./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:16:15,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:16:15,908 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:16:15,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:16:15,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:16:15,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:16:15,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:16:15,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:16:15,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:16:15,951 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:16:15,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:16:15,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:16:15,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:16:15,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:16:15,953 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:16:15,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:16:15,954 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:16:15,955 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:16:15,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:16:15,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:16:15,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:16:15,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:16:15,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:16:15,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:16:15,957 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:16:15,957 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:16:15,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:16:15,958 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:16:15,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:16:15,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:16:15,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:16:15,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:16:15,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:16:15,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:16:15,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:16:15,964 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:16:15,965 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:16:15,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:16:15,965 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:16:15,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:16:15,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:16:15,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:16:15,966 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 [2024-10-11 03:16:16,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:16:16,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:16:16,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:16:16,242 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:16:16,242 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:16:16,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c [2024-10-11 03:16:17,747 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:16:17,999 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:16:18,000 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c [2024-10-11 03:16:18,035 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a9039717d/1729719552214bc0aae70af9e0a5efd5/FLAGdad17de54 [2024-10-11 03:16:18,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a9039717d/1729719552214bc0aae70af9e0a5efd5 [2024-10-11 03:16:18,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:16:18,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:16:18,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:16:18,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:16:18,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:16:18,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:18,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4918ae58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18, skipping insertion in model container [2024-10-11 03:16:18,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:18,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:16:18,592 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c[706,719] [2024-10-11 03:16:18,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:16:18,786 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:16:18,799 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c[706,719] [2024-10-11 03:16:18,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:16:18,892 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:16:18,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18 WrapperNode [2024-10-11 03:16:18,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:16:18,894 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:16:18,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:16:18,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:16:18,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:18,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:18,977 INFO L138 Inliner]: procedures = 56, calls = 71, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 974 [2024-10-11 03:16:18,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:16:18,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:16:18,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:16:18,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:16:18,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:18,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:19,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:19,038 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]. [2024-10-11 03:16:19,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:19,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:19,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:19,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:19,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:19,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:19,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:16:19,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:16:19,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:16:19,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:16:19,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (1/1) ... [2024-10-11 03:16:19,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:16:19,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:16:19,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:16:19,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:16:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:16:19,205 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-11 03:16:19,206 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-11 03:16:19,206 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-11 03:16:19,207 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-11 03:16:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-11 03:16:19,207 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-11 03:16:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-11 03:16:19,207 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-11 03:16:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-11 03:16:19,207 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-11 03:16:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-11 03:16:19,228 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-11 03:16:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:16:19,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:16:19,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:16:19,404 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:16:19,406 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:16:20,448 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2024-10-11 03:16:20,449 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:16:20,542 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:16:20,543 INFO L314 CfgBuilder]: Removed 18 assume(true) statements. [2024-10-11 03:16:20,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:16:20 BoogieIcfgContainer [2024-10-11 03:16:20,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:16:20,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:16:20,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:16:20,550 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:16:20,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:16:18" (1/3) ... [2024-10-11 03:16:20,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e19cfdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:16:20, skipping insertion in model container [2024-10-11 03:16:20,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:16:18" (2/3) ... [2024-10-11 03:16:20,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e19cfdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:16:20, skipping insertion in model container [2024-10-11 03:16:20,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:16:20" (3/3) ... [2024-10-11 03:16:20,553 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2024-10-11 03:16:20,569 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:16:20,569 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:16:20,647 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:16:20,655 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;@7784065c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:16:20,656 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:16:20,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 387 states, 353 states have (on average 1.745042492917847) internal successors, (616), 355 states have internal predecessors, (616), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 03:16:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 03:16:20,688 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:20,689 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:20,690 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:20,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:20,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1545450111, now seen corresponding path program 1 times [2024-10-11 