./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/token_ring.13.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0dcd4461cca64e9ab41b6ad7ff4c6eaa4177bddcca1c612fa1571b77ac664a95 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:09:08,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:09:08,403 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:09:08,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:09:08,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:09:08,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:09:08,440 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:09:08,441 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:09:08,442 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:09:08,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:09:08,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:09:08,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:09:08,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:09:08,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:09:08,448 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:09:08,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:09:08,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:09:08,449 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:09:08,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:09:08,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:09:08,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:09:08,450 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:09:08,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:09:08,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:09:08,451 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:09:08,451 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:09:08,451 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:09:08,452 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:09:08,452 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:09:08,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:09:08,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:09:08,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:09:08,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:09:08,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:09:08,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:09:08,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:09:08,455 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:09:08,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:09:08,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:09:08,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:09:08,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:09:08,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:09:08,456 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dcd4461cca64e9ab41b6ad7ff4c6eaa4177bddcca1c612fa1571b77ac664a95 [2024-11-16 08:09:08,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:09:08,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:09:08,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:09:08,742 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:09:08,742 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:09:08,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.13.cil-2.c [2024-11-16 08:09:10,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:09:10,373 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:09:10,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.13.cil-2.c [2024-11-16 08:09:10,399 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a88f6fbd/968dfab4014e4a249afadc9c0b21f5f6/FLAG4cac55192 [2024-11-16 08:09:10,735 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a88f6fbd/968dfab4014e4a249afadc9c0b21f5f6 [2024-11-16 08:09:10,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:09:10,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:09:10,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:09:10,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:09:10,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:09:10,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:09:10" (1/1) ... [2024-11-16 08:09:10,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dce2a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:10, skipping insertion in model container [2024-11-16 08:09:10,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:09:10" (1/1) ... [2024-11-16 08:09:10,798 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:09:10,976 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/token_ring.13.cil-2.c[671,684] [2024-11-16 08:09:11,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:09:11,149 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:09:11,175 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/token_ring.13.cil-2.c[671,684] [2024-11-16 08:09:11,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:09:11,292 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:09:11,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11 WrapperNode [2024-11-16 08:09:11,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:09:11,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:09:11,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:09:11,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:09:11,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,363 INFO L138 Inliner]: procedures = 54, calls = 70, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 923 [2024-11-16 08:09:11,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:09:11,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:09:11,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:09:11,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:09:11,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,380 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,400 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]. [2024-11-16 08:09:11,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,417 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,428 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:09:11,429 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:09:11,429 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:09:11,429 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:09:11,430 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (1/1) ... [2024-11-16 08:09:11,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:09:11,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:09:11,472 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) [2024-11-16 08:09:11,475 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 [2024-11-16 08:09:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:09:11,523 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 08:09:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 08:09:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 08:09:11,524 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 08:09:11,524 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 08:09:11,525 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 08:09:11,525 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 08:09:11,526 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 08:09:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 08:09:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 08:09:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 08:09:11,527 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 08:09:11,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:09:11,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:09:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:09:11,668 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:09:11,671 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:09:12,738 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-16 08:09:12,738 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:09:12,764 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:09:12,765 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:09:12,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:09:12 BoogieIcfgContainer [2024-11-16 08:09:12,766 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:09:12,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:09:12,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:09:12,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:09:12,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:09:10" (1/3) ... [2024-11-16 08:09:12,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4a4d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:09:12, skipping insertion in model container [2024-11-16 08:09:12,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:09:11" (2/3) ... [2024-11-16 08:09:12,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4a4d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:09:12, skipping insertion in model container [2024-11-16 08:09:12,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:09:12" (3/3) ... [2024-11-16 08:09:12,774 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.13.cil-2.c [2024-11-16 08:09:12,789 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:09:12,790 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:09:12,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:09:12,922 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;@756f20db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:09:12,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:09:12,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 485 states, 450 states have (on average 1.551111111111111) internal successors, (698), 452 states have internal predecessors, (698), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-16 08:09:12,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:09:12,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:12,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:12,975 