./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 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/token_ring.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-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:08:11,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:08:11,963 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:08:11,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:08:11,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:08:11,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:08:11,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:08:11,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:08:12,000 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:08:12,001 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:08:12,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:08:12,001 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:08:12,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:08:12,005 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:08:12,005 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:08:12,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:08:12,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:08:12,006 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:08:12,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:08:12,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:08:12,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:08:12,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:08:12,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:08:12,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:08:12,012 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:08:12,012 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:08:12,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:08:12,013 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:08:12,013 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:08:12,024 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:08:12,025 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:08:12,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:08:12,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:08:12,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:08:12,026 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:08:12,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:08:12,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:08:12,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:08:12,027 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:08:12,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:08:12,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:08:12,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:08:12,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6baa92d18991a792383fc99c5c300f37f700ba00714b15a3dbe7d2191a67ca9 [2024-11-16 08:08:12,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:08:12,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:08:12,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:08:12,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:08:12,336 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:08:12,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.07.cil-1.c [2024-11-16 08:08:13,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:08:14,063 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:08:14,064 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.07.cil-1.c [2024-11-16 08:08:14,076 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f938222e1/80a6d3be9da04677b2769bcc3222334e/FLAG7bf1fd227 [2024-11-16 08:08:14,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f938222e1/80a6d3be9da04677b2769bcc3222334e [2024-11-16 08:08:14,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:08:14,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:08:14,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:08:14,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:08:14,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:08:14,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:14,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a378cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14, skipping insertion in model container [2024-11-16 08:08:14,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:14,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:08:14,664 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] [2024-11-16 08:08:14,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:08:14,819 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:08:14,832 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] [2024-11-16 08:08:14,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:08:14,903 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:08:14,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14 WrapperNode [2024-11-16 08:08:14,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:08:14,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:08:14,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:08:14,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:08:14,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:14,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:14,961 INFO L138 Inliner]: procedures = 42, calls = 52, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 569 [2024-11-16 08:08:14,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:08:14,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:08:14,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:08:14,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:08:14,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:14,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:14,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:15,007 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:08:15,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:15,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:15,021 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:15,022 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:15,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:15,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:15,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:08:15,033 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:08:15,033 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:08:15,033 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:08:15,034 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (1/1) ... [2024-11-16 08:08:15,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:08:15,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:08:15,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:08:15,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:08:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:08:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 08:08:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 08:08:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 08:08:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 08:08:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 08:08:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 08:08:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 08:08:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 08:08:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 08:08:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 08:08:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:08:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 08:08:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 08:08:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:08:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:08:15,220 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:08:15,222 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:08:15,806 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-16 08:08:15,807 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:08:15,835 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:08:15,836 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:08:15,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:08:15 BoogieIcfgContainer [2024-11-16 08:08:15,837 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:08:15,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:08:15,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:08:15,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:08:15,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:08:14" (1/3) ... [2024-11-16 08:08:15,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535b9e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:08:15, skipping insertion in model container [2024-11-16 08:08:15,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:08:14" (2/3) ... [2024-11-16 08:08:15,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535b9e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:08:15, skipping insertion in model container [2024-11-16 08:08:15,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:08:15" (3/3) ... [2024-11-16 08:08:15,844 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.07.cil-1.c [2024-11-16 08:08:15,856 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:08:15,856 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:08:15,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:08:15,931 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;@36fb5729, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:08:15,931 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:08:15,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 305 states, 276 states have (on average 1.5289855072463767) internal successors, (422), 278 states have internal predecessors, (422), 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) [2024-11-16 