03:16:20,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:20,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900368159] [2024-10-11 03:16:20,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:20,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:16:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 03:16:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 03:16:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:16:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:16:21,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:21,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900368159] [2024-10-11 03:16:21,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900368159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:21,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:21,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:16:21,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652230879] [2024-10-11 03:16:21,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:21,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:16:21,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:16:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:16:21,577 INFO L87 Difference]: Start difference. First operand has 387 states, 353 states have (on average 1.745042492917847) internal successors, (616), 355 states have internal predecessors, (616), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:24,042 INFO L93 Difference]: Finished difference Result 916 states and 1589 transitions. [2024-10-11 03:16:24,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:16:24,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-10-11 03:16:24,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:24,062 INFO L225 Difference]: With dead ends: 916 [2024-10-11 03:16:24,063 INFO L226 Difference]: Without dead ends: 533 [2024-10-11 03:16:24,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 03:16:24,076 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 1106 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:24,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 694 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 03:16:24,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-10-11 03:16:24,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 385. [2024-10-11 03:16:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 352 states have (on average 1.6363636363636365) internal successors, (576), 353 states have internal predecessors, (576), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 03:16:24,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 628 transitions. [2024-10-11 03:16:24,170 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 628 transitions. Word has length 176 [2024-10-11 03:16:24,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:24,171 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 628 transitions. [2024-10-11 03:16:24,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:24,172 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 628 transitions. [2024-10-11 03:16:24,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 03:16:24,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:24,179 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:24,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:16:24,180 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:24,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:24,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1635510401, now seen corresponding path program 1 times [2024-10-11 03:16:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:24,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774869257] [2024-10-11 03:16:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:24,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:24,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:16:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:24,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 03:16:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:24,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 03:16:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:24,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:16:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:16:24,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:24,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774869257] [2024-10-11 03:16:24,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774869257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:24,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:24,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:16:24,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216954958] [2024-10-11 03:16:24,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:24,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:16:24,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:24,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:16:24,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:16:24,595 INFO L87 Difference]: Start difference. First operand 385 states and 628 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:26,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:26,870 INFO L93 Difference]: Finished difference Result 904 states and 1494 transitions. [2024-10-11 03:16:26,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:16:26,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-10-11 03:16:26,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:26,875 INFO L225 Difference]: With dead ends: 904 [2024-10-11 03:16:26,875 INFO L226 Difference]: Without dead ends: 533 [2024-10-11 03:16:26,877 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 [2024-10-11 03:16:26,878 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 1095 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:26,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 689 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 03:16:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-10-11 03:16:26,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 385. [2024-10-11 03:16:26,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 352 states have (on average 1.6335227272727273) internal successors, (575), 353 states have internal predecessors, (575), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 03:16:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 627 transitions. [2024-10-11 03:16:26,931 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 627 transitions. Word has length 176 [2024-10-11 03:16:26,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:26,932 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 627 transitions. [2024-10-11 03:16:26,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:26,932 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 627 transitions. [2024-10-11 03:16:26,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 03:16:26,935 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:26,935 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:26,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:16:26,936 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:26,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:26,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1255587709, now seen corresponding path program 1 times [2024-10-11 03:16:26,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:26,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927809825] [2024-10-11 03:16:26,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:26,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:16:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 03:16:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 03:16:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:16:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:16:27,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:27,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927809825] [2024-10-11 03:16:27,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927809825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:27,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:27,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:27,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074096638] [2024-10-11 03:16:27,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:27,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:27,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:27,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:27,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:27,456 INFO L87 Difference]: Start difference. First operand 385 states and 627 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:32,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:32,957 INFO L93 Difference]: Finished difference Result 1817 states and 3024 transitions. [2024-10-11 03:16:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:16:32,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-10-11 03:16:32,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:32,968 INFO L225 Difference]: With dead ends: 1817 [2024-10-11 03:16:32,968 INFO L226 Difference]: Without dead ends: 1452 [2024-10-11 03:16:32,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:16:32,971 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 2481 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4283 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 4355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:32,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 2229 Invalid, 4355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4283 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-11 03:16:32,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2024-10-11 03:16:33,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 776. [2024-10-11 03:16:33,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 712 states have (on average 1.6446629213483146) internal successors, (1171), 715 states have internal predecessors, (1171), 49 states have call successors, (49), 12 states have call predecessors, (49), 14 states have return successors, (56), 50 states have call predecessors, (56), 49 states have call