./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/token_ring.12.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.12.cil-2.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 bc6dc2c99e05b6915f0a2e5b5d96221c996d96767aaa6be997dea59c4d6f5f0a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:16:10,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:16:10,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:16:10,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:16:10,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:16:10,887 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:16:10,888 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:16:10,888 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:16:10,889 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:16:10,889 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:16:10,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:16:10,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:16:10,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:16:10,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:16:10,892 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:16:10,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:16:10,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:16:10,893 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:16:10,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:16:10,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:16:10,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:16:10,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:16:10,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:16:10,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:16:10,898 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:16:10,898 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:16:10,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:16:10,899 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:16:10,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:16:10,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:16:10,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:16:10,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:16:10,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:16:10,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:16:10,904 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:16:10,904 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:16:10,905 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:16:10,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:16:10,905 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:16:10,906 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:16:10,906 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:16:10,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:16:10,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc6dc2c99e05b6915f0a2e5b5d96221c996d96767aaa6be997dea59c4d6f5f0a [2024-10-24 01:16:11,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:16:11,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:16:11,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:16:11,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:16:11,201 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:16:11,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.12.cil-2.c [2024-10-24 01:16:12,641 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:16:12,855 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:16:12,856 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.12.cil-2.c [2024-10-24 01:16:12,870 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e08867275/18ab5f5b5fba42bbbb7ff2420623d2c5/FLAGf65e45e0c [2024-10-24 01:16:12,883 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e08867275/18ab5f5b5fba42bbbb7ff2420623d2c5 [2024-10-24 01:16:12,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:16:12,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:16:12,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:16:12,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:16:12,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:16:12,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:16:12" (1/1) ... [2024-10-24 01:16:12,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57dd45c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:12, skipping insertion in model container [2024-10-24 01:16:12,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:16:12" (1/1) ... [2024-10-24 01:16:12,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:16:13,190 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/token_ring.12.cil-2.c[671,684] [2024-10-24 01:16:13,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:16:13,346 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:16:13,357 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/token_ring.12.cil-2.c[671,684] [2024-10-24 01:16:13,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:16:13,463 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:16:13,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13 WrapperNode [2024-10-24 01:16:13,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:16:13,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:16:13,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:16:13,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:16:13,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,547 INFO L138 Inliner]: procedures = 52, calls = 67, calls flagged for inlining = 36, calls inlined = 36, statements flattened = 879 [2024-10-24 01:16:13,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:16:13,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:16:13,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:16:13,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:16:13,560 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,590 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 01:16:13,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:16:13,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:16:13,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:16:13,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:16:13,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (1/1) ... [2024-10-24 01:16:13,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:16:13,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:16:13,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:16:13,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:16:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:16:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 01:16:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 01:16:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 01:16:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 01:16:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 01:16:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 01:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 01:16:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 01:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 01:16:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 01:16:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 01:16:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 01:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:16:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:16:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:16:13,826 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:16:13,828 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:16:14,776 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2024-10-24 01:16:14,777 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:16:14,851 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:16:14,851 INFO L314 CfgBuilder]: Removed 15 assume(true) statements. [2024-10-24 01:16:14,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:16:14 BoogieIcfgContainer [2024-10-24 01:16:14,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:16:14,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:16:14,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:16:14,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:16:14,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:16:12" (1/3) ... [2024-10-24 01:16:14,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dbd258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:16:14, skipping insertion in model container [2024-10-24 01:16:14,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:16:13" (2/3) ... [2024-10-24 01:16:14,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dbd258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:16:14, skipping insertion in model container [2024-10-24 01:16:14,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:16:14" (3/3) ... [2024-10-24 01:16:14,866 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.12.cil-2.c [2024-10-24 01:16:14,882 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:16:14,882 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:16:14,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:16:14,975 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;@7b9443db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:16:14,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:16:14,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 348 states, 314 states have (on average 1.7356687898089171) internal successors, (545), 316 states have internal predecessors, (545), 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) [2024-10-24 