08:08:15,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:08:15,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:15,948 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:15,949 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:15,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:15,953 INFO L85 PathProgramCache]: Analyzing trace with hash -175791515, now seen corresponding path program 1 times [2024-11-16 08:08:15,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:15,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18486510] [2024-11-16 08:08:15,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:15,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:16,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:16,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:08:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:16,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:08:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:16,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:08:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:16,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 08:08:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:16,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:16,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18486510] [2024-11-16 08:08:16,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18486510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:16,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:16,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:08:16,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740433219] [2024-11-16 08:08:16,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:16,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:08:16,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:16,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:08:16,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:08:16,758 INFO L87 Difference]: Start difference. First operand has 305 states, 276 states have (on average 1.5289855072463767) internal successors, (422), 278 states have internal predecessors, (422), 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 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:18,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:18,924 INFO L93 Difference]: Finished difference Result 1047 states and 1639 transitions. [2024-11-16 08:08:18,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:08:18,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 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 127 [2024-11-16 08:08:18,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:18,946 INFO L225 Difference]: With dead ends: 1047 [2024-11-16 08:08:18,946 INFO L226 Difference]: Without dead ends: 747 [2024-11-16 08:08:18,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:08:18,959 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 1030 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:18,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 1080 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 08:08:18,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-16 08:08:19,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 573. [2024-11-16 08:08:19,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 522 states have (on average 1.4827586206896552) internal successors, (774), 524 states have internal predecessors, (774), 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) [2024-11-16 08:08:19,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 851 transitions. [2024-11-16 08:08:19,081 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 851 transitions. Word has length 127 [2024-11-16 08:08:19,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:19,083 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 851 transitions. [2024-11-16 08:08:19,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:19,083 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 851 transitions. [2024-11-16 08:08:19,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:08:19,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:19,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:19,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:08:19,089 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:19,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:19,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1927370525, now seen corresponding path program 1 times [2024-11-16 08:08:19,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:19,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577904140] [2024-11-16 08:08:19,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:19,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:19,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:19,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:08:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:19,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:08:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:19,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:08:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:19,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 08:08:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:19,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:19,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:19,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577904140] [2024-11-16 08:08:19,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577904140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:19,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:19,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:19,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502952425] [2024-11-16 08:08:19,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:19,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:19,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:19,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:19,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:19,419 INFO L87 Difference]: Start difference. First operand 573 states and 851 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:21,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:21,963 INFO L93 Difference]: Finished difference Result 1684 states and 2554 transitions. [2024-11-16 08:08:21,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:21,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2024-11-16 08:08:21,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:21,974 INFO L225 Difference]: With dead ends: 1684 [2024-11-16 08:08:21,978 INFO L226 Difference]: Without dead ends: 1126 [2024-11-16 08:08:21,980 INFO L431 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 [2024-11-16 08:08:21,981 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 1038 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:21,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 2025 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 08:08:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-16 08:08:22,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 839. [2024-11-16 08:08:22,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 765 states have (on average 1.4745098039215687) internal successors, (1128), 768 states have internal predecessors, (1128), 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) [2024-11-16 08:08:22,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1239 transitions. [2024-11-16 08:08:22,054 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1239 transitions. Word has length 127 [2024-11-16 08:08:22,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:22,055 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1239 transitions. [2024-11-16 08:08:22,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1239 transitions. [2024-11-16 08:08:22,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:08:22,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:22,058 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:22,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:08:22,059 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:22,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:22,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1848304484, now seen corresponding path program 1 times [2024-11-16 08:08:22,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:22,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038985752] [2024-11-16 08:08:22,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:22,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:22,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:22,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:08:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:22,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:08:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:22,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:08:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:22,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 08:08:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:22,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:22,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:22,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038985752] [2024-11-16 08:08:22,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038985752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:22,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:22,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:22,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093307151] [2024-11-16 08:08:22,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:22,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:22,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:22,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:22,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:22,299 