successors, (56) [2024-10-11 03:16:33,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1276 transitions. [2024-10-11 03:16:33,044 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1276 transitions. Word has length 176 [2024-10-11 03:16:33,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:33,045 INFO L471 AbstractCegarLoop]: Abstraction has 776 states and 1276 transitions. [2024-10-11 03:16:33,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1276 transitions. [2024-10-11 03:16:33,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 03:16:33,048 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:33,048 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:33,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:16:33,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:33,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:33,049 INFO L85 PathProgramCache]: Analyzing trace with hash -149603969, now seen corresponding path program 1 times [2024-10-11 03:16:33,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:33,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065287464] [2024-10-11 03:16:33,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:33,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:33,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:33,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:16:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:33,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 03:16:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:33,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 03:16:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:33,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:16:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:33,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:16:33,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:33,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065287464] [2024-10-11 03:16:33,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065287464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:33,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:33,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:33,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655670387] [2024-10-11 03:16:33,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:33,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:33,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:33,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:33,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:33,495 INFO L87 Difference]: Start difference. First operand 776 states and 1276 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:38,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:38,661 INFO L93 Difference]: Finished difference Result 3535 states and 5859 transitions. [2024-10-11 03:16:38,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:16:38,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-10-11 03:16:38,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:38,678 INFO L225 Difference]: With dead ends: 3535 [2024-10-11 03:16:38,679 INFO L226 Difference]: Without dead ends: 2781 [2024-10-11 03:16:38,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:16:38,686 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 2488 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2522 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 4195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:38,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2522 Valid, 2107 Invalid, 4195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 4112 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-11 03:16:38,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2024-10-11 03:16:38,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 1492. [2024-10-11 03:16:38,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1372 states have (on average 1.6355685131195334) internal successors, (2244), 1377 states have internal predecessors, (2244), 91 states have call successors, (91), 24 states have call predecessors, (91), 28 states have return successors, (108), 94 states have call predecessors, (108), 91 states have call successors, (108) [2024-10-11 03:16:38,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2443 transitions. [2024-10-11 03:16:38,816 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2443 transitions. Word has length 176 [2024-10-11 03:16:38,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:38,816 INFO L471 AbstractCegarLoop]: Abstraction has 1492 states and 2443 transitions. [2024-10-11 03:16:38,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:38,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2443 transitions. [2024-10-11 03:16:38,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 03:16:38,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:38,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:38,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:16:38,820 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:38,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:38,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1744729917, now seen corresponding path program 1 times [2024-10-11 03:16:38,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:38,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695379346] [2024-10-11 03:16:38,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:38,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:38,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:39,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:16:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:39,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 03:16:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:39,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 03:16:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:39,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:16:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:16:39,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:39,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695379346] [2024-10-11 03:16:39,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695379346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:39,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:39,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:39,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858988270] [2024-10-11 03:16:39,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:39,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:39,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:39,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:39,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:39,179 INFO L87 Difference]: Start difference. First operand 1492 states and 2443 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:43,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:43,957 INFO L93 Difference]: Finished difference Result 6907 states and 11410 transitions. [2024-10-11 03:16:43,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:16:43,958 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-10-11 03:16:43,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:43,986 INFO L225 Difference]: With dead ends: 6907 [2024-10-11 03:16:43,986 INFO L226 Difference]: Without dead ends: 5437 [2024-10-11 03:16:43,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:16:43,998 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 2539 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 3904 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 3987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:43,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 2108 Invalid, 3987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3904 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-11 03:16:44,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2024-10-11 03:16:44,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 2926. [2024-10-11 03:16:44,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2926 states, 2694 states have (on average 1.6302895322939865) internal successors, (4392), 2703 states have internal predecessors, (4392), 175 states have call successors, (175), 48 states have call predecessors, (175), 56 states have return successors, (218), 182 states have call predecessors, (218), 175 states have call successors, (218) [2024-10-11 03:16:44,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 4785 transitions. [2024-10-11 03:16:44,249 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 4785 transitions. Word has length 176 [2024-10-11 03:16:44,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:44,253 INFO L471 AbstractCegarLoop]: Abstraction has 2926 states and 4785 transitions. [2024-10-11 03:16:44,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:44,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 4785 transitions. [2024-10-11 03:16:44,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 03:16:44,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:44,257 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:44,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:16:44,258 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:44,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:44,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1103656513, now seen corresponding path program 1 times [2024-10-11 03:16:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:44,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306490995] [2024-10-11 03:16:44,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:44,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:44,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:44,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:16:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:44,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 03:16:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:44,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 