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:12,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:12,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1402938921, now seen corresponding path program 1 times [2024-11-16 08:09:12,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:12,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601462902] [2024-11-16 08:09:12,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:12,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:09:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:09:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:09:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 08:09:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:13,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:13,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601462902] [2024-11-16 08:09:13,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601462902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:13,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:13,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:09:13,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890839304] [2024-11-16 08:09:13,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:13,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:09:13,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:13,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:09:13,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:09:13,990 INFO L87 Difference]: Start difference. First operand has 485 states, 450 states have (on average 1.551111111111111) internal successors, (698), 452 states have internal predecessors, (698), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 6 states, 6 states have (on average 30.5) internal successors, (183), 4 states have internal predecessors, (183), 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) [2024-11-16 08:09:17,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:17,882 INFO L93 Difference]: Finished difference Result 1707 states and 2719 transitions. [2024-11-16 08:09:17,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:09:17,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.5) internal successors, (183), 4 states have internal predecessors, (183), 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 193 [2024-11-16 08:09:17,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:17,915 INFO L225 Difference]: With dead ends: 1707 [2024-11-16 08:09:17,915 INFO L226 Difference]: Without dead ends: 1233 [2024-11-16 08:09:17,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:09:17,928 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 1750 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:17,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 1698 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 08:09:17,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2024-11-16 08:09:18,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 927. [2024-11-16 08:09:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 864 states have (on average 1.5069444444444444) internal successors, (1302), 866 states have internal predecessors, (1302), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2024-11-16 08:09:18,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1403 transitions. [2024-11-16 08:09:18,106 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1403 transitions. Word has length 193 [2024-11-16 08:09:18,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:18,107 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1403 transitions. [2024-11-16 08:09:18,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.5) internal successors, (183), 4 states have internal predecessors, (183), 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) [2024-11-16 08:09:18,108 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1403 transitions. [2024-11-16 08:09:18,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:09:18,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:18,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:18,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:09:18,115 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:18,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:18,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1420559783, now seen corresponding path program 1 times [2024-11-16 08:09:18,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:18,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129288370] [2024-11-16 08:09:18,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:18,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:09:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:09:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:09:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 08:09:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:18,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:18,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129288370] [2024-11-16 08:09:18,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129288370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:18,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:18,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:18,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522631136] [2024-11-16 08:09:18,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:18,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:18,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:18,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:18,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:18,555 INFO L87 Difference]: Start difference. First operand 927 states and 1403 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:22,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:22,946 INFO L93 Difference]: Finished difference Result 2778 states and 4300 transitions. [2024-11-16 08:09:22,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:22,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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 193 [2024-11-16 08:09:22,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:22,957 INFO L225 Difference]: With dead ends: 2778 [2024-11-16 08:09:22,957 INFO L226 Difference]: Without dead ends: 1872 [2024-11-16 08:09:22,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:22,961 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 1790 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3846 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 3273 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:22,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 3273 Invalid, 3910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3846 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 08:09:22,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2024-11-16 08:09:23,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1362. [2024-11-16 08:09:23,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1270 states have (on average 1.499212598425197) internal successors, (1904), 1273 states have internal predecessors, (1904), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2024-11-16 08:09:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 2051 transitions. [2024-11-16 08:09:23,082 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 2051 transitions. Word has length 193 [2024-11-16 08:09:23,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:23,083 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 2051 transitions. [2024-11-16 08:09:23,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:23,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 2051 transitions. [2024-11-16 08:09:23,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:09:23,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:23,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:23,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:09:23,092 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:23,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:23,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1075644038, now seen corresponding path program 1 times [2024-11-16 08:09:23,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:23,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203651450] [2024-11-16 08:09:23,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:23,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:23,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:23,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:09:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:23,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:09:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:23,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:09:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:23,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 08:09:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:23,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:23,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203651450] [2024-11-16 08:09:23,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203651450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:23,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:23,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:23,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758891269] [2024-11-16 08:09:23,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:23,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:23,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:23,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:23,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:23,494 INFO L87 Difference]: Start difference. First operand 1362 states and 2051 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:27,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:27,432 INFO L93 Difference]: Finished difference Result 4404 states and 6798 transitions. [2024-11-16 