./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.07.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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.07.cil-1.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 a6baa92d18991a792383fc99c5c300f37f700ba00714b15a3dbe7d2191a67ca9 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:08:35,882 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:08:35,945 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:08:35,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:08:35,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:08:35,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:08:35,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:08:35,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:08:35,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:08:35,974 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:08:35,974 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:08:35,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:08:35,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:08:35,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:08:35,979 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:08:35,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:08:35,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:08:35,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:08:35,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:08:35,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:08:35,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:08:35,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:08:35,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:08:35,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:08:35,988 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:08:35,988 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:08:35,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:08:35,989 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:08:35,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:08:35,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:08:35,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:08:35,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:08:35,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:08:35,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:08:35,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:08:35,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:08:35,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:08:35,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:08:35,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:08:35,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:08:35,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:08:35,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:08:35,994 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6baa92d18991a792383fc99c5c300f37f700ba00714b15a3dbe7d2191a67ca9 [2024-11-11 21:08:36,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:08:36,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:08:36,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:08:36,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:08:36,272 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:08:36,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.07.cil-1.c [2024-11-11 21:08:37,783 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:08:38,013 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:08:38,014 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.07.cil-1.c [2024-11-11 21:08:38,029 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c079ed318/a599f199f2c44c8db09775e8f9e9b2b2/FLAG808e471f2 [2024-11-11 21:08:38,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c079ed318/a599f199f2c44c8db09775e8f9e9b2b2 [2024-11-11 21:08:38,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:08:38,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:08:38,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:08:38,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:08:38,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:08:38,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5cde09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38, skipping insertion in model container [2024-11-11 21:08:38,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:08:38,288 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.07.cil-1.c[671,684] [2024-11-11 21:08:38,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:08:38,413 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:08:38,423 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.07.cil-1.c[671,684] [2024-11-11 21:08:38,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:08:38,498 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:08:38,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38 WrapperNode [2024-11-11 21:08:38,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:08:38,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:08:38,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:08:38,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:08:38,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,615 INFO L138 Inliner]: procedures = 42, calls = 52, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 579 [2024-11-11 21:08:38,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:08:38,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:08:38,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:08:38,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:08:38,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,633 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,651 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]. [2024-11-11 21:08:38,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:08:38,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:08:38,689 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:08:38,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:08:38,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (1/1) ... [2024-11-11 21:08:38,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:08:38,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:08:38,727 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) [2024-11-11 21:08:38,732 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 [2024-11-11 21:08:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:08:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 21:08:38,785 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 21:08:38,785 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 21:08:38,785 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 21:08:38,785 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 21:08:38,785 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 21:08:38,786 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 21:08:38,787 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 21:08:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 21:08:38,788 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 21:08:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:08:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 21:08:38,788 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 21:08:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:08:38,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:08:38,916 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:08:38,919 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:08:39,597 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-11 21:08:39,597 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:08:39,625 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:08:39,625 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-11 21:08:39,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:08:39 BoogieIcfgContainer [2024-11-11 21:08:39,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:08:39,628 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:08:39,629 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:08:39,632 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:08:39,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:08:38" (1/3) ... [2024-11-11 21:08:39,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f4ddb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:08:39, skipping insertion in model container [2024-11-11 21:08:39,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:38" (2/3) ... [2024-11-11 21:08:39,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f4ddb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:08:39, skipping insertion in model container [2024-11-11 21:08:39,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:08:39" (3/3) ... [2024-11-11 21:08:39,637 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.07.cil-1.c [2024-11-11 21:08:39,653 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:08:39,653 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:08:39,718 