03:16:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:44,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:16:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:44,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:16:44,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:44,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306490995] [2024-10-11 03:16:44,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306490995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:44,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:44,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:44,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145462396] [2024-10-11 03:16:44,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:44,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:44,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:44,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:44,627 INFO L87 Difference]: Start difference. First operand 2926 states and 4785 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:49,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:49,552 INFO L93 Difference]: Finished difference Result 13649 states and 22526 transitions. [2024-10-11 03:16:49,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:16:49,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-10-11 03:16:49,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:49,611 INFO L225 Difference]: With dead ends: 13649 [2024-10-11 03:16:49,611 INFO L226 Difference]: Without dead ends: 10745 [2024-10-11 03:16:49,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:16:49,628 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 2483 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4252 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 4326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 4252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:49,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 2225 Invalid, 4326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 4252 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-11 03:16:49,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2024-10-11 03:16:50,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 5800. [2024-10-11 03:16:50,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5800 states, 5344 states have (on average 1.627245508982036) internal successors, (8696), 5361 states have internal predecessors, (8696), 343 states have call successors, (343), 96 states have call predecessors, (343), 112 states have return successors, (456), 358 states have call predecessors, (456), 343 states have call successors, (456) [2024-10-11 03:16:50,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 9495 transitions. [2024-10-11 03:16:50,061 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 9495 transitions. Word has length 176 [2024-10-11 03:16:50,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:50,062 INFO L471 AbstractCegarLoop]: Abstraction has 5800 states and 9495 transitions. [2024-10-11 03:16:50,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:50,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 9495 transitions. [2024-10-11 03:16:50,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 03:16:50,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:50,067 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:50,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:16:50,067 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:50,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:50,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2026823939, now seen corresponding path program 1 times [2024-10-11 03:16:50,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:50,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085688613] [2024-10-11 03:16:50,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:50,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:50,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:50,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:16:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:50,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 03:16:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:50,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 03:16:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:50,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:16:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:50,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:16:50,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:50,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085688613] [2024-10-11 03:16:50,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085688613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:50,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:50,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:50,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075597525] [2024-10-11 03:16:50,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:50,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:50,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:50,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:50,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:50,415 INFO L87 Difference]: Start difference. First operand 5800 states and 9495 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:55,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:16:55,793 INFO L93 Difference]: Finished difference Result 27131 states and 44814 transitions. [2024-10-11 03:16:55,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:16:55,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-10-11 03:16:55,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:16:55,910 INFO L225 Difference]: With dead ends: 27131 [2024-10-11 03:16:55,910 INFO L226 Difference]: Without dead ends: 21353 [2024-10-11 03:16:55,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:16:55,940 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 2483 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4253 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 4327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 4253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:16:55,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 2227 Invalid, 4327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 4253 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-11 03:16:55,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21353 states. [2024-10-11 03:16:56,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21353 to 11562. [2024-10-11 03:16:56,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11562 states, 10658 states have (on average 1.6254456746106212) internal successors, (17324), 10691 states have internal predecessors, (17324), 679 states have call successors, (679), 192 states have call predecessors, (679), 224 states have return successors, (986), 710 states have call predecessors, (986), 679 states have call successors, (986) [2024-10-11 03:16:56,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11562 states to 11562 states and 18989 transitions. [2024-10-11 03:16:56,769 INFO L78 Accepts]: Start accepts. Automaton has 11562 states and 18989 transitions. Word has length 176 [2024-10-11 03:16:56,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:16:56,769 INFO L471 AbstractCegarLoop]: Abstraction has 11562 states and 18989 transitions. [2024-10-11 03:16:56,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:16:56,770 INFO L276 IsEmpty]: Start isEmpty. Operand 11562 states and 18989 transitions. [2024-10-11 03:16:56,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 03:16:56,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:16:56,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:16:56,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:16:56,778 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:16:56,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:16:56,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1640961537, now seen corresponding path program 1 times [2024-10-11 03:16:56,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:16:56,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276297328] [2024-10-11 03:16:56,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:16:56,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:16:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:56,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:16:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:57,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:16:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:57,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 03:16:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:57,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 03:16:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:57,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:16:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:16:57,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:16:57,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:16:57,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276297328] [2024-10-11 03:16:57,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276297328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:16:57,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:16:57,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:16:57,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361783967] [2024-10-11 03:16:57,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:16:57,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:16:57,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:16:57,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:16:57,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:16:57,179 INFO L87 Difference]: Start difference. First operand 11562 states and 18989 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:17:03,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:17:03,371 INFO L93 Difference]: Finished difference Result 54093 states and 89578 transitions. [2024-10-11 03:17:03,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:17:03,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-10-11 