08:09:27,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:27,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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 193 [2024-11-16 08:09:27,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:27,449 INFO L225 Difference]: With dead ends: 4404 [2024-11-16 08:09:27,449 INFO L226 Difference]: Without dead ends: 3063 [2024-11-16 08:09:27,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:27,455 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1785 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3821 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 3887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:27,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1805 Valid, 3271 Invalid, 3887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3821 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 08:09:27,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2024-11-16 08:09:27,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 2235. [2024-11-16 08:09:27,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 2085 states have (on average 1.4930455635491606) internal successors, (3113), 2090 states have internal predecessors, (3113), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2024-11-16 08:09:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3356 transitions. [2024-11-16 08:09:27,591 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3356 transitions. Word has length 193 [2024-11-16 08:09:27,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:27,592 INFO L471 AbstractCegarLoop]: Abstraction has 2235 states and 3356 transitions. [2024-11-16 08:09:27,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:27,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3356 transitions. [2024-11-16 08:09:27,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:09:27,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:27,595 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:27,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:09:27,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:27,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:27,596 INFO L85 PathProgramCache]: Analyzing trace with hash 371781063, now seen corresponding path program 1 times [2024-11-16 08:09:27,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:27,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670190257] [2024-11-16 08:09:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:27,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:27,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:27,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:09:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:27,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:09:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:27,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:09:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:27,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 08:09:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:27,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:27,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670190257] [2024-11-16 08:09:27,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670190257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:27,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084698115] [2024-11-16 08:09:27,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:27,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:27,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:27,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:27,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:27,923 INFO L87 Difference]: Start difference. First operand 2235 states and 3356 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:31,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:31,912 INFO L93 Difference]: Finished difference Result 7551 states and 11599 transitions. [2024-11-16 08:09:31,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:31,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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 193 [2024-11-16 08:09:31,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:31,935 INFO L225 Difference]: With dead ends: 7551 [2024-11-16 08:09:31,935 INFO L226 Difference]: Without dead ends: 5337 [2024-11-16 08:09:31,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:31,944 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1784 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3808 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1804 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 3874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:31,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1804 Valid, 3271 Invalid, 3874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3808 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 08:09:31,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5337 states. [2024-11-16 08:09:32,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5337 to 3984. [2024-11-16 08:09:32,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3984 states, 3718 states have (on average 1.4887036040882196) internal successors, (5535), 3727 states have internal predecessors, (5535), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2024-11-16 08:09:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3984 states to 3984 states and 5976 transitions. [2024-11-16 08:09:32,157 INFO L78 Accepts]: Start accepts. Automaton has 3984 states and 5976 transitions. Word has length 193 [2024-11-16 08:09:32,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:32,158 INFO L471 AbstractCegarLoop]: Abstraction has 3984 states and 5976 transitions. [2024-11-16 08:09:32,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:32,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3984 states and 5976 transitions. [2024-11-16 08:09:32,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:09:32,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:32,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:32,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:09:32,163 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:32,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash 626170470, now seen corresponding path program 1 times [2024-11-16 08:09:32,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:32,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060593891] [2024-11-16 08:09:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:32,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:32,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:32,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:09:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:32,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:09:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:32,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:09:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:32,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 08:09:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:32,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:32,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:32,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060593891] [2024-11-16 08:09:32,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060593891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:32,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:32,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:32,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013118822] [2024-11-16 08:09:32,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:32,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:32,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:32,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:32,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:32,499 INFO L87 Difference]: Start difference. First operand 3984 states and 5976 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:36,419 INFO L93 Difference]: Finished difference Result 13846 states and 21221 transitions. [2024-11-16 08:09:36,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:36,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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 193 [2024-11-16 08:09:36,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:36,463 INFO L225 Difference]: With dead ends: 13846 [2024-11-16 08:09:36,463 INFO L226 Difference]: Without dead ends: 9883 [2024-11-16 08:09:36,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:36,481 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1783 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3795 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 3861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:36,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1803 Valid, 3271 Invalid, 3861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3795 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 08:09:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9883 states. [2024-11-16 08:09:36,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9883 to 7489. [2024-11-16 08:09:36,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7489 states, 6991 states have (on average 1.4860534973537405) internal successors, (10389), 7008 states have internal predecessors, (10389), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2024-11-16 08:09:36,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7489 states to 7489 states and 11244 transitions. [2024-11-16 08:09:36,878 INFO L78 Accepts]: Start accepts. Automaton has 7489 states and 11244 transitions. Word has length 193 [2024-11-16 08:09:36,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:36,879 INFO L471 AbstractCegarLoop]: Abstraction has 7489 states and 11244 transitions. [2024-11-16 08:09:36,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:36,880 INFO L276 IsEmpty]: Start