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:57:51,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:57:51,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:57:51,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:57:51,087 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:57:51,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:57:51,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:57:51,090 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:57:51,091 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:57:51,091 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:57:51,091 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:57:51,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:57:51,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:57:51,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:57:51,096 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:57:51,096 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:57:51,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:57:51,097 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:57:51,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:57:51,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:57:51,098 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:57:51,098 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:57:51,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:57:51,098 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:57:51,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:57:51,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:57:51,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:57:51,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:57:51,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:57:51,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:57:51,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:57:51,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:57:51,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 [2024-10-12 19:57:51,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:57:51,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:57:51,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:57:51,406 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:57:51,407 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:57:51,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c [2024-10-12 19:57:52,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:57:53,094 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:57:53,095 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c [2024-10-12 19:57:53,110 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a7b8949/013ab65aefa647f0a495337a362bde5e/FLAGba84d8845 [2024-10-12 19:57:53,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94a7b8949/013ab65aefa647f0a495337a362bde5e [2024-10-12 19:57:53,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:57:53,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:57:53,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:57:53,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:57:53,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:57:53,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e12b017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53, skipping insertion in model container [2024-10-12 19:57:53,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:57:53,342 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.16.cil.c[706,719] [2024-10-12 19:57:53,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:57:53,510 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:57:53,524 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.16.cil.c[706,719] [2024-10-12 19:57:53,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:57:53,633 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:57:53,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53 WrapperNode [2024-10-12 19:57:53,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:57:53,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:57:53,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:57:53,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:57:53,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,717 INFO L138 Inliner]: procedures = 56, calls = 71, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 974 [2024-10-12 19:57:53,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:57:53,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:57:53,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:57:53,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:57:53,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,735 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,766 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]. [2024-10-12 19:57:53,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:57:53,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:57:53,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:57:53,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:57:53,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (1/1) ... [2024-10-12 19:57:53,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:57:53,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:57:53,865 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) [2024-10-12 19:57:53,867 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 [2024-10-12 19:57:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:57:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-12 19:57:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-12 19:57:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-12 19:57:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-12 19:57:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-12 19:57:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-12 19:57:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-12 19:57:53,914 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-12 19:57:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-12 19:57:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-12 19:57:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-12 19:57:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-12 19:57:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:57:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:57:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:57:54,106 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:57:54,108 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:57:55,015 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2024-10-12 19:57:55,016 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:57:55,096 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:57:55,096 INFO L314 CfgBuilder]: Removed 18 assume(true) statements. [2024-10-12 19:57:55,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:57:55 BoogieIcfgContainer [2024-10-12 19:57:55,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:57:55,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:57:55,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:57:55,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:57:55,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:57:53" (1/3) ... [2024-10-12 19:57:55,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bc5217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:57:55, skipping insertion in model container [2024-10-12 19:57:55,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:57:53" (2/3) ... [2024-10-12 19:57:55,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bc5217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:57:55, skipping insertion in model container [2024-10-12 19:57:55,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:57:55" (3/3) ... [2024-10-12 19:57:55,109 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2024-10-12 19:57:55,126 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:57:55,126 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:57:55,196 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:57:55,201 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;@45ff6d20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:57:55,202 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:57:55,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 387 states, 353 states have (on average 1.745042492917847) internal successors, (616), 355 states have internal predecessors, (616), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-12 19:57:55,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:57:55,225 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:57:55,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:57:55,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:57:55,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:57:55,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1545450111, now seen corresponding path program 1 times [2024-10-12 19:57:55,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:57:55,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821470216] [2024-10-12 