03:17:03,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:17:03,582 INFO L225 Difference]: With dead ends: 54093 [2024-10-11 03:17:03,582 INFO L226 Difference]: Without dead ends: 42553 [2024-10-11 03:17:03,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:17:03,647 INFO L432 NwaCegarLoop]: 508 mSDtfsCounter, 2483 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4249 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 4323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 4249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:17:03,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 2228 Invalid, 4323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 4249 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-11 03:17:03,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42553 states. [2024-10-11 03:17:05,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42553 to 23116. [2024-10-11 03:17:05,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23116 states, 21316 states have (on average 1.6243197598048413) internal successors, (34624), 21381 states have internal predecessors, (34624), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 448 states have return successors, (2208), 1414 states have call predecessors, (2208), 1351 states have call successors, (2208) [2024-10-11 03:17:05,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23116 states to 23116 states and 38183 transitions. [2024-10-11 03:17:05,582 INFO L78 Accepts]: Start accepts. Automaton has 23116 states and 38183 transitions. Word has length 176 [2024-10-11 03:17:05,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:17:05,583 INFO L471 AbstractCegarLoop]: Abstraction has 23116 states and 38183 transitions. [2024-10-11 03:17:05,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:17:05,583 INFO L276 IsEmpty]: Start isEmpty. Operand 23116 states and 38183 transitions. [2024-10-11 03:17:05,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 03:17:05,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:17:05,598 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:17:05,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:17:05,599 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:17:05,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:17:05,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1905609027, now seen corresponding path program 1 times [2024-10-11 03:17:05,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:17:05,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813298803] [2024-10-11 03:17:05,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:17:05,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:17:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:05,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:17:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:05,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:17:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:05,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 03:17:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:05,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 03:17:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:05,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:17:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:05,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:17:05,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:17:05,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813298803] [2024-10-11 03:17:05,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813298803] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:17:05,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:17:05,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:17:05,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010614381] [2024-10-11 03:17:05,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:17:05,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:17:05,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:17:05,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:17:05,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:17:05,980 INFO L87 Difference]: Start difference. First operand 23116 states and 38183 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:17:14,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:17:14,307 INFO L93 Difference]: Finished difference Result 108015 states and 179702 transitions. [2024-10-11 03:17:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:17:14,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-10-11 03:17:14,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:17:14,671 INFO L225 Difference]: With dead ends: 108015 [2024-10-11 03:17:14,671 INFO L226 Difference]: Without dead ends: 84921 [2024-10-11 03:17:14,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:17:14,763 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 2489 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4230 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 4304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 4230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:17:14,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2523 Valid, 2227 Invalid, 4304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 4230 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-11 03:17:14,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84921 states. [2024-10-11 03:17:18,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84921 to 46286. [2024-10-11 03:17:18,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46286 states, 42694 states have (on average 1.6235536609359629) internal successors, (69316), 42823 states have internal predecessors, (69316), 2695 states have call successors, (2695), 768 states have call predecessors, (2695), 896 states have return successors, (5138), 2822 states have call predecessors, (5138), 2695 states have call successors, (5138) [2024-10-11 03:17:18,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46286 states to 46286 states and 77149 transitions. [2024-10-11 03:17:18,484 INFO L78 Accepts]: Start accepts. Automaton has 46286 states and 77149 transitions. Word has length 176 [2024-10-11 03:17:18,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:17:18,485 INFO L471 AbstractCegarLoop]: Abstraction has 46286 states and 77149 transitions. [2024-10-11 03:17:18,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:17:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 46286 states and 77149 transitions. [2024-10-11 03:17:18,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 03:17:18,510 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:17:18,510 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:17:18,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:17:18,511 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:17:18,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:17:18,511 INFO L85 PathProgramCache]: Analyzing trace with hash 25516607, now seen corresponding path program 1 times [2024-10-11 03:17:18,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:17:18,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190174485] [2024-10-11 03:17:18,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:17:18,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:17:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:18,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 03:17:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:18,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 03:17:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:18,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 03:17:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:18,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 03:17:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:18,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-11 03:17:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:17:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:17:18,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:17:18,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190174485] [2024-10-11 03:17:18,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190174485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:17:18,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:17:18,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:17:18,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262392811] [2024-10-11 03:17:18,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:17:18,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:17:18,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:17:18,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:17:18,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:17:18,819 INFO L87 Difference]: Start difference. First operand 46286 states and 77149 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 03:17:30,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:17:30,555 INFO L93 Difference]: Finished difference Result 215732 states and 361546 transitions. [2024-10-11 03:17:30,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 03:17:30,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 176 [2024-10-11 03:17:30,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:17:31,663 INFO L225 Difference]: With dead ends: 215732 [2024-10-11 03:17:31,663 INFO L226 Difference]: Without dead ends: 169468 [2024-10-11 03:17:31,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-10-11 03:17:31,845 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 2532 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 4110 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2566 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 4184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 4110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:17:31,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2566 Valid, 2226 Invalid, 4184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 4110 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-11 03:17:31,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169468 states.