./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/transmitter.15.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05397c7941b2acd95b1b6d02c6c64b476ab8b290a5b56301ff8db7ca1986067b --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:31:48,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:31:48,923 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:31:48,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:31:48,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:31:48,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:31:48,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:31:48,953 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:31:48,953 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:31:48,955 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:31:48,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:31:48,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:31:48,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:31:48,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:31:48,956 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:31:48,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:31:48,959 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:31:48,959 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:31:48,959 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:31:48,959 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:31:48,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:31:48,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:31:48,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:31:48,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:31:48,960 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:31:48,961 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:31:48,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:31:48,961 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:31:48,961 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:31:48,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:31:48,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:31:48,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:31:48,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:31:48,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:31:48,962 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:31:48,962 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:31:48,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:31:48,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:31:48,963 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:31:48,964 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:31:48,965 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:31:48,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:31:48,965 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05397c7941b2acd95b1b6d02c6c64b476ab8b290a5b56301ff8db7ca1986067b [2024-11-08 15:31:49,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:31:49,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:31:49,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:31:49,193 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:31:49,193 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:31:49,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.15.cil.c [2024-11-08 15:31:50,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:31:50,556 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:31:50,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.15.cil.c [2024-11-08 15:31:50,570 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfc9cb709/03038541b238467cb4dd647e787e8212/FLAG03127e0eb [2024-11-08 15:31:50,939 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfc9cb709/03038541b238467cb4dd647e787e8212 [2024-11-08 15:31:50,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:31:50,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:31:50,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:31:50,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:31:50,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:31:50,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:31:50" (1/1) ... [2024-11-08 15:31:50,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf24845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:50, skipping insertion in model container [2024-11-08 15:31:50,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:31:50" (1/1) ... [2024-11-08 15:31:50,978 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:31:51,139 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.15.cil.c[706,719] [2024-11-08 15:31:51,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:31:51,258 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:31:51,266 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.15.cil.c[706,719] [2024-11-08 15:31:51,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:31:51,351 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:31:51,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51 WrapperNode [2024-11-08 15:31:51,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:31:51,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:31:51,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:31:51,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:31:51,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,411 INFO L138 Inliner]: procedures = 54, calls = 69, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 918 [2024-11-08 15:31:51,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:31:51,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:31:51,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:31:51,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:31:51,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,424 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,444 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]. [2024-11-08 15:31:51,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,445 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,485 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:31:51,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:31:51,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:31:51,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:31:51,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (1/1) ... [2024-11-08 15:31:51,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:31:51,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:31:51,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:31:51,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:31:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:31:51,574 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-08 15:31:51,574 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-08 15:31:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-08 15:31:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-08 15:31:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-08 15:31:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-08 15:31:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-08 15:31:51,576 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-08 15:31:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-08 15:31:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-08 15:31:51,577 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-08 15:31:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-08 15:31:51,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:31:51,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:31:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:31:51,681 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:31:51,683 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:31:52,370 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-08 15:31:52,370 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:31:52,390 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:31:52,390 INFO L316 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-08 15:31:52,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:31:52 BoogieIcfgContainer [2024-11-08 15:31:52,391 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:31:52,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:31:52,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:31:52,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:31:52,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:31:50" (1/3) ... [2024-11-08 15:31:52,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d712a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:31:52, skipping insertion in model container [2024-11-08 15:31:52,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:31:51" (2/3) ... [2024-11-08 15:31:52,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d712a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:31:52, skipping insertion in model container [2024-11-08 15:31:52,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:31:52" (3/3) ... [2024-11-08 15:31:52,397 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2024-11-08 15:31:52,409 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:31:52,409 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:31:52,468 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:31:52,475 