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:08:39,724 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;@21de4d14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:08:39,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:08:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 236 states have (on average 1.61864406779661) internal successors, (382), 238 states have internal predecessors, (382), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-11 21:08:39,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:08:39,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:39,745 INFO L218 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] [2024-11-11 21:08:39,746 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:39,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:39,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2059468019, now seen corresponding path program 1 times [2024-11-11 21:08:39,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:39,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860817452] [2024-11-11 21:08:39,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:39,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:40,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:40,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:08:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:40,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:08:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:40,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:40,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:08:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:40,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:40,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860817452] [2024-11-11 21:08:40,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860817452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:40,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:40,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:08:40,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37792001] [2024-11-11 21:08:40,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:40,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:08:40,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:40,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:08:40,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:08:40,427 INFO L87 Difference]: Start difference. First operand has 265 states, 236 states have (on average 1.61864406779661) internal successors, (382), 238 states have internal predecessors, (382), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:41,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:41,892 INFO L93 Difference]: Finished difference Result 608 states and 985 transitions. [2024-11-11 21:08:41,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:08:41,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 122 [2024-11-11 21:08:41,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:41,908 INFO L225 Difference]: With dead ends: 608 [2024-11-11 21:08:41,909 INFO L226 Difference]: Without dead ends: 347 [2024-11-11 21:08:41,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:08:41,921 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 669 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:41,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 528 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 21:08:41,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-11 21:08:41,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 260. [2024-11-11 21:08:41,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 232 states have (on average 1.5301724137931034) internal successors, (355), 233 states have internal predecessors, (355), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-11 21:08:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 397 transitions. [2024-11-11 21:08:41,995 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 397 transitions. Word has length 122 [2024-11-11 21:08:41,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:41,996 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 397 transitions. [2024-11-11 21:08:41,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 397 transitions. [2024-11-11 21:08:42,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:08:42,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:42,002 INFO L218 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] [2024-11-11 21:08:42,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:08:42,002 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:42,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:42,003 INFO L85 PathProgramCache]: Analyzing trace with hash 508354315, now seen corresponding path program 1 times [2024-11-11 21:08:42,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:42,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785423509] [2024-11-11 21:08:42,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:42,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:42,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:42,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:08:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:42,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:08:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:42,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:42,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:08:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:42,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:42,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785423509] [2024-11-11 21:08:42,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785423509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:42,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:42,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:08:42,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386981104] [2024-11-11 21:08:42,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:42,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:08:42,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:42,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:08:42,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:08:42,369 INFO L87 Difference]: Start difference. First operand 260 states and 397 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-11 21:08:44,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:44,273 INFO L93 Difference]: Finished difference Result 932 states and 1460 transitions. [2024-11-11 21:08:44,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 21:08:44,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 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 122 [2024-11-11 21:08:44,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:44,283 INFO L225 Difference]: With dead ends: 932 [2024-11-11 21:08:44,283 INFO L226 Difference]: Without dead ends: 687 [2024-11-11 21:08:44,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:08:44,289 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 1000 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:44,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 882 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-11 21:08:44,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-11 21:08:44,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 514. [2024-11-11 21:08:44,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 463 states have (on average 1.5421166306695464) internal successors, (714), 465 states have internal predecessors, (714), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2024-11-11 21:08:44,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 791 transitions. [2024-11-11 21:08:44,374 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 791 transitions. Word has length 122 [2024-11-11 21:08:44,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:44,374 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 791 transitions. [2024-11-11 21:08:44,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-11 21:08:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 791 transitions. [2024-11-11 21:08:44,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:08:44,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:44,379 INFO L218 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] [2024-11-11 21:08:44,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:08:44,380 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:44,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:44,381 INFO L85 PathProgramCache]: Analyzing trace with hash -217209713, now seen corresponding path program 1 times [2024-11-11 21:08:44,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:44,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415806851] [2024-11-11 