19:57:55,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:57:55,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:57:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:55,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:57:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:55,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:57:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:55,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:57:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:56,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:57:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:56,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 19:57:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:56,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:57:56,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:57:56,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821470216] [2024-10-12 19:57:56,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821470216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:57:56,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:57:56,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:57:56,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809341664] [2024-10-12 19:57:56,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:57:56,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:57:56,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:57:56,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:57:56,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:57:56,085 INFO L87 Difference]: Start difference. First operand has 387 states, 353 states have (on average 1.745042492917847) internal successors, (616), 355 states have internal predecessors, (616), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 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) [2024-10-12 19:57:58,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:57:58,632 INFO L93 Difference]: Finished difference Result 916 states and 1589 transitions. [2024-10-12 19:57:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 19:57:58,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 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 176 [2024-10-12 19:57:58,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:57:58,657 INFO L225 Difference]: With dead ends: 916 [2024-10-12 19:57:58,657 INFO L226 Difference]: Without dead ends: 533 [2024-10-12 19:57:58,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 19:57:58,672 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 1106 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-12 19:57:58,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 694 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-12 19:57:58,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-10-12 19:57:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 385. [2024-10-12 19:57:58,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 352 states have (on average 1.6363636363636365) internal successors, (576), 353 states have internal predecessors, (576), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-12 19:57:58,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 628 transitions. [2024-10-12 19:57:58,752 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 628 transitions. Word has length 176 [2024-10-12 19:57:58,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:57:58,752 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 628 transitions. [2024-10-12 19:57:58,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 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) [2024-10-12 19:57:58,753 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 628 transitions. [2024-10-12 19:57:58,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:57:58,758 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:57:58,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:57:58,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 19:57:58,759 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:57:58,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:57:58,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1635510401, now seen corresponding path program 1 times [2024-10-12 19:57:58,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:57:58,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804900610] [2024-10-12 19:57:58,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:57:58,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:57:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:58,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:57:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:58,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:57:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:59,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:57:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:59,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:57:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:59,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 19:57:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:57:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:57:59,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:57:59,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804900610] [2024-10-12 19:57:59,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804900610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:57:59,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:57:59,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:57:59,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435773387] [2024-10-12 19:57:59,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:57:59,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:57:59,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:57:59,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:57:59,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:57:59,108 INFO L87 Difference]: Start difference. First operand 385 states and 628 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 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) [2024-10-12 19:58:01,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:58:01,065 INFO L93 Difference]: Finished difference Result 904 states and 1494 transitions. [2024-10-12 19:58:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 19:58:01,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 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 176 [2024-10-12 19:58:01,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:58:01,070 INFO L225 Difference]: With dead ends: 904 [2024-10-12 19:58:01,072 INFO L226 Difference]: Without dead ends: 533 [2024-10-12 19:58:01,074 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 [2024-10-12 19:58:01,076 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 1095 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:58:01,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 689 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 19:58:01,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-10-12 19:58:01,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 385. [2024-10-12 19:58:01,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 352 states have (on average 1.6335227272727273) internal successors, (575), 353 states have internal predecessors, (575), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-12 19:58:01,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 627 transitions. [2024-10-12 19:58:01,114 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 627 transitions. Word has length 176 [2024-10-12 19:58:01,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:58:01,115 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 627 transitions. [2024-10-12 19:58:01,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 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) [2024-10-12 19:58:01,115 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 627 transitions. [2024-10-12 19:58:01,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:58:01,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:58:01,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:58:01,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 19:58:01,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:58:01,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:58:01,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1255587709, now seen corresponding path program 1 times [2024-10-12 19:58:01,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:58:01,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038465610] [2024-10-12 19:58:01,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:58:01,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:58:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:01,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:58:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:01,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:58:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:01,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:58:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:01,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:58:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:01,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 