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;@24362df4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:31:52,475 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:31:52,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 416 states, 382 states have (on average 1.643979057591623) internal successors, (628), 384 states have internal predecessors, (628), 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) [2024-11-08 15:31:52,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:31:52,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:52,497 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:52,497 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:52,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:52,502 INFO L85 PathProgramCache]: Analyzing trace with hash 988091697, now seen corresponding path program 1 times [2024-11-08 15:31:52,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:52,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000498228] [2024-11-08 15:31:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:52,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:52,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:52,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:53,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:31:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:53,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:31:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:53,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:31:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:53,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:53,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000498228] [2024-11-08 15:31:53,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000498228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:53,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:53,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:31:53,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600523702] [2024-11-08 15:31:53,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:53,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:31:53,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:53,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:31:53,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:31:53,123 INFO L87 Difference]: Start difference. First operand has 416 states, 382 states have (on average 1.643979057591623) internal successors, (628), 384 states have internal predecessors, (628), 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 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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) [2024-11-08 15:31:54,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:54,860 INFO L93 Difference]: Finished difference Result 976 states and 1610 transitions. [2024-11-08 15:31:54,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:31:54,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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 184 [2024-11-08 15:31:54,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:54,877 INFO L225 Difference]: With dead ends: 976 [2024-11-08 15:31:54,877 INFO L226 Difference]: Without dead ends: 562 [2024-11-08 15:31:54,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:31:54,884 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 1112 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:54,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 823 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:31:54,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-08 15:31:54,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 411. [2024-11-08 15:31:54,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 378 states have (on average 1.552910052910053) internal successors, (587), 379 states have internal predecessors, (587), 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) [2024-11-08 15:31:54,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 639 transitions. [2024-11-08 15:31:54,966 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 639 transitions. Word has length 184 [2024-11-08 15:31:54,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:54,966 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 639 transitions. [2024-11-08 15:31:54,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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) [2024-11-08 15:31:54,967 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 639 transitions. [2024-11-08 15:31:54,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:31:54,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:54,970 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:54,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:31:54,971 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:54,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:54,972 INFO L85 PathProgramCache]: Analyzing trace with hash -611057361, now seen corresponding path program 1 times [2024-11-08 15:31:54,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:54,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81833958] [2024-11-08 15:31:54,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:54,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:55,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:55,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:55,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:31:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:55,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:31:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:55,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:31:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:55,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:55,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:55,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81833958] [2024-11-08 15:31:55,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81833958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:55,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:55,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:31:55,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540820042] [2024-11-08 15:31:55,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:55,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:31:55,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:55,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:31:55,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:31:55,187 INFO L87 Difference]: Start difference. First operand 411 states and 639 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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) [2024-11-08 15:31:56,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:56,686 INFO L93 Difference]: Finished difference Result 959 states and 1514 transitions. [2024-11-08 15:31:56,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:31:56,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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 184 [2024-11-08 15:31:56,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:56,690 INFO L225 Difference]: With dead ends: 959 [2024-11-08 15:31:56,690 INFO L226 Difference]: Without dead ends: 562 [2024-11-08 15:31:56,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:31:56,693 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 1099 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:56,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 809 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:31:56,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-08 15:31:56,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 411. [2024-11-08 15:31:56,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 378 states have (on average 1.5502645502645502) internal successors, (586), 379 states have internal predecessors, (586), 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) [2024-11-08 15:31:56,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 638 transitions. [2024-11-08 15:31:56,727 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 638 transitions. Word has length 184 [2024-11-08 15:31:56,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:56,729 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 638 transitions. [2024-11-08 15:31:56,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 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) [2024-11-08 15:31:56,729 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 638 transitions. [2024-11-08 15:31:56,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:31:56,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:56,735 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:56,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:31:56,736 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:56,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash -701117651, now seen corresponding path program 1 times [2024-11-08 15:31:56,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:56,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685635750] [2024-11-08 