21:08:44,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:44,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:08:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:08:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:08:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:44,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:44,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:44,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415806851] [2024-11-11 21:08:44,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415806851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:44,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:44,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:44,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48338499] [2024-11-11 21:08:44,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:44,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:44,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:44,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:44,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:44,663 INFO L87 Difference]: Start difference. First operand 514 states and 791 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:08:47,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:47,131 INFO L93 Difference]: Finished difference Result 1538 states and 2411 transitions. [2024-11-11 21:08:47,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:47,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-11 21:08:47,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:47,139 INFO L225 Difference]: With dead ends: 1538 [2024-11-11 21:08:47,140 INFO L226 Difference]: Without dead ends: 1039 [2024-11-11 21:08:47,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:47,143 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 1021 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:47,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 1691 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2267 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 21:08:47,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-11 21:08:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 752. [2024-11-11 21:08:47,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 678 states have (on average 1.5353982300884956) internal successors, (1041), 681 states have internal predecessors, (1041), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2024-11-11 21:08:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1152 transitions. [2024-11-11 21:08:47,212 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1152 transitions. Word has length 122 [2024-11-11 21:08:47,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:47,212 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1152 transitions. [2024-11-11 21:08:47,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:08:47,213 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1152 transitions. [2024-11-11 21:08:47,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:08:47,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:47,220 INFO L218 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] [2024-11-11 21:08:47,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:08:47,220 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:47,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:47,224 INFO L85 PathProgramCache]: Analyzing trace with hash 2044363537, now seen corresponding path program 1 times [2024-11-11 21:08:47,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:47,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001689506] [2024-11-11 21:08:47,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:47,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:08:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:08:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:08:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:47,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:47,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001689506] [2024-11-11 21:08:47,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001689506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:47,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:47,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:47,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885141835] [2024-11-11 21:08:47,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:47,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:47,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:47,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:47,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:47,492 INFO L87 Difference]: Start difference. First operand 752 states and 1152 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:08:49,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:49,701 INFO L93 Difference]: Finished difference Result 2429 states and 3796 transitions. [2024-11-11 21:08:49,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:49,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-11 21:08:49,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:49,712 INFO L225 Difference]: With dead ends: 2429 [2024-11-11 21:08:49,712 INFO L226 Difference]: Without dead ends: 1692 [2024-11-11 21:08:49,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:49,718 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 1016 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 2296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:49,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1689 Invalid, 2296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 21:08:49,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2024-11-11 21:08:49,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1231. [2024-11-11 21:08:49,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 1111 states have (on average 1.5301530153015301) internal successors, (1700), 1116 states have internal predecessors, (1700), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2024-11-11 21:08:49,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1883 transitions. [2024-11-11 21:08:49,806 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1883 transitions. Word has length 122 [2024-11-11 21:08:49,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:49,806 INFO L471 AbstractCegarLoop]: Abstraction has 1231 states and 1883 transitions. [2024-11-11 21:08:49,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:08:49,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1883 transitions. [2024-11-11 21:08:49,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:08:49,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:49,810 INFO L218 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] [2024-11-11 21:08:49,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:08:49,810 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:49,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:49,810 INFO L85 PathProgramCache]: Analyzing trace with hash 177654863, now seen corresponding path program 1 times [2024-11-11 21:08:49,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:49,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994203953] [2024-11-11 21:08:49,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:49,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:49,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:49,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:08:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:50,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:08:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:50,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:50,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:08:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:50,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:50,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994203953] [2024-11-11 21:08:50,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994203953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:50,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:50,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:50,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377810985] [2024-11-11 21:08:50,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:50,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:50,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:50,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:50,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:50,068 INFO L87 Difference]: Start difference. First operand 1231 states and 1883 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:08:52,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:52,395 INFO L93 Difference]: Finished difference Result 4154 states and 6467 transitions. [2024-11-11 21:08:52,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:52,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-11 21:08:52,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:52,412 INFO L225 Difference]: With dead ends: 4154 [2024-11-11 21:08:52,412 INFO L226 Difference]: Without dead ends: 2938 [2024-11-11 