isEmpty. Operand 7489 states and 11244 transitions. [2024-11-16 08:09:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:09:36,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:36,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:36,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:09:36,887 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:36,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:36,888 INFO L85 PathProgramCache]: Analyzing trace with hash -335454745, now seen corresponding path program 1 times [2024-11-16 08:09:36,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:36,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383647173] [2024-11-16 08:09:36,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:36,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:37,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:37,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:09:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:37,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:09:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:37,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:09:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:37,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 08:09:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:37,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:37,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:37,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383647173] [2024-11-16 08:09:37,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383647173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:37,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:37,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:37,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809621917] [2024-11-16 08:09:37,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:37,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:37,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:37,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:37,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:37,241 INFO L87 Difference]: Start difference. First operand 7489 states and 11244 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:41,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:41,394 INFO L93 Difference]: Finished difference Result 26437 states and 40527 transitions. [2024-11-16 08:09:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:41,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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 193 [2024-11-16 08:09:41,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:41,485 INFO L225 Difference]: With dead ends: 26437 [2024-11-16 08:09:41,485 INFO L226 Difference]: Without dead ends: 18969 [2024-11-16 08:09:41,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:41,569 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1782 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3782 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 3848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:41,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 3271 Invalid, 3848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3782 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 08:09:41,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18969 states. [2024-11-16 08:09:42,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18969 to 14514. [2024-11-16 08:09:42,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14514 states, 13552 states have (on average 1.484577922077922) internal successors, (20119), 13585 states have internal predecessors, (20119), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2024-11-16 08:09:42,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14514 states to 14514 states and 21856 transitions. [2024-11-16 08:09:42,399 INFO L78 Accepts]: Start accepts. Automaton has 14514 states and 21856 transitions. Word has length 193 [2024-11-16 08:09:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:42,399 INFO L471 AbstractCegarLoop]: Abstraction has 14514 states and 21856 transitions. [2024-11-16 08:09:42,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:42,401 INFO L276 IsEmpty]: Start isEmpty. Operand 14514 states and 21856 transitions. [2024-11-16 08:09:42,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:09:42,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:42,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:42,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:09:42,412 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:42,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:42,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1197758906, now seen corresponding path program 1 times [2024-11-16 08:09:42,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:42,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150949447] [2024-11-16 08:09:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:42,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:42,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:42,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:09:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:42,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:09:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:42,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:09:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:42,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 08:09:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:42,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:42,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150949447] [2024-11-16 08:09:42,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150949447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:42,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:42,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:42,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655441937] [2024-11-16 08:09:42,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:42,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:42,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:42,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:42,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:42,715 INFO L87 Difference]: Start difference. First operand 14514 states and 21856 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:47,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:47,535 INFO L93 Difference]: Finished difference Result 51620 states and 79333 transitions. [2024-11-16 08:09:47,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:47,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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 193 [2024-11-16 08:09:47,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:47,701 INFO L225 Difference]: With dead ends: 51620 [2024-11-16 08:09:47,702 INFO L226 Difference]: Without dead ends: 37127 [2024-11-16 08:09:47,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:47,769 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1781 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:47,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 3271 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 08:09:47,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37127 states. [2024-11-16 08:09:49,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37127 to 28595. [2024-11-16 08:09:49,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28595 states, 26705 states have (on average 1.4838045309867065) internal successors, (39625), 26770 states have internal predecessors, (39625), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2024-11-16 08:09:49,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28595 states to 28595 states and 43288 transitions. [2024-11-16 08:09:49,242 INFO L78 Accepts]: Start accepts. Automaton has 28595 states and 43288 transitions. Word has length 193 [2024-11-16 08:09:49,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:49,243 INFO L471 AbstractCegarLoop]: Abstraction has 28595 states and 43288 transitions. [2024-11-16 08:09:49,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:49,244 INFO L276 IsEmpty]: Start isEmpty. Operand 28595 states and 43288 transitions. [2024-11-16 08:09:49,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:09:49,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:49,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:49,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:09:49,268 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:49,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:49,269 INFO L85 PathProgramCache]: Analyzing trace with hash -948480505, now seen corresponding path program 1 times [2024-11-16 08:09:49,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:49,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532707511] [2024-11-16 08:09:49,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:49,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:09:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:09:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:09:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 08:09:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:49,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:49,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532707511] [2024-11-16 08:09:49,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532707511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:49,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:49,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:49,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791447038] [2024-11-16 08:09:49,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:49,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:49,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:49,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:49,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:49,548 