15:31:56,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:56,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:56,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:56,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:56,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:31:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:56,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:31:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:57,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:31:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:57,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:57,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:57,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685635750] [2024-11-08 15:31:57,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685635750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:57,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:57,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:31:57,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671826863] [2024-11-08 15:31:57,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:57,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:31:57,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:57,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:31:57,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:31:57,012 INFO L87 Difference]: Start difference. First operand 411 states and 638 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 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) [2024-11-08 15:31:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:31:59,488 INFO L93 Difference]: Finished difference Result 1512 states and 2417 transitions. [2024-11-08 15:31:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 15:31:59,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 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 184 [2024-11-08 15:31:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:31:59,495 INFO L225 Difference]: With dead ends: 1512 [2024-11-08 15:31:59,495 INFO L226 Difference]: Without dead ends: 1122 [2024-11-08 15:31:59,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:31:59,499 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 1662 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 2492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:31:59,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 1389 Invalid, 2492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 15:31:59,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-11-08 15:31:59,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 821. [2024-11-08 15:31:59,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 760 states have (on average 1.5605263157894738) internal successors, (1186), 762 states have internal predecessors, (1186), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-08 15:31:59,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1283 transitions. [2024-11-08 15:31:59,547 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1283 transitions. Word has length 184 [2024-11-08 15:31:59,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:31:59,548 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1283 transitions. [2024-11-08 15:31:59,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 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) [2024-11-08 15:31:59,548 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1283 transitions. [2024-11-08 15:31:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:31:59,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:31:59,550 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:31:59,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:31:59,551 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:31:59,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:31:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash 319751884, now seen corresponding path program 1 times [2024-11-08 15:31:59,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:31:59,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510331180] [2024-11-08 15:31:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:31:59,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:31:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:59,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:31:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:59,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:31:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:59,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:31:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:59,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:31:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:59,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:31:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:31:59,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:31:59,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:31:59,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510331180] [2024-11-08 15:31:59,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510331180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:31:59,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:31:59,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:31:59,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320698654] [2024-11-08 15:31:59,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:31:59,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:31:59,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:31:59,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:31:59,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:31:59,864 INFO L87 Difference]: Start difference. First operand 821 states and 1283 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:03,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:03,774 INFO L93 Difference]: Finished difference Result 2696 states and 4278 transitions. [2024-11-08 15:32:03,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:32:03,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-08 15:32:03,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:03,782 INFO L225 Difference]: With dead ends: 2696 [2024-11-08 15:32:03,782 INFO L226 Difference]: Without dead ends: 1896 [2024-11-08 15:32:03,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:32:03,785 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 1841 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4853 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 4916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:03,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 2732 Invalid, 4916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 4853 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 15:32:03,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2024-11-08 15:32:03,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1203. [2024-11-08 15:32:03,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1114 states have (on average 1.5529622980251347) internal successors, (1730), 1117 states have internal predecessors, (1730), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-08 15:32:03,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1871 transitions. [2024-11-08 15:32:03,839 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1871 transitions. Word has length 184 [2024-11-08 15:32:03,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:03,839 INFO L471 AbstractCegarLoop]: Abstraction has 1203 states and 1871 transitions. [2024-11-08 15:32:03,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:03,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1871 transitions. [2024-11-08 15:32:03,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:32:03,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:03,841 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:03,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:32:03,841 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:03,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:03,842 INFO L85 PathProgramCache]: Analyzing trace with hash -466246006, now seen corresponding path program 1 times [2024-11-08 15:32:03,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:03,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402875922] [2024-11-08 15:32:03,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:03,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:03,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:03,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:04,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:32:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:04,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:32:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:04,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:32:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:32:04,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:04,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402875922] [2024-11-08 15:32:04,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402875922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:04,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:32:04,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:32:04,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739926864] [2024-11-08 