21:08:52,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:52,418 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 1015 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:52,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 1689 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 21:08:52,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2024-11-11 21:08:52,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2192. [2024-11-11 21:08:52,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2192 states, 1980 states have (on average 1.5262626262626262) internal successors, (3022), 1989 states have internal predecessors, (3022), 149 states have call successors, (149), 54 states have call predecessors, (149), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2024-11-11 21:08:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 3355 transitions. [2024-11-11 21:08:52,592 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 3355 transitions. Word has length 122 [2024-11-11 21:08:52,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:52,592 INFO L471 AbstractCegarLoop]: Abstraction has 2192 states and 3355 transitions. [2024-11-11 21:08:52,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:08:52,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 3355 transitions. [2024-11-11 21:08:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:08:52,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:52,595 INFO L218 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] [2024-11-11 21:08:52,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:08:52,596 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:52,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:52,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1129487535, now seen corresponding path program 1 times [2024-11-11 21:08:52,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:52,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826901380] [2024-11-11 21:08:52,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:52,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:08:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:08:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:08:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:52,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:52,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:52,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826901380] [2024-11-11 21:08:52,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826901380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:52,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:52,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:52,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52727522] [2024-11-11 21:08:52,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:52,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:52,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:52,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:52,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:52,819 INFO L87 Difference]: Start difference. First operand 2192 states and 3355 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:08:54,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:54,800 INFO L93 Difference]: Finished difference Result 7605 states and 11829 transitions. [2024-11-11 21:08:54,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:54,801 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-11 21:08:54,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:54,829 INFO L225 Difference]: With dead ends: 7605 [2024-11-11 21:08:54,829 INFO L226 Difference]: Without dead ends: 5428 [2024-11-11 21:08:54,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:54,839 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 1014 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 2270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:54,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1689 Invalid, 2270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 21:08:54,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5428 states. [2024-11-11 21:08:55,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5428 to 4121. [2024-11-11 21:08:55,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 3725 states have (on average 1.523758389261745) internal successors, (5676), 3742 states have internal predecessors, (5676), 277 states have call successors, (277), 102 states have call predecessors, (277), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2024-11-11 21:08:55,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 6327 transitions. [2024-11-11 21:08:55,222 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 6327 transitions. Word has length 122 [2024-11-11 21:08:55,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:55,223 INFO L471 AbstractCegarLoop]: Abstraction has 4121 states and 6327 transitions. [2024-11-11 21:08:55,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:08:55,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 6327 transitions. [2024-11-11 21:08:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:08:55,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:55,229 INFO L218 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] [2024-11-11 21:08:55,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:08:55,230 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:55,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:55,230 INFO L85 PathProgramCache]: Analyzing trace with hash 768009231, now seen corresponding path program 1 times [2024-11-11 21:08:55,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:55,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578927059] [2024-11-11 21:08:55,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:55,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:08:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:08:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:08:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:55,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:55,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578927059] [2024-11-11 21:08:55,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578927059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:55,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:55,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:55,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923505207] [2024-11-11 21:08:55,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:55,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:55,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:55,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:55,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:55,449 INFO L87 Difference]: Start difference. First operand 4121 states and 6327 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:08:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:57,493 INFO L93 Difference]: Finished difference Result 14508 states and 22615 transitions. [2024-11-11 21:08:57,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:57,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-11 21:08:57,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:57,550 INFO L225 Difference]: With dead ends: 14508 [2024-11-11 21:08:57,550 INFO L226 Difference]: Without dead ends: 10402 [2024-11-11 21:08:57,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:57,571 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1072 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:57,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 1068 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 21:08:57,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10402 states. [2024-11-11 21:08:58,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10402 to 7994. [2024-11-11 21:08:58,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7994 states, 7230 states have (on average 1.522268326417704) internal successors, (11006), 7263 states have internal predecessors, (11006), 533 states have call successors, (533), 198 states have call predecessors, (533), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2024-11-11 21:08:58,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7994 states to 7994 states and 12347 transitions. [2024-11-11 21:08:58,171 INFO L78 Accepts]: Start accepts. Automaton has 7994 states and 12347 transitions. Word has length 122 [2024-11-11 21:08:58,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:58,172 INFO L471 AbstractCegarLoop]: Abstraction has 7994 states and 12347 transitions. [2024-11-11 21:08:58,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:08:58,172 INFO L276 IsEmpty]: Start isEmpty. Operand 7994 states and 12347 transitions. [2024-11-11 21:08:58,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:08:58,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:58,180 INFO L218 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] [2024-11-11 