INFO L87 Difference]: Start difference. First operand 839 states and 1239 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:24,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:24,378 INFO L93 Difference]: Finished difference Result 2661 states and 4024 transitions. [2024-11-16 08:08:24,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:24,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2024-11-16 08:08:24,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:24,425 INFO L225 Difference]: With dead ends: 2661 [2024-11-16 08:08:24,425 INFO L226 Difference]: Without dead ends: 1837 [2024-11-16 08:08:24,427 INFO L431 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 [2024-11-16 08:08:24,428 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1036 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 2325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:24,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 2023 Invalid, 2325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 08:08:24,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2024-11-16 08:08:24,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1372. [2024-11-16 08:08:24,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1252 states have (on average 1.4672523961661341) internal successors, (1837), 1257 states have internal predecessors, (1837), 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) [2024-11-16 08:08:24,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 2020 transitions. [2024-11-16 08:08:24,519 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 2020 transitions. Word has length 127 [2024-11-16 08:08:24,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:24,519 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 2020 transitions. [2024-11-16 08:08:24,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:24,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 2020 transitions. [2024-11-16 08:08:24,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:08:24,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:24,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:24,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:08:24,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:24,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:24,524 INFO L85 PathProgramCache]: Analyzing trace with hash 861721795, now seen corresponding path program 1 times [2024-11-16 08:08:24,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:24,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284334364] [2024-11-16 08:08:24,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:24,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:24,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:24,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:08:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:24,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:08:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:24,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:08:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:24,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 08:08:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:24,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:24,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:24,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284334364] [2024-11-16 08:08:24,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284334364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:24,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:24,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:24,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653542949] [2024-11-16 08:08:24,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:24,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:24,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:24,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:24,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:24,736 INFO L87 Difference]: Start difference. First operand 1372 states and 2020 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:27,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:27,003 INFO L93 Difference]: Finished difference Result 4550 states and 6849 transitions. [2024-11-16 08:08:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:27,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2024-11-16 08:08:27,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:27,023 INFO L225 Difference]: With dead ends: 4550 [2024-11-16 08:08:27,023 INFO L226 Difference]: Without dead ends: 3193 [2024-11-16 08:08:27,027 INFO L431 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 [2024-11-16 08:08:27,031 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1032 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:27,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 2023 Invalid, 2316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 08:08:27,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2024-11-16 08:08:27,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 2439. [2024-11-16 08:08:27,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2227 states have (on average 1.461607543780871) internal successors, (3255), 2236 states have internal predecessors, (3255), 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) [2024-11-16 08:08:27,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3588 transitions. [2024-11-16 08:08:27,193 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3588 transitions. Word has length 127 [2024-11-16 08:08:27,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:27,193 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 3588 transitions. [2024-11-16 08:08:27,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:27,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3588 transitions. [2024-11-16 08:08:27,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:08:27,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:27,197 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:27,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:08:27,198 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:27,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:27,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1938275204, now seen corresponding path program 1 times [2024-11-16 08:08:27,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:27,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132908721] [2024-11-16 08:08:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:27,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:27,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:27,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:08:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:27,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:08:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:27,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:08:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:27,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 08:08:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:27,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:27,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132908721] [2024-11-16 08:08:27,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132908721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:27,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:27,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:27,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001898932] [2024-11-16 08:08:27,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:27,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:27,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:27,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:27,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:27,386 INFO L87 Difference]: Start difference. First operand 2439 states and 3588 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:29,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:29,381 INFO L93 Difference]: Finished difference Result 8327 states and 12515 transitions. [2024-11-16 08:08:29,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:29,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2024-11-16 08:08:29,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:29,412 INFO L225 Difference]: With dead ends: 8327 [2024-11-16 08:08:29,413 INFO L226 Difference]: Without dead ends: 5903 [2024-11-16 08:08:29,421 INFO L431 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 [2024-11-16 08:08:29,423 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1028 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 2307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:29,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 2023 Invalid, 2307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 08:08:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2024-11-16 08:08:29,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 4578. [2024-11-16 08:08:29,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4578 states, 4182 states have (on average 1.4579148732663798) internal successors, (6097), 4199 states have internal predecessors, (6097), 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) [2024-11-16 08:08:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4578 states to 4578 states and 6748 transitions. [2024-11-16 08:08:29,733 INFO L78 Accepts]: Start accepts. Automaton has 4578 states and 6748 transitions. Word has length 127 [2024-11-16 08:08:29,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:29,734 INFO L471 AbstractCegarLoop]: Abstraction