15:32:04,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:04,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:32:04,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:04,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:32:04,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:04,076 INFO L87 Difference]: Start difference. First operand 1203 states and 1871 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:07,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:07,753 INFO L93 Difference]: Finished difference Result 4159 states and 6588 transitions. [2024-11-08 15:32:07,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:32:07,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-08 15:32:07,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:07,763 INFO L225 Difference]: With dead ends: 4159 [2024-11-08 15:32:07,763 INFO L226 Difference]: Without dead ends: 2977 [2024-11-08 15:32:07,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:32:07,766 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1835 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4832 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:07,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 2730 Invalid, 4897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4832 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 15:32:07,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2024-11-08 15:32:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 1971. [2024-11-08 15:32:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1826 states have (on average 1.5470974808324205) internal successors, (2825), 1831 states have internal predecessors, (2825), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-08 15:32:07,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 3058 transitions. [2024-11-08 15:32:07,904 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 3058 transitions. Word has length 184 [2024-11-08 15:32:07,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:07,905 INFO L471 AbstractCegarLoop]: Abstraction has 1971 states and 3058 transitions. [2024-11-08 15:32:07,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:07,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 3058 transitions. [2024-11-08 15:32:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:32:07,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:07,907 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:07,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:32:07,907 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:07,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:07,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1633492424, now seen corresponding path program 1 times [2024-11-08 15:32:07,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:07,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378693558] [2024-11-08 15:32:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:07,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:08,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:08,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:08,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:32:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:08,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:32:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:08,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:32:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:32:08,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:08,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378693558] [2024-11-08 15:32:08,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378693558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:08,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:32:08,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:32:08,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785954235] [2024-11-08 15:32:08,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:08,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:32:08,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:08,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:32:08,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:08,144 INFO L87 Difference]: Start difference. First operand 1971 states and 3058 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:11,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:11,797 INFO L93 Difference]: Finished difference Result 6983 states and 11015 transitions. [2024-11-08 15:32:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:32:11,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-08 15:32:11,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:11,813 INFO L225 Difference]: With dead ends: 6983 [2024-11-08 15:32:11,813 INFO L226 Difference]: Without dead ends: 5033 [2024-11-08 15:32:11,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:32:11,818 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1834 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4819 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:11,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 2730 Invalid, 4884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4819 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 15:32:11,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5033 states. [2024-11-08 15:32:11,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5033 to 3508. [2024-11-08 15:32:11,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 3251 states have (on average 1.5426022762227007) internal successors, (5015), 3260 states have internal predecessors, (5015), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-08 15:32:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 5438 transitions. [2024-11-08 15:32:11,968 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 5438 transitions. Word has length 184 [2024-11-08 15:32:11,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:11,968 INFO L471 AbstractCegarLoop]: Abstraction has 3508 states and 5438 transitions. [2024-11-08 15:32:11,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:11,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 5438 transitions. [2024-11-08 15:32:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:32:11,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:11,971 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:11,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:32:11,971 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:11,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:11,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1978320586, now seen corresponding path program 1 times [2024-11-08 15:32:11,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:11,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436987090] [2024-11-08 15:32:11,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:11,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:12,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:12,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:12,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:32:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:12,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:32:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:12,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:32:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:12,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:32:12,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:12,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436987090] [2024-11-08 15:32:12,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436987090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:12,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:32:12,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:32:12,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673766841] [2024-11-08 15:32:12,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:12,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:32:12,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:12,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:32:12,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:12,209 INFO L87 Difference]: Start difference. First operand 3508 states and 5438 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:16,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:16,042 INFO L93 Difference]: Finished difference Result 12630 states and 19885 transitions. [2024-11-08 15:32:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:32:16,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-08 15:32:16,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:16,066 INFO L225 Difference]: With dead ends: 12630 [2024-11-08 15:32:16,067 INFO L226 Difference]: Without dead ends: 9143 [2024-11-08 15:32:16,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:32:16,076 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1833 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4806 