01:16:14,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:14,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:14,999 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] [2024-10-24 01:16:15,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:15,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:15,005 INFO L85 PathProgramCache]: Analyzing trace with hash 855529277, now seen corresponding path program 1 times [2024-10-24 01:16:15,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:15,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324406452] [2024-10-24 01:16:15,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:15,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:15,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:15,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:15,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:15,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:15,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:15,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:15,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:15,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324406452] [2024-10-24 01:16:15,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324406452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:15,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:15,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:16:15,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672552167] [2024-10-24 01:16:15,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:15,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:16:15,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:15,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:16:15,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:16:15,844 INFO L87 Difference]: Start difference. First operand has 348 states, 314 states have (on average 1.7356687898089171) internal successors, (545), 316 states have internal predecessors, (545), 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 30.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:17,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:17,888 INFO L93 Difference]: Finished difference Result 818 states and 1413 transitions. [2024-10-24 01:16:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:16:17,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:17,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:17,908 INFO L225 Difference]: With dead ends: 818 [2024-10-24 01:16:17,909 INFO L226 Difference]: Without dead ends: 476 [2024-10-24 01:16:17,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:16:17,917 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 975 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:17,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 625 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 01:16:17,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-10-24 01:16:17,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 346. [2024-10-24 01:16:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 313 states have (on average 1.6325878594249201) internal successors, (511), 314 states have internal predecessors, (511), 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) [2024-10-24 01:16:18,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 563 transitions. [2024-10-24 01:16:18,005 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 563 transitions. Word has length 160 [2024-10-24 01:16:18,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:18,005 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 563 transitions. [2024-10-24 01:16:18,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:18,006 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 563 transitions. [2024-10-24 01:16:18,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:18,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:18,009 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] [2024-10-24 01:16:18,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:16:18,010 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:18,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:18,011 INFO L85 PathProgramCache]: Analyzing trace with hash -591051589, now seen corresponding path program 1 times [2024-10-24 01:16:18,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:18,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67884999] [2024-10-24 01:16:18,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:18,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:18,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:18,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:18,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:18,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:18,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:18,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:18,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:18,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67884999] [2024-10-24 01:16:18,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67884999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:18,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:18,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:16:18,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715129677] [2024-10-24 01:16:18,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:18,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:16:18,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:18,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:16:18,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:16:18,328 INFO L87 Difference]: Start difference. First operand 346 states and 563 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:20,190 INFO L93 Difference]: Finished difference Result 806 states and 1330 transitions. [2024-10-24 01:16:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:16:20,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:20,196 INFO L225 Difference]: With dead ends: 806 [2024-10-24 01:16:20,196 INFO L226 Difference]: Without dead ends: 476 [2024-10-24 01:16:20,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:16:20,202 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 964 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:20,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 620 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 01:16:20,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-10-24 01:16:20,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 346. [2024-10-24 01:16:20,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 313 states have (on average 1.6293929712460065) internal successors, (510), 314 states have internal predecessors, (510), 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) [2024-10-24 01:16:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 562 transitions. [2024-10-24 01:16:20,247 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 562 transitions. Word has length 160 [2024-10-24 01:16:20,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:20,247 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 562 transitions. [2024-10-24 01:16:20,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 3 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:20,248 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 562 transitions. [2024-10-24 01:16:20,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:20,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:20,251 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] [2024-10-24 01:16:20,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:16:20,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:20,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:20,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1017606087, now seen corresponding path program 1 times [2024-10-24 01:16:20,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:20,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664119304] [2024-10-24 01:16:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:20,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:20,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:20,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:20,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:20,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:20,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:20,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:20,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664119304] [2024-10-24 01:16:20,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664119304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:20,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:20,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:16:20,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994102383] [2024-10-24 01:16:20,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:20,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:16:20,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:20,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:16:20,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:16:20,612 INFO L87 Difference]: Start difference. First operand 346 states and 562 transitions. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:23,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:23,489 INFO L93 Difference]: Finished difference Result 1281 states and 2128 transitions. [2024-10-24 01:16:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:16:23,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:23,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:23,496 INFO L225 Difference]: With dead ends: 1281 [2024-10-24 01:16:23,496 INFO L226 Difference]: Without dead ends: 953 [2024-10-24 01:16:23,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:16:23,499 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 1476 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:23,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1048 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 01:16:23,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-10-24 01:16:23,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 694. [2024-10-24 01:16:23,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 633 states have (on average 1.6398104265402844) internal successors, (1038), 635 states have internal predecessors, (1038), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-10-24 01:16:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1135 transitions. [2024-10-24 01:16:23,560 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1135 transitions. Word has length 160 [2024-10-24 01:16:23,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:23,561 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1135 transitions. [2024-10-24 01:16:23,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:23,561 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1135 transitions. [2024-10-24 01:16:23,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:23,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:23,564 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] [2024-10-24 01:16:23,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:16:23,564 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:23,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:23,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1504388999, now seen corresponding path program 1 times [2024-10-24 01:16:23,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:23,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256146665] [2024-10-24 01:16:23,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:23,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:23,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:23,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:23,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:23,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:23,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:23,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:23,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256146665] [2024-10-24 01:16:23,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256146665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:23,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:23,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:23,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420482943] [2024-10-24 01:16:23,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:23,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:23,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:23,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:23,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:23,911 INFO L87 Difference]: Start difference. First operand 694 states and 1135 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:27,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:27,789 INFO L93 Difference]: Finished difference Result 2126 states and 3534 transitions. [2024-10-24 01:16:27,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:16:27,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:27,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:27,797 INFO L225 Difference]: With dead ends: 2126 [2024-10-24 01:16:27,797 INFO L226 Difference]: Without dead ends: 1450 [2024-10-24 01:16:27,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:16:27,801 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 1513 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 3720 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 3781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:27,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 1992 Invalid, 3781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3720 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 01:16:27,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2024-10-24 01:16:27,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1015. [2024-10-24 01:16:27,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 926 states have (on average 1.632829373650108) internal successors, (1512), 929 states have internal predecessors, (1512), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-10-24 01:16:27,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1653 transitions. [2024-10-24 01:16:27,891 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1653 transitions. Word has length 160 [2024-10-24 01:16:27,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:27,892 INFO L471 AbstractCegarLoop]: Abstraction has 1015 states and 1653 transitions. [2024-10-24 01:16:27,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:27,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1653 transitions. [2024-10-24 01:16:27,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:27,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:27,896 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] [2024-10-24 01:16:27,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:16:27,896 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:27,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:27,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1002708475, now seen corresponding path program 1 times [2024-10-24 01:16:27,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:27,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804771546] [2024-10-24 01:16:27,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:27,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:28,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:28,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:28,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:28,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:28,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:28,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:28,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804771546] [2024-10-24 01:16:28,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804771546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:28,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:28,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:28,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938002032] [2024-10-24 01:16:28,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:28,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:28,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:28,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:28,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:28,224 INFO L87 Difference]: Start difference. First operand 1015 states and 1653 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:31,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:31,568 INFO L93 Difference]: Finished difference Result 3364 states and 5580 transitions. [2024-10-24 01:16:31,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:16:31,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:31,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:31,582 INFO L225 Difference]: With dead ends: 3364 [2024-10-24 01:16:31,583 INFO L226 Difference]: Without dead ends: 2367 [2024-10-24 01:16:31,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:16:31,590 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 1623 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 3086 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 3185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 3086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:31,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 1296 Invalid, 3185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 3086 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 01:16:31,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2024-10-24 01:16:31,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 1658. [2024-10-24 01:16:31,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 1513 states have (on average 1.6265697290152017) internal successors, (2461), 1518 states have internal predecessors, (2461), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-24 01:16:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2694 transitions. [2024-10-24 01:16:31,718 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2694 transitions. Word has length 160 [2024-10-24 01:16:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:31,719 INFO L471 AbstractCegarLoop]: Abstraction has 1658 states and 2694 transitions. [2024-10-24 01:16:31,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:31,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2694 transitions. [2024-10-24 01:16:31,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:31,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:31,721 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] [2024-10-24 01:16:31,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:16:31,722 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:31,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:31,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1133174727, now seen corresponding path program 1 times [2024-10-24 01:16:31,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:31,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390595853] [2024-10-24 01:16:31,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:31,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:31,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:31,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:31,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:32,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:32,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:32,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:32,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390595853] [2024-10-24 01:16:32,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390595853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:32,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:32,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:32,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689240703] [2024-10-24 01:16:32,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:32,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:32,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:32,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:32,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:32,030 INFO L87 Difference]: Start difference. First operand 1658 states and 2694 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:33,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:33,667 INFO L93 Difference]: Finished difference Result 3997 states and 6614 transitions. [2024-10-24 01:16:33,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:16:33,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:33,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:33,679 INFO L225 Difference]: With dead ends: 3997 [2024-10-24 01:16:33,679 INFO L226 Difference]: Without dead ends: 2357 [2024-10-24 01:16:33,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:16:33,686 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1235 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1713 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:33,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 862 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1713 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 01:16:33,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2024-10-24 01:16:33,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1658. [2024-10-24 01:16:33,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 1513 states have (on average 1.6232650363516192) internal successors, (2456), 1518 states have internal predecessors, (2456), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-24 01:16:33,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2689 transitions. [2024-10-24 01:16:33,836 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2689 transitions. Word has length 160 [2024-10-24 01:16:33,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:33,836 INFO L471 AbstractCegarLoop]: Abstraction has 1658 states and 2689 transitions. [2024-10-24 01:16:33,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:33,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2689 transitions. [2024-10-24 01:16:33,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:33,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:33,839 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] [2024-10-24 01:16:33,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:16:33,840 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:33,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:33,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1063526853, now seen corresponding path program 1 times [2024-10-24 01:16:33,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:33,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876903115] [2024-10-24 01:16:33,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:33,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:33,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:34,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:34,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:34,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:34,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:34,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:34,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876903115] [2024-10-24 01:16:34,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876903115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:34,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:34,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:34,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388193894] [2024-10-24 01:16:34,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:34,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:34,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:34,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:34,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:34,132 INFO L87 Difference]: Start difference. First operand 1658 states and 2689 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:35,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:35,956 INFO L93 Difference]: Finished difference Result 3986 states and 6578 transitions. [2024-10-24 01:16:35,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:16:35,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:35,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:35,971 INFO L225 Difference]: With dead ends: 3986 [2024-10-24 01:16:35,972 INFO L226 Difference]: Without dead ends: 2346 [2024-10-24 01:16:35,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:16:35,983 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1231 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:35,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 862 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 01:16:35,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2024-10-24 01:16:36,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 1658. [2024-10-24 01:16:36,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 1513 states have (on average 1.619960343688037) internal successors, (2451), 1518 states have internal predecessors, (2451), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-24 01:16:36,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 2684 transitions. [2024-10-24 01:16:36,114 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 2684 transitions. Word has length 160 [2024-10-24 01:16:36,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:36,114 INFO L471 AbstractCegarLoop]: Abstraction has 1658 states and 2684 transitions. [2024-10-24 01:16:36,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:36,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 2684 transitions. [2024-10-24 01:16:36,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:36,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:36,119 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] [2024-10-24 01:16:36,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:16:36,119 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:36,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:36,120 INFO L85 PathProgramCache]: Analyzing trace with hash 335426749, now seen corresponding path program 1 times [2024-10-24 01:16:36,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:36,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366804037] [2024-10-24 01:16:36,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:36,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:36,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:36,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:36,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:36,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:36,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:36,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:36,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366804037] [2024-10-24 01:16:36,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366804037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:36,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:36,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:36,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347948829] [2024-10-24 01:16:36,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:36,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:36,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:36,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:36,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:36,402 INFO L87 Difference]: Start difference. First operand 1658 states and 2684 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:40,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:40,099 INFO L93 Difference]: Finished difference Result 5718 states and 9399 transitions. [2024-10-24 01:16:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:16:40,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:40,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:40,118 INFO L225 Difference]: With dead ends: 5718 [2024-10-24 01:16:40,118 INFO L226 Difference]: Without dead ends: 4078 [2024-10-24 01:16:40,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:16:40,125 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1496 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 3641 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 