21:08:58,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:08:58,180 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:58,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:58,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1799050129, now seen corresponding path program 1 times [2024-11-11 21:08:58,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:58,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122557715] [2024-11-11 21:08:58,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:58,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:08:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:08:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:08:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:58,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:58,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122557715] [2024-11-11 21:08:58,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122557715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:58,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:58,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:58,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11691549] [2024-11-11 21:08:58,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:58,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:58,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:58,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:58,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:58,432 INFO L87 Difference]: Start difference. First operand 7994 states and 12347 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:09:01,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:01,232 INFO L93 Difference]: Finished difference Result 28315 states and 44381 transitions. [2024-11-11 21:09:01,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:09:01,233 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-11 21:09:01,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:01,357 INFO L225 Difference]: With dead ends: 28315 [2024-11-11 21:09:01,357 INFO L226 Difference]: Without dead ends: 20336 [2024-11-11 21:09:01,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:09:01,398 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 1012 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 2244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:01,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1689 Invalid, 2244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 21:09:01,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20336 states. [2024-11-11 21:09:02,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20336 to 15771. [2024-11-11 21:09:02,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15771 states, 14271 states have (on average 1.5214070492607386) internal successors, (21712), 14336 states have internal predecessors, (21712), 1045 states have call successors, (1045), 390 states have call predecessors, (1045), 454 states have return successors, (1838), 1108 states have call predecessors, (1838), 1045 states have call successors, (1838) [2024-11-11 21:09:02,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15771 states to 15771 states and 24595 transitions. [2024-11-11 21:09:02,689 INFO L78 Accepts]: Start accepts. Automaton has 15771 states and 24595 transitions. Word has length 122 [2024-11-11 21:09:02,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:02,690 INFO L471 AbstractCegarLoop]: Abstraction has 15771 states and 24595 transitions. [2024-11-11 21:09:02,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:09:02,691 INFO L276 IsEmpty]: Start isEmpty. Operand 15771 states and 24595 transitions. [2024-11-11 21:09:02,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:09:02,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:02,703 INFO L218 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] [2024-11-11 21:09:02,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:09:02,704 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:02,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:02,704 INFO L85 PathProgramCache]: Analyzing trace with hash -107353137, now seen corresponding path program 1 times [2024-11-11 21:09:02,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:02,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538823182] [2024-11-11 21:09:02,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:02,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:02,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:02,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:09:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:02,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:09:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:02,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:09:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:02,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:09:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:02,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:02,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:02,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538823182] [2024-11-11 21:09:02,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538823182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:02,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:02,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:02,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165591599] [2024-11-11 21:09:02,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:02,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:02,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:02,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:02,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:02,908 INFO L87 Difference]: Start difference. First operand 15771 states and 24595 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:09:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:06,875 INFO L93 Difference]: Finished difference Result 62778 states and 98885 transitions. [2024-11-11 21:09:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:09:06,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-11 21:09:06,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:07,109 INFO L225 Difference]: With dead ends: 62778 [2024-11-11 21:09:07,109 INFO L226 Difference]: Without dead ends: 47022 [2024-11-11 21:09:07,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:09:07,282 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 1308 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:07,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 1679 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 21:09:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47022 states. [2024-11-11 21:09:09,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47022 to 31196. [2024-11-11 21:09:09,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31196 states, 28288 states have (on average 1.5232607466063348) internal successors, (43090), 28417 states have internal predecessors, (43090), 2005 states have call successors, (2005), 774 states have call predecessors, (2005), 902 states have return successors, (4320), 2132 states have call predecessors, (4320), 2005 states have call successors, (4320) [2024-11-11 21:09:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31196 states to 31196 states and 49415 transitions. [2024-11-11 21:09:09,717 INFO L78 Accepts]: Start accepts. Automaton has 31196 states and 49415 transitions. Word has length 122 [2024-11-11 21:09:09,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:09,718 INFO L471 AbstractCegarLoop]: Abstraction has 31196 states and 49415 transitions. [2024-11-11 21:09:09,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:09:09,718 INFO L276 IsEmpty]: Start isEmpty. Operand 31196 states and 49415 transitions. [2024-11-11 21:09:09,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:09:09,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:09,744 INFO L218 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] [2024-11-11 21:09:09,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:09:09,744 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:09,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:09,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1493717969, now seen corresponding path program 1 times [2024-11-11 21:09:09,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:09,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420841278] [2024-11-11 21:09:09,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:09,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:09:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:09:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:09:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:09:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:09,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:09,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420841278] [2024-11-11 