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:16,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 2730 Invalid, 4871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4806 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 15:32:16,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9143 states. [2024-11-08 15:32:16,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9143 to 6589. [2024-11-08 15:32:16,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6589 states, 6108 states have (on average 1.5397838899803535) internal successors, (9405), 6125 states have internal predecessors, (9405), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-08 15:32:16,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6589 states to 6589 states and 10226 transitions. [2024-11-08 15:32:16,364 INFO L78 Accepts]: Start accepts. Automaton has 6589 states and 10226 transitions. Word has length 184 [2024-11-08 15:32:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:16,368 INFO L471 AbstractCegarLoop]: Abstraction has 6589 states and 10226 transitions. [2024-11-08 15:32:16,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:16,368 INFO L276 IsEmpty]: Start isEmpty. Operand 6589 states and 10226 transitions. [2024-11-08 15:32:16,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:32:16,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:16,371 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:16,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:32:16,371 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:16,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:16,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1335691896, now seen corresponding path program 1 times [2024-11-08 15:32:16,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:16,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107452693] [2024-11-08 15:32:16,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:16,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:16,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:16,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:16,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:32:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:16,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:32:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:16,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:32:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:16,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:32:16,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:16,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107452693] [2024-11-08 15:32:16,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107452693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:16,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:32:16,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:32:16,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664532963] [2024-11-08 15:32:16,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:16,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:32:16,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:16,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:32:16,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:16,604 INFO L87 Difference]: Start difference. First operand 6589 states and 10226 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:20,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:20,617 INFO L93 Difference]: Finished difference Result 23925 states and 37687 transitions. [2024-11-08 15:32:20,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:32:20,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-08 15:32:20,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:20,661 INFO L225 Difference]: With dead ends: 23925 [2024-11-08 15:32:20,661 INFO L226 Difference]: Without dead ends: 17357 [2024-11-08 15:32:20,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:32:20,678 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1832 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4793 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:20,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 2730 Invalid, 4858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4793 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 15:32:20,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17357 states. [2024-11-08 15:32:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17357 to 12766. [2024-11-08 15:32:21,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12766 states, 11837 states have (on average 1.5381431105854524) internal successors, (18207), 11870 states have internal predecessors, (18207), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-08 15:32:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12766 states to 12766 states and 19878 transitions. [2024-11-08 15:32:21,309 INFO L78 Accepts]: Start accepts. Automaton has 12766 states and 19878 transitions. Word has length 184 [2024-11-08 15:32:21,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:21,310 INFO L471 AbstractCegarLoop]: Abstraction has 12766 states and 19878 transitions. [2024-11-08 15:32:21,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:21,310 INFO L276 IsEmpty]: Start isEmpty. Operand 12766 states and 19878 transitions. [2024-11-08 15:32:21,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:32:21,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:21,315 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:21,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:32:21,315 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:21,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:21,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1189803786, now seen corresponding path program 1 times [2024-11-08 15:32:21,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:21,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713318869] [2024-11-08 15:32:21,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:21,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:21,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:21,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:21,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:32:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:21,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:32:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:21,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:32:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:21,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:32:21,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:21,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713318869] [2024-11-08 15:32:21,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713318869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:21,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:32:21,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:32:21,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281125013] [2024-11-08 15:32:21,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:21,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:32:21,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:21,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:32:21,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:21,582 INFO L87 Difference]: Start difference. First operand 12766 states and 19878 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:23,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:23,418 INFO L93 Difference]: Finished difference Result 30176 states and 47776 transitions. [2024-11-08 15:32:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:32:23,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-08 15:32:23,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:23,469 INFO L225 Difference]: With dead ends: 30176 [2024-11-08 15:32:23,469 INFO L226 Difference]: Without dead ends: 17431 [2024-11-08 15:32:23,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:32:23,498 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 1474 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:23,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1141 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:32:23,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17431 states. [2024-11-08 15:32:24,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17431 to 12766. [2024-11-08 15:32:24,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12766 states, 11837 states have (on average 1.5353552420376784) internal successors, (18174), 11870 states have internal predecessors, (18174), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-08 15:32:24,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12766 states to 12766 states and 19845 transitions. [2024-11-08 15:32:24,201 INFO L78 Accepts]: Start accepts. Automaton has 12766 states and 19845 transitions. Word has length 184 [2024-11-08 15:32:24,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:24,201 INFO L471 AbstractCegarLoop]: Abstraction has 12766 states and 19845 transitions. [2024-11-08 15:32:24,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand 12766 states and 19845 transitions. [2024-11-08 