3704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:40,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1990 Invalid, 3704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3641 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 01:16:40,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4078 states. [2024-10-24 01:16:40,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4078 to 2959. [2024-10-24 01:16:40,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2959 states, 2702 states have (on average 1.614359733530718) internal successors, (4362), 2711 states have internal predecessors, (4362), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-24 01:16:40,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 4785 transitions. [2024-10-24 01:16:40,372 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 4785 transitions. Word has length 160 [2024-10-24 01:16:40,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:40,373 INFO L471 AbstractCegarLoop]: Abstraction has 2959 states and 4785 transitions. [2024-10-24 01:16:40,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:40,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 4785 transitions. [2024-10-24 01:16:40,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:40,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:40,377 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] [2024-10-24 01:16:40,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:16:40,378 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:40,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:40,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1282013701, now seen corresponding path program 1 times [2024-10-24 01:16:40,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:40,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22205350] [2024-10-24 01:16:40,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:40,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:40,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:40,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:40,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:40,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:40,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:40,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:40,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:40,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22205350] [2024-10-24 01:16:40,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22205350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:40,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:40,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:40,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292727073] [2024-10-24 01:16:40,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:40,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:40,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:40,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:40,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:40,692 INFO L87 Difference]: Start difference. First operand 2959 states and 4785 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:42,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:42,240 INFO L93 Difference]: Finished difference Result 7044 states and 11575 transitions. [2024-10-24 01:16:42,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:16:42,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:42,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:42,259 INFO L225 Difference]: With dead ends: 7044 [2024-10-24 01:16:42,259 INFO L226 Difference]: Without dead ends: 4103 [2024-10-24 01:16:42,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:16:42,268 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1230 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:42,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 862 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 01:16:42,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2024-10-24 01:16:42,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 2959. [2024-10-24 01:16:42,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2959 states, 2702 states have (on average 1.6110288675055515) internal successors, (4353), 2711 states have internal predecessors, (4353), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-24 01:16:42,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 4776 transitions. [2024-10-24 01:16:42,488 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 4776 transitions. Word has length 160 [2024-10-24 01:16:42,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:42,489 INFO L471 AbstractCegarLoop]: Abstraction has 2959 states and 4776 transitions. [2024-10-24 01:16:42,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:42,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 4776 transitions. [2024-10-24 01:16:42,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:42,492 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:42,492 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] [2024-10-24 01:16:42,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:16:42,493 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:42,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:42,493 INFO L85 PathProgramCache]: Analyzing trace with hash -918547203, now seen corresponding path program 1 times [2024-10-24 01:16:42,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:42,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096549732] [2024-10-24 01:16:42,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:42,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:42,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:42,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:42,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:42,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:42,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:42,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:42,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096549732] [2024-10-24 01:16:42,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096549732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:42,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:42,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:42,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954543336] [2024-10-24 01:16:42,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:42,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:42,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:42,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:42,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:42,752 INFO L87 Difference]: Start difference. First operand 2959 states and 4776 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:46,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:46,338 INFO L93 Difference]: Finished difference Result 10453 states and 17108 transitions. [2024-10-24 01:16:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:16:46,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:46,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:46,371 INFO L225 Difference]: With dead ends: 10453 [2024-10-24 01:16:46,372 INFO L226 Difference]: Without dead ends: 7512 [2024-10-24 01:16:46,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:16:46,382 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1488 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 3603 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 3666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:46,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1990 Invalid, 3666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3603 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 01:16:46,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7512 states. [2024-10-24 01:16:46,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7512 to 5571. [2024-10-24 01:16:46,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5571 states, 5090 states have (on average 1.606090373280943) internal successors, (8175), 5107 states have internal predecessors, (8175), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-10-24 01:16:46,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5571 states to 5571 states and 8996 transitions. [2024-10-24 01:16:46,812 INFO L78 Accepts]: Start accepts. Automaton has 5571 states and 8996 transitions. Word has length 160 [2024-10-24 01:16:46,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:46,812 INFO L471 AbstractCegarLoop]: Abstraction has 5571 states and 8996 transitions. [2024-10-24 01:16:46,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:46,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5571 states and 8996 transitions. [2024-10-24 01:16:46,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:46,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:46,818 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] [2024-10-24 01:16:46,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:16:46,818 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:46,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:46,820 INFO L85 PathProgramCache]: Analyzing trace with hash -629727813, now seen corresponding path program 1 times [2024-10-24 01:16:46,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:46,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622875985] [2024-10-24 