19:58:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:01,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:58:01,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:58:01,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038465610] [2024-10-12 19:58:01,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038465610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:58:01,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:58:01,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:58:01,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917299702] [2024-10-12 19:58:01,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:58:01,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:58:01,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:58:01,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:58:01,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:58:01,573 INFO L87 Difference]: Start difference. First operand 385 states and 627 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:06,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:58:06,726 INFO L93 Difference]: Finished difference Result 1817 states and 3024 transitions. [2024-10-12 19:58:06,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-12 19:58:06,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2024-10-12 19:58:06,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:58:06,736 INFO L225 Difference]: With dead ends: 1817 [2024-10-12 19:58:06,736 INFO L226 Difference]: Without dead ends: 1452 [2024-10-12 19:58:06,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:58:06,740 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 2481 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4283 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 4355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:58:06,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 2229 Invalid, 4355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4283 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-10-12 19:58:06,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2024-10-12 19:58:06,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 776. [2024-10-12 19:58:06,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 712 states have (on average 1.6446629213483146) internal successors, (1171), 715 states have internal predecessors, (1171), 49 states have call successors, (49), 12 states have call predecessors, (49), 14 states have return successors, (56), 50 states have call predecessors, (56), 49 states have call successors, (56) [2024-10-12 19:58:06,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1276 transitions. [2024-10-12 19:58:06,819 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1276 transitions. Word has length 176 [2024-10-12 19:58:06,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:58:06,819 INFO L471 AbstractCegarLoop]: Abstraction has 776 states and 1276 transitions. [2024-10-12 19:58:06,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:06,820 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1276 transitions. [2024-10-12 19:58:06,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:58:06,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:58:06,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:58:06,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 19:58:06,823 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:58:06,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:58:06,824 INFO L85 PathProgramCache]: Analyzing trace with hash -149603969, now seen corresponding path program 1 times [2024-10-12 19:58:06,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:58:06,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283942650] [2024-10-12 19:58:06,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:58:06,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:58:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:07,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:58:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:07,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:58:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:07,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:58:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:07,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:58:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:07,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 19:58:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:07,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:58:07,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:58:07,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283942650] [2024-10-12 19:58:07,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283942650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:58:07,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:58:07,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:58:07,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822766415] [2024-10-12 19:58:07,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:58:07,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:58:07,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:58:07,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:58:07,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:58:07,254 INFO L87 Difference]: Start difference. First operand 776 states and 1276 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:12,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:58:12,167 INFO L93 Difference]: Finished difference Result 3535 states and 5859 transitions. [2024-10-12 19:58:12,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-12 19:58:12,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2024-10-12 19:58:12,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:58:12,189 INFO L225 Difference]: With dead ends: 3535 [2024-10-12 19:58:12,189 INFO L226 Difference]: Without dead ends: 2781 [2024-10-12 19:58:12,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:58:12,196 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 2488 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 4195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-12 19:58:12,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 2107 Invalid, 4195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 4112 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-12 19:58:12,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2024-10-12 19:58:12,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 1492. [2024-10-12 19:58:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1372 states have (on average 1.6355685131195334) internal successors, (2244), 1377 states have internal predecessors, (2244), 91 states have call successors, (91), 24 states have call predecessors, (91), 28 states have return successors, (108), 94 states have call predecessors, (108), 91 states have call successors, (108) [2024-10-12 19:58:12,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2443 transitions. [2024-10-12 19:58:12,335 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2443 transitions. Word has length 176 [2024-10-12 19:58:12,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:58:12,336 INFO L471 AbstractCegarLoop]: Abstraction has 1492 states and 2443 transitions. [2024-10-12 19:58:12,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:12,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2443 transitions. [2024-10-12 19:58:12,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:58:12,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:58:12,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:58:12,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 19:58:12,340 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:58:12,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:58:12,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1744729917, now seen corresponding path program 1 times [2024-10-12 19:58:12,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:58:12,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543600369] [2024-10-12 19:58:12,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:58:12,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:58:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:12,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:58:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:12,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:58:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:12,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:58:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:12,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:58:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:12,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 