15:32:24,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:32:24,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:24,208 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:24,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:32:24,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:24,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:24,209 INFO L85 PathProgramCache]: Analyzing trace with hash 578534728, now seen corresponding path program 1 times [2024-11-08 15:32:24,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:24,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098597542] [2024-11-08 15:32:24,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:24,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:24,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:24,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:24,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:32:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:24,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:32:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:24,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:32:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:32:24,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:24,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098597542] [2024-11-08 15:32:24,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098597542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:24,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:32:24,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:32:24,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265151690] [2024-11-08 15:32:24,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:24,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:32:24,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:24,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:32:24,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:24,456 INFO L87 Difference]: Start difference. First operand 12766 states and 19845 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:29,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:29,000 INFO L93 Difference]: Finished difference Result 46482 states and 73253 transitions. [2024-11-08 15:32:29,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:32:29,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-08 15:32:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:29,085 INFO L225 Difference]: With dead ends: 46482 [2024-11-08 15:32:29,085 INFO L226 Difference]: Without dead ends: 33737 [2024-11-08 15:32:29,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:32:29,113 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1824 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4755 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:29,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 2730 Invalid, 4820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4755 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 15:32:29,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33737 states. [2024-11-08 15:32:30,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33737 to 25184. [2024-11-08 15:32:30,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25184 states, 23359 states have (on average 1.5337129157926281) internal successors, (35826), 23424 states have internal predecessors, (35826), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-08 15:32:30,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25184 states to 25184 states and 39359 transitions. [2024-11-08 15:32:30,639 INFO L78 Accepts]: Start accepts. Automaton has 25184 states and 39359 transitions. Word has length 184 [2024-11-08 15:32:30,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:30,641 INFO L471 AbstractCegarLoop]: Abstraction has 25184 states and 39359 transitions. [2024-11-08 15:32:30,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:30,641 INFO L276 IsEmpty]: Start isEmpty. Operand 25184 states and 39359 transitions. [2024-11-08 15:32:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:32:30,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:30,650 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:30,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 15:32:30,650 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:30,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash -826656950, now seen corresponding path program 1 times [2024-11-08 15:32:30,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:30,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343371165] [2024-11-08 15:32:30,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:30,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:30,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:30,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:30,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:32:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:30,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:32:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:30,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:32:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:32:30,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:30,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343371165] [2024-11-08 15:32:30,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343371165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:30,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:32:30,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:32:30,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581257153] [2024-11-08 15:32:30,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:30,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:32:30,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:30,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:32:30,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:30,846 INFO L87 Difference]: Start difference. First operand 25184 states and 39359 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:33,182 INFO L93 Difference]: Finished difference Result 59232 states and 94159 transitions. [2024-11-08 15:32:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:32:33,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-08 15:32:33,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:33,283 INFO L225 Difference]: With dead ends: 59232 [2024-11-08 15:32:33,283 INFO L226 Difference]: Without dead ends: 34069 [2024-11-08 15:32:33,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:32:33,340 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 1401 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:33,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 1142 Invalid, 1798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:32:33,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34069 states. [2024-11-08 15:32:34,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34069 to 25184. [2024-11-08 15:32:34,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25184 states, 23359 states have (on average 1.5309302624256176) internal successors, (35761), 23424 states have internal predecessors, (35761), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-08 15:32:34,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25184 states to 25184 states and 39294 transitions. [2024-11-08 15:32:34,702 INFO L78 Accepts]: Start accepts. Automaton has 25184 states and 39294 transitions. Word has length 184 [2024-11-08 15:32:34,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:34,703 INFO L471 AbstractCegarLoop]: Abstraction has 25184 states and 39294 transitions. [2024-11-08 15:32:34,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:34,703 INFO L276 IsEmpty]: Start isEmpty. Operand 25184 states and 39294 transitions. [2024-11-08 15:32:34,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:32:34,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:34,714 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:34,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:32:34,714 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:34,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:34,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1067676936, now seen corresponding path program 1 times [2024-11-08 15:32:34,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:34,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128729441] [2024-11-08 15:32:34,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:34,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:34,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:34,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:34,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:32:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:34,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:32:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:34,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:32:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:32:34,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:34,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128729441] [2024-11-08 