01:16:46,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:46,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:46,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:46,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:47,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:47,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:47,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:47,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:47,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:47,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622875985] [2024-10-24 01:16:47,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622875985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:47,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:47,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:47,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984931007] [2024-10-24 01:16:47,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:47,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:47,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:47,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:47,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:47,086 INFO L87 Difference]: Start difference. First operand 5571 states and 8996 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:51,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:51,151 INFO L93 Difference]: Finished difference Result 19939 states and 32658 transitions. [2024-10-24 01:16:51,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:16:51,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:51,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:51,210 INFO L225 Difference]: With dead ends: 19939 [2024-10-24 01:16:51,210 INFO L226 Difference]: Without dead ends: 14386 [2024-10-24 01:16:51,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:16:51,233 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1487 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 3590 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 3653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:51,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1990 Invalid, 3653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3590 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-24 01:16:51,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14386 states. [2024-10-24 01:16:51,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14386 to 10808. [2024-10-24 01:16:51,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10808 states, 9879 states have (on average 1.603097479501974) internal successors, (15837), 9912 states have internal predecessors, (15837), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-10-24 01:16:52,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10808 states to 10808 states and 17508 transitions. [2024-10-24 01:16:52,104 INFO L78 Accepts]: Start accepts. Automaton has 10808 states and 17508 transitions. Word has length 160 [2024-10-24 01:16:52,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:52,105 INFO L471 AbstractCegarLoop]: Abstraction has 10808 states and 17508 transitions. [2024-10-24 01:16:52,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:52,106 INFO L276 IsEmpty]: Start isEmpty. Operand 10808 states and 17508 transitions. [2024-10-24 01:16:52,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:52,115 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:52,115 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] [2024-10-24 01:16:52,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:16:52,115 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:52,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:52,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1174600387, now seen corresponding path program 1 times [2024-10-24 01:16:52,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:52,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840216756] [2024-10-24 01:16:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:52,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:52,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:52,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:52,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:52,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:52,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:52,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:52,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840216756] [2024-10-24 01:16:52,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840216756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:52,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:52,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:52,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121524627] [2024-10-24 01:16:52,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:52,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:52,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:52,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:52,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:52,394 INFO L87 Difference]: Start difference. First operand 10808 states and 17508 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:56,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:16:56,611 INFO L93 Difference]: Finished difference Result 38910 states and 63948 transitions. [2024-10-24 01:16:56,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:16:56,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:16:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:16:56,734 INFO L225 Difference]: With dead ends: 38910 [2024-10-24 01:16:56,734 INFO L226 Difference]: Without dead ends: 28120 [2024-10-24 01:16:56,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:16:56,779 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 1584 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 2992 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 3091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:16:56,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 1296 Invalid, 3091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2992 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 01:16:56,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28120 states. [2024-10-24 01:16:58,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28120 to 21313. [2024-10-24 01:16:58,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21313 states, 19488 states have (on average 1.6013444170771758) internal successors, (31207), 19553 states have internal predecessors, (31207), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-24 01:16:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21313 states to 21313 states and 34740 transitions. [2024-10-24 01:16:58,631 INFO L78 Accepts]: Start accepts. Automaton has 21313 states and 34740 transitions. Word has length 160 [2024-10-24 01:16:58,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:16:58,632 INFO L471 AbstractCegarLoop]: Abstraction has 21313 states and 34740 transitions. [2024-10-24 01:16:58,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:16:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 21313 states and 34740 transitions. [2024-10-24 01:16:58,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:16:58,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:16:58,649 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] [2024-10-24 01:16:58,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:16:58,649 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:16:58,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:16:58,650 INFO L85 PathProgramCache]: Analyzing trace with hash -499440261, now seen corresponding path program 1 times [2024-10-24 01:16:58,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:16:58,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935744376] [2024-10-24 01:16:58,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:16:58,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:16:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:58,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:16:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:58,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:16:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:58,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:16:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:58,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:16:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:58,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:16:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:16:58,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:16:58,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:16:58,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935744376] [2024-10-24 01:16:58,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935744376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:16:58,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:16:58,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:16:58,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866425187] [2024-10-24 01:16:58,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:16:58,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:16:58,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:16:58,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:16:58,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:16:58,931 INFO L87 Difference]: Start difference. First operand 21313 states and 34740 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:01,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:01,839 INFO L93 Difference]: Finished difference Result 