INFO L87 Difference]: Start difference. First operand 28595 states and 43288 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:55,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:55,877 INFO L93 Difference]: Finished difference Result 101987 states and 157547 transitions. [2024-11-16 08:09:55,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:09:55,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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 193 [2024-11-16 08:09:55,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:56,160 INFO L225 Difference]: With dead ends: 101987 [2024-11-16 08:09:56,161 INFO L226 Difference]: Without dead ends: 73413 [2024-11-16 08:09:56,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:09:56,266 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1786 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3751 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 3817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:56,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 3271 Invalid, 3817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3751 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 08:09:56,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73413 states. [2024-11-16 08:09:58,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73413 to 56820. [2024-11-16 08:09:59,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56820 states, 53074 states have (on average 1.4834193767192976) internal successors, (78731), 53203 states have internal predecessors, (78731), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2024-11-16 08:09:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56820 states to 56820 states and 86732 transitions. [2024-11-16 08:09:59,316 INFO L78 Accepts]: Start accepts. Automaton has 56820 states and 86732 transitions. Word has length 193 [2024-11-16 08:09:59,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:09:59,316 INFO L471 AbstractCegarLoop]: Abstraction has 56820 states and 86732 transitions. [2024-11-16 08:09:59,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:09:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 56820 states and 86732 transitions. [2024-11-16 08:09:59,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:09:59,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:09:59,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:09:59,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:09:59,366 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:09:59,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:09:59,367 INFO L85 PathProgramCache]: Analyzing trace with hash -663344602, now seen corresponding path program 1 times [2024-11-16 08:09:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:09:59,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178914110] [2024-11-16 08:09:59,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:09:59,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:09:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:09:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:09:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:09:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:09:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 08:09:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:09:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:09:59,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:09:59,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178914110] [2024-11-16 08:09:59,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178914110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:09:59,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:09:59,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:09:59,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655328519] [2024-11-16 08:09:59,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:09:59,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:09:59,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:09:59,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:09:59,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:09:59,923 INFO L87 Difference]: Start difference. First operand 56820 states and 86732 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:10:04,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:04,510 INFO L93 Difference]: Finished difference Result 131244 states and 205059 transitions. [2024-11-16 08:10:04,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:10:04,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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 193 [2024-11-16 08:10:04,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:04,982 INFO L225 Difference]: With dead ends: 131244 [2024-11-16 08:10:04,983 INFO L226 Difference]: Without dead ends: 74445 [2024-11-16 08:10:05,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:10:05,130 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 1290 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:05,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 1627 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1914 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 08:10:05,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74445 states. [2024-11-16 08:10:07,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74445 to 56820. [2024-11-16 08:10:07,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56820 states, 53074 states have (on average 1.4809888080792855) internal successors, (78602), 53203 states have internal predecessors, (78602), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2024-11-16 08:10:08,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56820 states to 56820 states and 86603 transitions. [2024-11-16 08:10:08,087 INFO L78 Accepts]: Start accepts. Automaton has 56820 states and 86603 transitions. Word has length 193 [2024-11-16 08:10:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:10:08,088 INFO L471 AbstractCegarLoop]: Abstraction has 56820 states and 86603 transitions. [2024-11-16 08:10:08,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:10:08,088 INFO L276 IsEmpty]: Start isEmpty. Operand 56820 states and 86603 transitions. [2024-11-16 08:10:08,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 08:10:08,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:10:08,131 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:10:08,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:10:08,131 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:10:08,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:10:08,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1056343547, now seen corresponding path program 1 times [2024-11-16 08:10:08,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:10:08,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108843851] [2024-11-16 08:10:08,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:10:08,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:10:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:08,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:10:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:08,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 08:10:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:08,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:10:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:08,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:10:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:08,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-16 08:10:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:10:08,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:10:08,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:10:08,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108843851] [2024-11-16 08:10:08,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108843851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:10:08,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:10:08,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:10:08,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331791482] [2024-11-16 08:10:08,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:10:08,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:10:08,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:10:08,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:10:08,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:10:08,736 INFO L87 Difference]: Start difference. First operand 56820 states and 86603 transitions. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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) [2024-11-16 08:10:17,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:10:17,519 INFO L93 Difference]: Finished difference Result 202462 states and 314661 transitions. [2024-11-16 08:10:17,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:10:17,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 5 states have internal predecessors, (183), 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 193 [2024-11-16 08:10:17,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:10:17,987 INFO L225 Difference]: With dead ends: 202462 [2024-11-16 08:10:17,987 INFO L226 Difference]: Without dead ends: 145663 [2024-11-16 08:10:18,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:10:18,318 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 1774 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 3699 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 3765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:10:18,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1794 Valid, 3271 Invalid, 3765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3699 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 08:10:18,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145663 states.