15:32:34,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128729441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:34,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:32:34,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:32:34,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808170148] [2024-11-08 15:32:34,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:34,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:32:34,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:34,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:32:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:34,960 INFO L87 Difference]: Start difference. First operand 25184 states and 39294 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:41,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:41,229 INFO L93 Difference]: Finished difference Result 91534 states and 144673 transitions. [2024-11-08 15:32:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:32:41,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-08 15:32:41,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:41,614 INFO L225 Difference]: With dead ends: 91534 [2024-11-08 15:32:41,614 INFO L226 Difference]: Without dead ends: 66371 [2024-11-08 15:32:41,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:32:41,667 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1818 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4698 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:41,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 2730 Invalid, 4763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4698 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 15:32:41,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66371 states. [2024-11-08 15:32:44,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66371 to 50211. [2024-11-08 15:32:44,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50211 states, 46594 states have (on average 1.529960939176718) internal successors, (71287), 46723 states have internal predecessors, (71287), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2024-11-08 15:32:44,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50211 states to 50211 states and 79030 transitions. [2024-11-08 15:32:44,643 INFO L78 Accepts]: Start accepts. Automaton has 50211 states and 79030 transitions. Word has length 184 [2024-11-08 15:32:44,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:44,643 INFO L471 AbstractCegarLoop]: Abstraction has 50211 states and 79030 transitions. [2024-11-08 15:32:44,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 50211 states and 79030 transitions. [2024-11-08 15:32:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:32:44,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:44,661 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:44,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:32:44,661 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:44,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:44,661 INFO L85 PathProgramCache]: Analyzing trace with hash 144509510, now seen corresponding path program 1 times [2024-11-08 15:32:44,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:44,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534975469] [2024-11-08 15:32:44,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:44,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:44,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:44,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:44,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:32:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:44,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:32:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:44,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:32:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:44,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:32:44,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:44,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534975469] [2024-11-08 15:32:44,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534975469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:44,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:32:44,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:32:44,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303604396] [2024-11-08 15:32:44,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:44,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:32:44,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:44,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:32:44,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:44,857 INFO L87 Difference]: Start difference. First operand 50211 states and 79030 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:53,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:32:53,514 INFO L93 Difference]: Finished difference Result 181903 states and 290155 transitions. [2024-11-08 15:32:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 15:32:53,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-08 15:32:53,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:32:53,969 INFO L225 Difference]: With dead ends: 181903 [2024-11-08 15:32:53,969 INFO L226 Difference]: Without dead ends: 131713 [2024-11-08 15:32:54,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:32:54,160 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1817 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4685 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:32:54,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 2730 Invalid, 4750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4685 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 15:32:54,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131713 states. [2024-11-08 15:32:58,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131713 to 100388. [2024-11-08 15:32:59,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100388 states, 93187 states have (on average 1.5294086084968934) internal successors, (142521), 93444 states have internal predecessors, (142521), 5402 states have call successors, (5402), 1542 states have call predecessors, (5402), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2024-11-08 15:32:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100388 states to 100388 states and 160142 transitions. [2024-11-08 15:32:59,500 INFO L78 Accepts]: Start accepts. Automaton has 100388 states and 160142 transitions. Word has length 184 [2024-11-08 15:32:59,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:32:59,501 INFO L471 AbstractCegarLoop]: Abstraction has 100388 states and 160142 transitions. [2024-11-08 15:32:59,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-08 15:32:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 100388 states and 160142 transitions. [2024-11-08 15:32:59,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-08 15:32:59,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:32:59,536 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:32:59,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:32:59,536 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:32:59,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:32:59,536 INFO L85 PathProgramCache]: Analyzing trace with hash 530371912, now seen corresponding path program 1 times [2024-11-08 15:32:59,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:32:59,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121306484] [2024-11-08 15:32:59,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:32:59,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:32:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:59,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:32:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:59,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:32:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:59,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:32:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:59,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 15:32:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:59,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 15:32:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:32:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:32:59,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:32:59,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121306484] [2024-11-08 15:32:59,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121306484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:32:59,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:32:59,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:32:59,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48627113] [2024-11-08 15:32:59,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:32:59,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:32:59,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:32:59,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:32:59,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:32:59,762 INFO L87 Difference]: Start difference. First operand 100388 states and 160142 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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)