49848 states and 82690 transitions. [2024-10-24 01:17:01,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:17:01,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:17:01,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:01,950 INFO L225 Difference]: With dead ends: 49848 [2024-10-24 01:17:01,950 INFO L226 Difference]: Without dead ends: 28553 [2024-10-24 01:17:02,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:17:02,006 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1237 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:02,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 862 Invalid, 1719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 01:17:02,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28553 states. [2024-10-24 01:17:03,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28553 to 21313. [2024-10-24 01:17:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21313 states, 19488 states have (on average 1.5980090311986863) internal successors, (31142), 19553 states have internal predecessors, (31142), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-24 01:17:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21313 states to 21313 states and 34675 transitions. [2024-10-24 01:17:03,815 INFO L78 Accepts]: Start accepts. Automaton has 21313 states and 34675 transitions. Word has length 160 [2024-10-24 01:17:03,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:03,816 INFO L471 AbstractCegarLoop]: Abstraction has 21313 states and 34675 transitions. [2024-10-24 01:17:03,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:03,816 INFO L276 IsEmpty]: Start isEmpty. Operand 21313 states and 34675 transitions. [2024-10-24 01:17:03,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:17:03,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:03,833 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] [2024-10-24 01:17:03,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:17:03,833 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:03,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:03,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1447492227, now seen corresponding path program 1 times [2024-10-24 01:17:03,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:03,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228013571] [2024-10-24 01:17:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:03,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:03,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:04,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:17:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:04,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:17:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:04,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:17:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:04,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:17:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:04,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:04,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228013571] [2024-10-24 01:17:04,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228013571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:04,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:04,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:04,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832250544] [2024-10-24 01:17:04,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:04,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:04,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:04,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:04,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:04,142 INFO L87 Difference]: Start difference. First operand 21313 states and 34675 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:11,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:11,348 INFO L93 Difference]: Finished difference Result 86449 states and 142352 transitions. [2024-10-24 01:17:11,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:11,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:17:11,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:11,587 INFO L225 Difference]: With dead ends: 86449 [2024-10-24 01:17:11,588 INFO L226 Difference]: Without dead ends: 65154 [2024-10-24 01:17:11,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:11,668 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1914 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 3510 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 3576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:11,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 1983 Invalid, 3576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3510 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-24 01:17:11,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65154 states. [2024-10-24 01:17:14,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65154 to 42388. [2024-10-24 01:17:14,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42388 states, 38835 states have (on average 1.5976310029612464) internal successors, (62044), 38964 states have internal predecessors, (62044), 2650 states have call successors, (2650), 774 states have call predecessors, (2650), 902 states have return successors, (4965), 2777 states have call predecessors, (4965), 2650 states have call successors, (4965) [2024-10-24 01:17:14,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42388 states to 42388 states and 69659 transitions. [2024-10-24 01:17:14,993 INFO L78 Accepts]: Start accepts. Automaton has 42388 states and 69659 transitions. Word has length 160 [2024-10-24 01:17:14,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:17:14,993 INFO L471 AbstractCegarLoop]: Abstraction has 42388 states and 69659 transitions. [2024-10-24 01:17:14,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 42388 states and 69659 transitions. [2024-10-24 01:17:15,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:17:15,026 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:17:15,027 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] [2024-10-24 01:17:15,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:17:15,027 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:17:15,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:17:15,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1881997825, now seen corresponding path program 1 times [2024-10-24 01:17:15,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:17:15,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622469740] [2024-10-24 01:17:15,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:17:15,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:17:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:15,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 01:17:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:15,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 01:17:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:15,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 01:17:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:15,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 01:17:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:15,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 01:17:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:17:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:17:15,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:17:15,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622469740] [2024-10-24 01:17:15,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622469740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:17:15,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:17:15,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:17:15,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061259559] [2024-10-24 01:17:15,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:17:15,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:17:15,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:17:15,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:17:15,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:17:15,518 INFO L87 Difference]: Start difference. First operand 42388 states and 69659 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 01:17:25,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:17:25,776 INFO L93 Difference]: Finished difference Result 170274 states and 283114 transitions. [2024-10-24 01:17:25,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:17:25,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 5 states have internal predecessors, (150), 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 160 [2024-10-24 01:17:25,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:17:26,502 INFO L225 Difference]: With dead ends: 170274 [2024-10-24 01:17:26,502 INFO L226 Difference]: Without dead ends: 127904 [2024-10-24 01:17:26,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:17:26,698 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 1579 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 4173 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 1979 SdHoareTripleChecker+Invalid, 4238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:17:26,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 1979 Invalid, 4238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4173 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 01:17:26,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127904 states.