21:09:09,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420841278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:09,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:09,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:09,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257948573] [2024-11-11 21:09:09,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:09,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:09,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:09,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:09,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:09,952 INFO L87 Difference]: Start difference. First operand 31196 states and 49415 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:09:16,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:16,442 INFO L93 Difference]: Finished difference Result 120951 states and 193479 transitions. [2024-11-11 21:09:16,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:09:16,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-11 21:09:16,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:17,042 INFO L225 Difference]: With dead ends: 120951 [2024-11-11 21:09:17,042 INFO L226 Difference]: Without dead ends: 89770 [2024-11-11 21:09:17,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:09:17,162 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 1225 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:17,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 1679 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 21:09:17,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89770 states. [2024-11-11 21:09:21,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89770 to 62110. [2024-11-11 21:09:21,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62110 states, 56450 states have (on average 1.526412754650133) internal successors, (86166), 56707 states have internal predecessors, (86166), 3861 states have call successors, (3861), 1542 states have call predecessors, (3861), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2024-11-11 21:09:21,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62110 states to 62110 states and 100705 transitions. [2024-11-11 21:09:21,565 INFO L78 Accepts]: Start accepts. Automaton has 62110 states and 100705 transitions. Word has length 122 [2024-11-11 21:09:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:21,565 INFO L471 AbstractCegarLoop]: Abstraction has 62110 states and 100705 transitions. [2024-11-11 21:09:21,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:09:21,566 INFO L276 IsEmpty]: Start isEmpty. Operand 62110 states and 100705 transitions. [2024-11-11 21:09:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:09:22,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:22,013 INFO L218 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] [2024-11-11 21:09:22,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:09:22,013 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:22,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:22,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1449864109, now seen corresponding path program 1 times [2024-11-11 21:09:22,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:22,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575010509] [2024-11-11 21:09:22,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:22,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:22,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:22,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:09:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:22,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:09:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:22,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:09:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:22,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:09:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:22,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:22,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575010509] [2024-11-11 21:09:22,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575010509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:22,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:22,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:22,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103371857] [2024-11-11 21:09:22,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:22,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:22,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:22,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:22,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:22,250 INFO L87 Difference]: Start difference. First operand 62110 states and 100705 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:09:27,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:09:27,859 INFO L93 Difference]: Finished difference Result 141598 states and 235538 transitions. [2024-11-11 21:09:27,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:09:27,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2024-11-11 21:09:27,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:09:28,284 INFO L225 Difference]: With dead ends: 141598 [2024-11-11 21:09:28,284 INFO L226 Difference]: Without dead ends: 79503 [2024-11-11 21:09:28,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:09:28,502 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 742 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:09:28,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 847 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 21:09:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79503 states. [2024-11-11 21:09:32,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79503 to 62110. [2024-11-11 21:09:32,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62110 states, 56450 states have (on average 1.5218600531443756) internal successors, (85909), 56707 states have internal predecessors, (85909), 3861 states have call successors, (3861), 1542 states have call predecessors, (3861), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2024-11-11 21:09:32,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62110 states to 62110 states and 100448 transitions. [2024-11-11 21:09:32,807 INFO L78 Accepts]: Start accepts. Automaton has 62110 states and 100448 transitions. Word has length 122 [2024-11-11 21:09:32,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:32,807 INFO L471 AbstractCegarLoop]: Abstraction has 62110 states and 100448 transitions. [2024-11-11 21:09:32,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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) [2024-11-11 21:09:32,808 INFO L276 IsEmpty]: Start isEmpty. Operand 62110 states and 100448 transitions. [2024-11-11 21:09:32,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 21:09:32,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:32,860 INFO L218 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] [2024-11-11 21:09:32,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 21:09:32,860 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:32,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:32,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1226128273, now seen corresponding path program 1 times [2024-11-11 21:09:32,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:32,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244040902] [2024-11-11 21:09:32,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:32,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:32,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:32,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 21:09:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:33,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 21:09:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:33,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:09:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:33,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 21:09:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:33,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:33,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244040902] [2024-11-11 21:09:33,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244040902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:33,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:33,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:33,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136393045] [2024-11-11 21:09:33,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:33,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:33,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:33,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:33,068 INFO L87 Difference]: Start difference. First operand 62110 states and 100448 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 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)