has 4578 states and 6748 transitions. [2024-11-16 08:08:29,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 4578 states and 6748 transitions. [2024-11-16 08:08:29,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:08:29,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:29,739 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:29,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:08:29,739 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:29,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:29,740 INFO L85 PathProgramCache]: Analyzing trace with hash -520849245, now seen corresponding path program 1 times [2024-11-16 08:08:29,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:29,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574103888] [2024-11-16 08:08:29,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:29,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:08:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:08:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:08:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 08:08:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:29,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:29,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574103888] [2024-11-16 08:08:29,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574103888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:29,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:29,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:29,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528722225] [2024-11-16 08:08:29,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:29,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:29,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:29,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:29,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:29,941 INFO L87 Difference]: Start difference. First operand 4578 states and 6748 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:32,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:32,288 INFO L93 Difference]: Finished difference Result 15880 states and 23905 transitions. [2024-11-16 08:08:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:32,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2024-11-16 08:08:32,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:32,347 INFO L225 Difference]: With dead ends: 15880 [2024-11-16 08:08:32,349 INFO L226 Difference]: Without dead ends: 11317 [2024-11-16 08:08:32,366 INFO L431 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 [2024-11-16 08:08:32,369 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1024 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:32,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 2023 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 08:08:32,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11317 states. [2024-11-16 08:08:32,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 8869. [2024-11-16 08:08:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8869 states, 8105 states have (on average 1.4557680444170265) internal successors, (11799), 8138 states have internal predecessors, (11799), 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) [2024-11-16 08:08:32,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8869 states to 8869 states and 13140 transitions. [2024-11-16 08:08:32,938 INFO L78 Accepts]: Start accepts. Automaton has 8869 states and 13140 transitions. Word has length 127 [2024-11-16 08:08:32,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:32,939 INFO L471 AbstractCegarLoop]: Abstraction has 8869 states and 13140 transitions. [2024-11-16 08:08:32,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:32,940 INFO L276 IsEmpty]: Start isEmpty. Operand 8869 states and 13140 transitions. [2024-11-16 08:08:32,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:08:32,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:32,949 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:32,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:08:32,950 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:32,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:32,950 INFO L85 PathProgramCache]: Analyzing trace with hash -461628508, now seen corresponding path program 1 times [2024-11-16 08:08:32,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:32,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389268004] [2024-11-16 08:08:32,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:32,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:33,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:33,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:08:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:33,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:08:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:33,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:08:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:33,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 08:08:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:33,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:33,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:33,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389268004] [2024-11-16 08:08:33,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389268004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:33,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:33,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:33,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118781995] [2024-11-16 08:08:33,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:33,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:33,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:33,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:33,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:33,199 INFO L87 Difference]: Start difference. First operand 8869 states and 13140 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:35,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:35,921 INFO L93 Difference]: Finished difference Result 30985 states and 46875 transitions. [2024-11-16 08:08:35,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:35,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2024-11-16 08:08:35,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:36,028 INFO L225 Difference]: With dead ends: 30985 [2024-11-16 08:08:36,029 INFO L226 Difference]: Without dead ends: 22131 [2024-11-16 08:08:36,066 INFO L431 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 [2024-11-16 08:08:36,069 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1020 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:36,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 2023 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 08:08:36,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22131 states. [2024-11-16 08:08:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22131 to 17480. [2024-11-16 08:08:37,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17480 states, 15980 states have (on average 1.4546307884856071) internal successors, (23245), 16045 states have internal predecessors, (23245), 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) [2024-11-16 08:08:37,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17480 states to 17480 states and 26128 transitions. [2024-11-16 08:08:37,144 INFO L78 Accepts]: Start accepts. Automaton has 17480 states and 26128 transitions. Word has length 127 [2024-11-16 08:08:37,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:37,145 INFO L471 AbstractCegarLoop]: Abstraction has 17480 states and 26128 transitions. [2024-11-16 08:08:37,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:37,146 INFO L276 IsEmpty]: Start isEmpty. Operand 17480 states and 26128 transitions. [2024-11-16 08:08:37,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:08:37,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:37,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:37,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:08:37,163 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:37,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:37,164 INFO L85 PathProgramCache]: Analyzing trace with hash 233018499, now seen corresponding path program 1 times [2024-11-16 08:08:37,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:37,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271539638] [2024-11-16 08:08:37,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:37,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:37,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:37,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:08:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:37,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:08:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:37,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:08:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:37,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 08:08:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:37,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:37,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:37,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271539638] [2024-11-16 08:08:37,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271539638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:37,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:37,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:37,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114421261] [2024-11-16 08:08:37,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:37,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:37,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:37,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:37,357 