19:58:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:12,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:58:12,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:58:12,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543600369] [2024-10-12 19:58:12,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543600369] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:58:12,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:58:12,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:58:12,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014174149] [2024-10-12 19:58:12,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:58:12,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:58:12,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:58:12,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:58:12,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:58:12,685 INFO L87 Difference]: Start difference. First operand 1492 states and 2443 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:17,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:58:17,197 INFO L93 Difference]: Finished difference Result 6907 states and 11410 transitions. [2024-10-12 19:58:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-12 19:58:17,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2024-10-12 19:58:17,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:58:17,226 INFO L225 Difference]: With dead ends: 6907 [2024-10-12 19:58:17,226 INFO L226 Difference]: Without dead ends: 5437 [2024-10-12 19:58:17,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:58:17,235 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 2539 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 3904 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 3987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:58:17,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 2108 Invalid, 3987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3904 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-12 19:58:17,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2024-10-12 19:58:17,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 2926. [2024-10-12 19:58:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2926 states, 2694 states have (on average 1.6302895322939865) internal successors, (4392), 2703 states have internal predecessors, (4392), 175 states have call successors, (175), 48 states have call predecessors, (175), 56 states have return successors, (218), 182 states have call predecessors, (218), 175 states have call successors, (218) [2024-10-12 19:58:17,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 4785 transitions. [2024-10-12 19:58:17,458 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 4785 transitions. Word has length 176 [2024-10-12 19:58:17,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:58:17,459 INFO L471 AbstractCegarLoop]: Abstraction has 2926 states and 4785 transitions. [2024-10-12 19:58:17,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:17,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 4785 transitions. [2024-10-12 19:58:17,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:58:17,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:58:17,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:58:17,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 19:58:17,466 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:58:17,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:58:17,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1103656513, now seen corresponding path program 1 times [2024-10-12 19:58:17,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:58:17,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102084671] [2024-10-12 19:58:17,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:58:17,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:58:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:17,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:58:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:17,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:58:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:17,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:58:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:17,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:58:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:17,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 19:58:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:58:17,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:58:17,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102084671] [2024-10-12 19:58:17,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102084671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:58:17,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:58:17,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:58:17,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472871267] [2024-10-12 19:58:17,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:58:17,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:58:17,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:58:17,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:58:17,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:58:17,838 INFO L87 Difference]: Start difference. First operand 2926 states and 4785 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:22,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:58:22,692 INFO L93 Difference]: Finished difference Result 13649 states and 22526 transitions. [2024-10-12 19:58:22,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-12 19:58:22,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2024-10-12 19:58:22,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:58:22,750 INFO L225 Difference]: With dead ends: 13649 [2024-10-12 19:58:22,752 INFO L226 Difference]: Without dead ends: 10745 [2024-10-12 19:58:22,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:58:22,769 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 2483 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4252 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 4326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 4252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:58:22,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 2225 Invalid, 4326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 4252 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-12 19:58:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2024-10-12 19:58:23,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 5800. [2024-10-12 19:58:23,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5800 states, 5344 states have (on average 1.627245508982036) internal successors, (8696), 5361 states have internal predecessors, (8696), 343 states have call successors, (343), 96 states have call predecessors, (343), 112 states have return successors, (456), 358 states have call predecessors, (456), 343 states have call successors, (456) [2024-10-12 19:58:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 9495 transitions. [2024-10-12 19:58:23,204 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 9495 transitions. Word has length 176 [2024-10-12 19:58:23,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:58:23,204 INFO L471 AbstractCegarLoop]: Abstraction has 5800 states and 9495 transitions. [2024-10-12 19:58:23,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:23,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 9495 transitions. [2024-10-12 19:58:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:58:23,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:58:23,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:58:23,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:58:23,209 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:58:23,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:58:23,210 INFO L85 PathProgramCache]: Analyzing trace with hash -2026823939, now seen corresponding path program 1 times [2024-10-12 19:58:23,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:58:23,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431972466] [2024-10-12 19:58:23,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:58:23,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:58:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:23,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:58:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:23,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:58:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:23,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:58:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:23,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:58:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:23,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 19:58:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:23,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:58:23,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:58:23,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431972466] [2024-10-12 19:58:23,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431972466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:58:23,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:58:23,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:58:23,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081659172] [2024-10-12 19:58:23,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:58:23,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:58:23,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:58:23,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:58:23,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:58:23,539 INFO L87 Difference]: Start difference. First operand 5800 states and 9495 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:28,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:58:28,644 INFO L93 Difference]: Finished difference Result 27131 states and 44814 transitions. [2024-10-12 19:58:28,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-12 19:58:28,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2024-10-12 19:58:28,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:58:28,734 INFO L225 Difference]: With dead ends: 27131 [2024-10-12 19:58:28,734 INFO L226 Difference]: Without dead ends: 21353 [2024-10-12 19:58:28,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:58:28,767 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 2483 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4253 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 4327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 4253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:58:28,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 2227 Invalid, 4327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 4253 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-12 19:58:28,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21353 states. [2024-10-12 19:58:29,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21353 to 11562. [2024-10-12 19:58:29,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11562 states, 10658 states have (on average 1.6254456746106212) internal successors, (17324), 10691 states have internal predecessors, (17324), 679 states have call successors, (679), 192 states have call predecessors, (679), 224 states have return successors, (986), 710 states have call predecessors, (986), 679 states have call successors, (986) [2024-10-12 19:58:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11562 states to 11562 states and 18989 transitions. [2024-10-12 19:58:29,822 INFO L78 Accepts]: Start accepts. Automaton has 11562 states and 18989 transitions. Word has length 176 [2024-10-12 19:58:29,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:58:29,823 INFO L471 AbstractCegarLoop]: Abstraction has 11562 states and 18989 transitions. [2024-10-12 19:58:29,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:29,823 INFO L276 IsEmpty]: Start isEmpty. Operand 11562 states and 18989 transitions. [2024-10-12 19:58:29,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:58:29,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:58:29,833 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:58:29,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:58:29,834 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:58:29,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:58:29,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1640961537, now seen corresponding path program 1 times [2024-10-12 19:58:29,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:58:29,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134528499] [2024-10-12 19:58:29,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:58:29,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:58:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:29,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:58:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:30,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:58:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:30,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:58:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:30,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:58:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:30,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 19:58:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:30,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:58:30,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:58:30,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134528499] [2024-10-12 19:58:30,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134528499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:58:30,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:58:30,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:58:30,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012126569] [2024-10-12 19:58:30,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:58:30,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:58:30,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:58:30,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:58:30,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:58:30,159 INFO L87 Difference]: Start difference. First operand 11562 states and 18989 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:36,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:58:36,411 INFO L93 Difference]: Finished difference Result 54093 states and 89578 transitions. [2024-10-12 19:58:36,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-12 19:58:36,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2024-10-12 19:58:36,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:58:36,574 INFO L225 Difference]: With dead ends: 54093 [2024-10-12 19:58:36,574 INFO L226 Difference]: Without dead ends: 42553 [2024-10-12 19:58:36,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:58:36,629 INFO L432 NwaCegarLoop]: 508 mSDtfsCounter, 2483 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4249 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 4323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 4249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:58:36,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 2228 Invalid, 4323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 4249 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-12 19:58:36,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42553 states. [2024-10-12 19:58:38,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42553 to 23116. [2024-10-12 19:58:38,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23116 states, 21316 states have (on average 1.6243197598048413) internal successors, (34624), 21381 states have internal predecessors, (34624), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 448 states have return successors, (2208), 1414 states have call predecessors, (2208), 1351 states have call successors, (2208) [2024-10-12 19:58:38,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23116 states to 23116 states and 38183 transitions. [2024-10-12 19:58:38,156 INFO L78 Accepts]: Start accepts. Automaton has 23116 states and 38183 transitions. Word has length 176 [2024-10-12 19:58:38,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:58:38,158 INFO L471 AbstractCegarLoop]: Abstraction has 23116 states and 38183 transitions. [2024-10-12 19:58:38,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:38,159 INFO L276 IsEmpty]: Start isEmpty. Operand 23116 states and 38183 transitions. [2024-10-12 19:58:38,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:58:38,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:58:38,173 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:58:38,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:58:38,174 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:58:38,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:58:38,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1905609027, now seen corresponding path program 1 times [2024-10-12 19:58:38,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:58:38,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915346680] [2024-10-12 19:58:38,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:58:38,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:58:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:38,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:58:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:38,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:58:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:38,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:58:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:38,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:58:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:38,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 