INFO L87 Difference]: Start difference. First operand 17480 states and 26128 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:41,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:41,041 INFO L93 Difference]: Finished difference Result 61194 states and 93413 transitions. [2024-11-16 08:08:41,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:08:41,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2024-11-16 08:08:41,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:41,195 INFO L225 Difference]: With dead ends: 61194 [2024-11-16 08:08:41,196 INFO L226 Difference]: Without dead ends: 43729 [2024-11-16 08:08:41,254 INFO L431 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 [2024-11-16 08:08:41,255 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1016 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:41,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 2023 Invalid, 2280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 08:08:41,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43729 states. [2024-11-16 08:08:43,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43729 to 34763. [2024-11-16 08:08:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34763 states, 31791 states have (on average 1.45409078040955) internal successors, (46227), 31920 states have internal predecessors, (46227), 2069 states have call successors, (2069), 774 states have call predecessors, (2069), 902 states have return successors, (4384), 2196 states have call predecessors, (4384), 2069 states have call successors, (4384) [2024-11-16 08:08:43,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34763 states to 34763 states and 52680 transitions. [2024-11-16 08:08:43,220 INFO L78 Accepts]: Start accepts. Automaton has 34763 states and 52680 transitions. Word has length 127 [2024-11-16 08:08:43,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:43,221 INFO L471 AbstractCegarLoop]: Abstraction has 34763 states and 52680 transitions. [2024-11-16 08:08:43,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:43,222 INFO L276 IsEmpty]: Start isEmpty. Operand 34763 states and 52680 transitions. [2024-11-16 08:08:43,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:08:43,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:43,261 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:43,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:08:43,262 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:43,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:43,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1363805124, now seen corresponding path program 1 times [2024-11-16 08:08:43,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:43,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866326581] [2024-11-16 08:08:43,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:43,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:43,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:43,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:08:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:43,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:08:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:43,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:08:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:43,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 08:08:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:43,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:43,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:43,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866326581] [2024-11-16 08:08:43,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866326581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:43,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:43,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:43,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858527499] [2024-11-16 08:08:43,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:43,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:43,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:43,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:43,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:43,471 INFO L87 Difference]: Start difference. First operand 34763 states and 52680 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:49,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:49,302 INFO L93 Difference]: Finished difference Result 135307 states and 209073 transitions. [2024-11-16 08:08:49,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:08:49,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2024-11-16 08:08:49,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:49,758 INFO L225 Difference]: With dead ends: 135307 [2024-11-16 08:08:49,759 INFO L226 Difference]: Without dead ends: 100559 [2024-11-16 08:08:49,866 INFO L431 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 [2024-11-16 08:08:49,869 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 1303 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:49,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 2013 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 08:08:49,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100559 states. [2024-11-16 08:08:53,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100559 to 69070. [2024-11-16 08:08:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69070 states, 63282 states have (on average 1.4557220062577036) internal successors, (92121), 63539 states have internal predecessors, (92121), 3989 states have call successors, (3989), 1542 states have call predecessors, (3989), 1798 states have return successors, (10806), 4244 states have call predecessors, (10806), 3989 states have call successors, (10806) [2024-11-16 08:08:53,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69070 states to 69070 states and 106916 transitions. [2024-11-16 08:08:53,906 INFO L78 Accepts]: Start accepts. Automaton has 69070 states and 106916 transitions. Word has length 127 [2024-11-16 08:08:53,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:08:53,907 INFO L471 AbstractCegarLoop]: Abstraction has 69070 states and 106916 transitions. [2024-11-16 08:08:53,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:08:53,907 INFO L276 IsEmpty]: Start isEmpty. Operand 69070 states and 106916 transitions. [2024-11-16 08:08:54,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:08:54,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:08:54,236 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:08:54,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:08:54,237 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:08:54,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:08:54,237 INFO L85 PathProgramCache]: Analyzing trace with hash 430450787, now seen corresponding path program 1 times [2024-11-16 08:08:54,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:08:54,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759211899] [2024-11-16 08:08:54,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:54,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:08:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:54,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:54,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 08:08:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:54,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:08:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:54,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 08:08:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:54,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 08:08:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:54,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:08:54,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:54,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759211899] [2024-11-16 08:08:54,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759211899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:54,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:08:54,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:08:54,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600986229] [2024-11-16 08:08:54,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:54,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:08:54,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:54,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:08:54,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:08:54,440 INFO L87 Difference]: Start difference. First operand 69070 states and 106916 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:09:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:09:04,121 INFO L93 Difference]: Finished difference Result 265356 states and 418635 transitions. [2024-11-16 08:09:04,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:09:04,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2024-11-16 08:09:04,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:09:04,959 INFO L225 Difference]: With dead ends: 265356 [2024-11-16 08:09:04,960 INFO L226 Difference]: Without dead ends: 196301 [2024-11-16 08:09:05,120 INFO L431 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 [2024-11-16 08:09:05,120 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 1258 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 2201 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:09:05,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 2004 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2201 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 08:09:05,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196301 states.