19:58:38,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:58:38,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:58:38,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915346680] [2024-10-12 19:58:38,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915346680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:58:38,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:58:38,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:58:38,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378949390] [2024-10-12 19:58:38,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:58:38,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:58:38,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:58:38,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:58:38,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:58:38,696 INFO L87 Difference]: Start difference. First operand 23116 states and 38183 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:46,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:58:46,838 INFO L93 Difference]: Finished difference Result 108015 states and 179702 transitions. [2024-10-12 19:58:46,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-12 19:58:46,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2024-10-12 19:58:46,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:58:47,229 INFO L225 Difference]: With dead ends: 108015 [2024-10-12 19:58:47,229 INFO L226 Difference]: Without dead ends: 84921 [2024-10-12 19:58:47,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:58:47,403 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 2489 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4230 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 4304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 4230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:58:47,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2523 Valid, 2227 Invalid, 4304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 4230 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-12 19:58:47,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84921 states. [2024-10-12 19:58:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84921 to 46286. [2024-10-12 19:58:50,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46286 states, 42694 states have (on average 1.6235536609359629) internal successors, (69316), 42823 states have internal predecessors, (69316), 2695 states have call successors, (2695), 768 states have call predecessors, (2695), 896 states have return successors, (5138), 2822 states have call predecessors, (5138), 2695 states have call successors, (5138) [2024-10-12 19:58:50,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46286 states to 46286 states and 77149 transitions. [2024-10-12 19:58:50,596 INFO L78 Accepts]: Start accepts. Automaton has 46286 states and 77149 transitions. Word has length 176 [2024-10-12 19:58:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:58:50,597 INFO L471 AbstractCegarLoop]: Abstraction has 46286 states and 77149 transitions. [2024-10-12 19:58:50,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:58:50,597 INFO L276 IsEmpty]: Start isEmpty. Operand 46286 states and 77149 transitions. [2024-10-12 19:58:50,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:58:50,617 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:58:50,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:58:50,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:58:50,618 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:58:50,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:58:50,618 INFO L85 PathProgramCache]: Analyzing trace with hash 25516607, now seen corresponding path program 1 times [2024-10-12 19:58:50,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:58:50,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044526565] [2024-10-12 19:58:50,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:58:50,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:58:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:50,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:58:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:50,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:58:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:50,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:58:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:50,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-12 19:58:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:50,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 19:58:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:58:50,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:58:50,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:58:50,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044526565] [2024-10-12 19:58:50,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044526565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:58:50,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:58:50,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:58:50,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469365980] [2024-10-12 19:58:50,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:58:50,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:58:50,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:58:50,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:58:50,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:58:50,898 INFO L87 Difference]: Start difference. First operand 46286 states and 77149 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:59:02,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:59:02,952 INFO L93 Difference]: Finished difference Result 215732 states and 361546 transitions. [2024-10-12 19:59:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-12 19:59:02,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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 176 [2024-10-12 19:59:02,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:59:03,692 INFO L225 Difference]: With dead ends: 215732 [2024-10-12 19:59:03,692 INFO L226 Difference]: Without dead ends: 169468 [2024-10-12 19:59:03,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-12 19:59:03,817 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 2532 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4110 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2566 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 4184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 4110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:59:03,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2566 Valid, 2226 Invalid, 4184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 4110 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-12 19:59:03,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169468 states. [2024-10-12 19:59:09,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169468 to 92880. [2024-10-12 19:59:09,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92880 states, 85704 states have (on average 1.623541491645664) internal successors, (139144), 85961 states have internal predecessors, (139144), 5383 states have call successors, (5383), 1536 states have call predecessors, (5383), 1792 states have return successors, (12456), 5638 states have call predecessors, (12456), 5383 states have call successors, (12456) [2024-10-12 19:59:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92880 states to 92880 states and 156983 transitions. [2024-10-12 19:59:09,980 INFO L78 Accepts]: Start accepts. Automaton has 92880 states and 156983 transitions. Word has length 176 [2024-10-12 19:59:09,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:59:09,981 INFO L471 AbstractCegarLoop]: Abstraction has 92880 states and 156983 transitions. [2024-10-12 19:59:09,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 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) [2024-10-12 19:59:09,981 INFO L276 IsEmpty]: Start isEmpty. Operand 92880 states and 156983 transitions. [2024-10-12 19:59:10,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-12 19:59:10,022 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:59:10,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:59:10,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 19:59:10,023 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:59:10,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:59:10,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1922496065, now seen corresponding path program 1 times [2024-10-12 19:59:10,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:59:10,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524775721] [2024-10-12 19:59:10,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:59:10,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:59:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:59:10,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:59:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat