./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label44+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label44+token_ring.05.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 806c9058928482f755246f30ce94bbbe3c870162d7ccdd45454f74a5441d158a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:11:50,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:11:50,336 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:11:50,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:11:50,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:11:50,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:11:50,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:11:50,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:11:50,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:11:50,364 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:11:50,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:11:50,365 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:11:50,365 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:11:50,367 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:11:50,367 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:11:50,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:11:50,368 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:11:50,368 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:11:50,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:11:50,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:11:50,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:11:50,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:11:50,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:11:50,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:11:50,371 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:11:50,371 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:11:50,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:11:50,372 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:11:50,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:11:50,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:11:50,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:11:50,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:11:50,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:11:50,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:11:50,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:11:50,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:11:50,375 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:11:50,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:11:50,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:11:50,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:11:50,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:11:50,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:11:50,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 806c9058928482f755246f30ce94bbbe3c870162d7ccdd45454f74a5441d158a [2024-11-11 22:11:50,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:11:50,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:11:50,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:11:50,706 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:11:50,706 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:11:50,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label44+token_ring.05.cil-1.c [2024-11-11 22:11:52,105 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:11:52,721 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:11:52,722 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label44+token_ring.05.cil-1.c [2024-11-11 22:11:52,777 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea86127a/f387db48469740aba7ff4317bae57c73/FLAGb72b119fe [2024-11-11 22:11:52,803 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea86127a/f387db48469740aba7ff4317bae57c73 [2024-11-11 22:11:52,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:11:52,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:11:52,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:11:52,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:11:52,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:11:52,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:11:52" (1/1) ... [2024-11-11 22:11:52,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667d5f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:52, skipping insertion in model container [2024-11-11 22:11:52,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:11:52" (1/1) ... [2024-11-11 22:11:52,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:11:54,791 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/combinations/Problem05_label44+token_ring.05.cil-1.c[377340,377353] [2024-11-11 22:11:54,818 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/combinations/Problem05_label44+token_ring.05.cil-1.c[383339,383352] [2024-11-11 22:11:54,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:11:54,976 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:11:55,783 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/combinations/Problem05_label44+token_ring.05.cil-1.c[377340,377353] [2024-11-11 22:11:55,791 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/combinations/Problem05_label44+token_ring.05.cil-1.c[383339,383352] [2024-11-11 22:11:55,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:11:55,863 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:11:55,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55 WrapperNode [2024-11-11 22:11:55,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:11:55,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:11:55,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:11:55,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:11:55,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:55,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,273 INFO L138 Inliner]: procedures = 54, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12813 [2024-11-11 22:11:56,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:11:56,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:11:56,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:11:56,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:11:56,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,332 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,419 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 22:11:56,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:11:56,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:11:56,982 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:11:56,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:11:56,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (1/1) ... [2024-11-11 22:11:56,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:11:57,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:11:57,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 22:11:57,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 22:11:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:11:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 22:11:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 22:11:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:11:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:11:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 22:11:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 22:11:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 22:11:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 22:11:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 22:11:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 22:11:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 22:11:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 22:11:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:11:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:11:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:11:57,313 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:11:57,316 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:12:05,053 INFO L? ?]: Removed 1713 outVars from TransFormulas that were not future-live. [2024-11-11 22:12:05,053 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:12:05,107 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:12:05,108 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-11 22:12:05,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:12:05 BoogieIcfgContainer [2024-11-11 22:12:05,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:12:05,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:12:05,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:12:05,115 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:12:05,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:11:52" (1/3) ... [2024-11-11 22:12:05,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5112af99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:12:05, skipping insertion in model container [2024-11-11 22:12:05,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:11:55" (2/3) ... [2024-11-11 22:12:05,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5112af99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:12:05, skipping insertion in model container [2024-11-11 22:12:05,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:12:05" (3/3) ... [2024-11-11 22:12:05,119 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.05.cil-1.c [2024-11-11 22:12:05,135 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:12:05,135 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:12:05,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:12:05,325 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;@6b960283, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:12:05,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:12:05,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-11 22:12:05,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:05,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:05,351 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:05,351 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:05,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:05,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1103952823, now seen corresponding path program 1 times [2024-11-11 22:12:05,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:05,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416829502] [2024-11-11 22:12:05,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:05,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:05,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:05,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:05,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:05,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:05,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:05,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:05,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416829502] [2024-11-11 22:12:05,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416829502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:05,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:05,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:12:05,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177807893] [2024-11-11 22:12:05,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:05,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:12:05,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:05,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:12:05,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:12:05,868 INFO L87 Difference]: Start difference. First operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:07,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:07,037 INFO L93 Difference]: Finished difference Result 4849 states and 8937 transitions. [2024-11-11 22:12:07,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:12:07,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2024-11-11 22:12:07,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:07,064 INFO L225 Difference]: With dead ends: 4849 [2024-11-11 22:12:07,065 INFO L226 Difference]: Without dead ends: 2394 [2024-11-11 22:12:07,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:12:07,078 INFO L435 NwaCegarLoop]: 4222 mSDtfsCounter, 517 mSDsluCounter, 12295 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 16517 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:07,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 16517 Invalid, 539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [42 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:12:07,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2024-11-11 22:12:07,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2329. [2024-11-11 22:12:07,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2302 states have (on average 1.8388357949609035) internal successors, (4233), 2304 states have internal predecessors, (4233), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-11 22:12:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4271 transitions. [2024-11-11 22:12:07,252 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4271 transitions. Word has length 101 [2024-11-11 22:12:07,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:07,253 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 4271 transitions. [2024-11-11 22:12:07,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4271 transitions. [2024-11-11 22:12:07,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:07,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:07,259 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:07,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:12:07,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:07,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:07,260 INFO L85 PathProgramCache]: Analyzing trace with hash -773110407, now seen corresponding path program 1 times [2024-11-11 22:12:07,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:07,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778598707] [2024-11-11 22:12:07,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:07,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:07,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:07,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:07,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:07,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:07,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:07,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:07,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:07,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778598707] [2024-11-11 22:12:07,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778598707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:07,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:07,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:12:07,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524872491] [2024-11-11 22:12:07,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:07,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:12:07,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:07,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:12:07,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:12:07,582 INFO L87 Difference]: Start difference. First operand 2329 states and 4271 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:09,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:09,076 INFO L93 Difference]: Finished difference Result 2853 states and 5090 transitions. [2024-11-11 22:12:09,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:12:09,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:09,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:09,089 INFO L225 Difference]: With dead ends: 2853 [2024-11-11 22:12:09,089 INFO L226 Difference]: Without dead ends: 2658 [2024-11-11 22:12:09,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:12:09,092 INFO L435 NwaCegarLoop]: 4137 mSDtfsCounter, 4719 mSDsluCounter, 12401 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 16538 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:09,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4731 Valid, 16538 Invalid, 1169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:12:09,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-11-11 22:12:09,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2529. [2024-11-11 22:12:09,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2481 states have (on average 1.8170092704554615) internal successors, (4508), 2484 states have internal predecessors, (4508), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-11 22:12:09,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 4577 transitions. [2024-11-11 22:12:09,160 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 4577 transitions. Word has length 101 [2024-11-11 22:12:09,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:09,161 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 4577 transitions. [2024-11-11 22:12:09,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:09,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 4577 transitions. [2024-11-11 22:12:09,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:09,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:09,164 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:09,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:12:09,164 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:09,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:09,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972285, now seen corresponding path program 1 times [2024-11-11 22:12:09,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:09,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107367368] [2024-11-11 22:12:09,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:09,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:09,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:09,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:09,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:09,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:09,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:09,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:09,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:09,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107367368] [2024-11-11 22:12:09,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107367368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:09,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:09,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:09,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501608547] [2024-11-11 22:12:09,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:09,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:09,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:09,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:09,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:09,403 INFO L87 Difference]: Start difference. First operand 2529 states and 4577 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:11,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:11,359 INFO L93 Difference]: Finished difference Result 3323 states and 5813 transitions. [2024-11-11 22:12:11,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:12:11,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:11,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:11,377 INFO L225 Difference]: With dead ends: 3323 [2024-11-11 22:12:11,377 INFO L226 Difference]: Without dead ends: 2928 [2024-11-11 22:12:11,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:12:11,383 INFO L435 NwaCegarLoop]: 4269 mSDtfsCounter, 4734 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4746 SdHoareTripleChecker+Valid, 21131 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:11,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4746 Valid, 21131 Invalid, 1789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:12:11,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2928 states. [2024-11-11 22:12:11,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2928 to 2716. [2024-11-11 22:12:11,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2647 states have (on average 1.797128825085002) internal successors, (4757), 2651 states have internal predecessors, (4757), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-11 22:12:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 4856 transitions. [2024-11-11 22:12:11,476 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 4856 transitions. Word has length 101 [2024-11-11 22:12:11,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:11,477 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 4856 transitions. [2024-11-11 22:12:11,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:11,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 4856 transitions. [2024-11-11 22:12:11,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:11,479 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:11,479 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:11,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:12:11,480 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:11,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:11,480 INFO L85 PathProgramCache]: Analyzing trace with hash -74158661, now seen corresponding path program 1 times [2024-11-11 22:12:11,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:11,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077457396] [2024-11-11 22:12:11,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:11,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:11,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:11,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:11,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:11,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:11,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:11,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:11,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077457396] [2024-11-11 22:12:11,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077457396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:11,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:11,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:11,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822219653] [2024-11-11 22:12:11,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:11,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:11,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:11,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:11,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:11,700 INFO L87 Difference]: Start difference. First operand 2716 states and 4856 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:13,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:13,529 INFO L93 Difference]: Finished difference Result 4014 states and 6872 transitions. [2024-11-11 22:12:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:12:13,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:13,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:13,550 INFO L225 Difference]: With dead ends: 4014 [2024-11-11 22:12:13,550 INFO L226 Difference]: Without dead ends: 3432 [2024-11-11 22:12:13,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:12:13,555 INFO L435 NwaCegarLoop]: 4267 mSDtfsCounter, 4728 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4740 SdHoareTripleChecker+Valid, 21129 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:13,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4740 Valid, 21129 Invalid, 1770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 22:12:13,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2024-11-11 22:12:13,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3094. [2024-11-11 22:12:13,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 2983 states have (on average 1.763995977204157) internal successors, (5262), 2989 states have internal predecessors, (5262), 75 states have call successors, (75), 30 states have call predecessors, (75), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-11 22:12:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 5425 transitions. [2024-11-11 22:12:13,679 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 5425 transitions. Word has length 101 [2024-11-11 22:12:13,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:13,680 INFO L471 AbstractCegarLoop]: Abstraction has 3094 states and 5425 transitions. [2024-11-11 22:12:13,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:13,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 5425 transitions. [2024-11-11 22:12:13,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:13,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:13,682 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:13,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:12:13,683 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:13,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:13,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1492599289, now seen corresponding path program 1 times [2024-11-11 22:12:13,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:13,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224152277] [2024-11-11 22:12:13,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:13,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:13,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:13,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:13,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:13,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:13,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:13,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:13,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:13,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224152277] [2024-11-11 22:12:13,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224152277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:13,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:13,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:13,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465204940] [2024-11-11 22:12:13,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:13,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:13,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:13,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:13,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:13,957 INFO L87 Difference]: Start difference. First operand 3094 states and 5425 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:15,750 INFO L93 Difference]: Finished difference Result 5354 states and 8917 transitions. [2024-11-11 22:12:15,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:12:15,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:15,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:15,771 INFO L225 Difference]: With dead ends: 5354 [2024-11-11 22:12:15,772 INFO L226 Difference]: Without dead ends: 4394 [2024-11-11 22:12:15,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:12:15,778 INFO L435 NwaCegarLoop]: 4267 mSDtfsCounter, 4727 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 21129 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:15,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4739 Valid, 21129 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 22:12:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2024-11-11 22:12:15,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3851. [2024-11-11 22:12:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 3656 states have (on average 1.7155361050328228) internal successors, (6272), 3666 states have internal predecessors, (6272), 131 states have call successors, (131), 54 states have call predecessors, (131), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-11 22:12:15,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 6569 transitions. [2024-11-11 22:12:15,942 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 6569 transitions. Word has length 101 [2024-11-11 22:12:15,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:15,943 INFO L471 AbstractCegarLoop]: Abstraction has 3851 states and 6569 transitions. [2024-11-11 22:12:15,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:15,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 6569 transitions. [2024-11-11 22:12:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:15,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:15,946 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:15,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:12:15,946 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:15,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:15,947 INFO L85 PathProgramCache]: Analyzing trace with hash 434761211, now seen corresponding path program 1 times [2024-11-11 22:12:15,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:15,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957479528] [2024-11-11 22:12:15,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:15,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:16,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:16,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:16,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:16,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:16,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:16,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:16,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:16,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957479528] [2024-11-11 22:12:16,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957479528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:16,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:16,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:16,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408900742] [2024-11-11 22:12:16,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:16,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:16,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:16,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:16,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:16,109 INFO L87 Difference]: Start difference. First operand 3851 states and 6569 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:17,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:17,921 INFO L93 Difference]: Finished difference Result 8033 states and 13023 transitions. [2024-11-11 22:12:17,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:12:17,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:17,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:17,953 INFO L225 Difference]: With dead ends: 8033 [2024-11-11 22:12:17,953 INFO L226 Difference]: Without dead ends: 6316 [2024-11-11 22:12:17,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:12:17,963 INFO L435 NwaCegarLoop]: 4267 mSDtfsCounter, 4726 mSDsluCounter, 16862 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4738 SdHoareTripleChecker+Valid, 21129 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:17,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4738 Valid, 21129 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:12:17,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6316 states. [2024-11-11 22:12:18,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6316 to 5372. [2024-11-11 22:12:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5372 states, 5009 states have (on average 1.657416650029946) internal successors, (8302), 5027 states have internal predecessors, (8302), 243 states have call successors, (243), 102 states have call predecessors, (243), 118 states have return successors, (340), 258 states have call predecessors, (340), 243 states have call successors, (340) [2024-11-11 22:12:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8885 transitions. [2024-11-11 22:12:18,247 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 8885 transitions. Word has length 101 [2024-11-11 22:12:18,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:18,248 INFO L471 AbstractCegarLoop]: Abstraction has 5372 states and 8885 transitions. [2024-11-11 22:12:18,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:18,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 8885 transitions. [2024-11-11 22:12:18,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:18,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:18,252 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:18,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:12:18,252 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:18,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:18,253 INFO L85 PathProgramCache]: Analyzing trace with hash -707741255, now seen corresponding path program 1 times [2024-11-11 22:12:18,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:18,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292630632] [2024-11-11 22:12:18,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:18,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:18,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:18,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:18,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:18,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:18,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:18,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:18,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292630632] [2024-11-11 22:12:18,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292630632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:18,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:18,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:18,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397107819] [2024-11-11 22:12:18,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:18,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:18,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:18,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:18,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:18,408 INFO L87 Difference]: Start difference. First operand 5372 states and 8885 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:20,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:20,286 INFO L93 Difference]: Finished difference Result 14656 states and 23187 transitions. [2024-11-11 22:12:20,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:12:20,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:20,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:20,340 INFO L225 Difference]: With dead ends: 14656 [2024-11-11 22:12:20,341 INFO L226 Difference]: Without dead ends: 11418 [2024-11-11 22:12:20,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:12:20,359 INFO L435 NwaCegarLoop]: 4149 mSDtfsCounter, 4988 mSDsluCounter, 16518 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 20667 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:20,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 20667 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:12:20,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2024-11-11 22:12:20,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 8381. [2024-11-11 22:12:20,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8381 states, 7698 states have (on average 1.6045726162639646) internal successors, (12352), 7732 states have internal predecessors, (12352), 451 states have call successors, (451), 198 states have call predecessors, (451), 230 states have return successors, (726), 482 states have call predecessors, (726), 451 states have call successors, (726) [2024-11-11 22:12:20,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8381 states to 8381 states and 13529 transitions. [2024-11-11 22:12:20,958 INFO L78 Accepts]: Start accepts. Automaton has 8381 states and 13529 transitions. Word has length 101 [2024-11-11 22:12:20,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:20,959 INFO L471 AbstractCegarLoop]: Abstraction has 8381 states and 13529 transitions. [2024-11-11 22:12:20,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:20,962 INFO L276 IsEmpty]: Start isEmpty. Operand 8381 states and 13529 transitions. [2024-11-11 22:12:20,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:20,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:20,970 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:20,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:12:20,970 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:20,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:20,971 INFO L85 PathProgramCache]: Analyzing trace with hash -467501509, now seen corresponding path program 1 times [2024-11-11 22:12:20,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:20,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330339024] [2024-11-11 22:12:20,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:20,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:21,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:21,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:21,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:21,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:21,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:21,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:21,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:21,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330339024] [2024-11-11 22:12:21,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330339024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:21,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:21,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:21,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706716286] [2024-11-11 22:12:21,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:21,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:21,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:21,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:21,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:21,165 INFO L87 Difference]: Start difference. First operand 8381 states and 13529 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:23,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:23,338 INFO L93 Difference]: Finished difference Result 26111 states and 41017 transitions. [2024-11-11 22:12:23,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:12:23,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:23,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:23,431 INFO L225 Difference]: With dead ends: 26111 [2024-11-11 22:12:23,431 INFO L226 Difference]: Without dead ends: 19864 [2024-11-11 22:12:23,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:12:23,473 INFO L435 NwaCegarLoop]: 4264 mSDtfsCounter, 4766 mSDsluCounter, 16851 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4777 SdHoareTripleChecker+Valid, 21115 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:23,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4777 Valid, 21115 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:12:23,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19864 states. [2024-11-11 22:12:24,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19864 to 14222. [2024-11-11 22:12:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14222 states, 12915 states have (on average 1.564847077042199) internal successors, (20210), 12981 states have internal predecessors, (20210), 851 states have call successors, (851), 390 states have call predecessors, (851), 454 states have return successors, (1644), 914 states have call predecessors, (1644), 851 states have call successors, (1644) [2024-11-11 22:12:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14222 states to 14222 states and 22705 transitions. [2024-11-11 22:12:24,316 INFO L78 Accepts]: Start accepts. Automaton has 14222 states and 22705 transitions. Word has length 101 [2024-11-11 22:12:24,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:24,317 INFO L471 AbstractCegarLoop]: Abstraction has 14222 states and 22705 transitions. [2024-11-11 22:12:24,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:24,317 INFO L276 IsEmpty]: Start isEmpty. Operand 14222 states and 22705 transitions. [2024-11-11 22:12:24,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:24,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:24,327 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:24,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:12:24,328 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:24,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:24,328 INFO L85 PathProgramCache]: Analyzing trace with hash 371532153, now seen corresponding path program 1 times [2024-11-11 22:12:24,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:24,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395319465] [2024-11-11 22:12:24,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:24,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:24,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:24,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:24,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:24,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:24,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:24,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:24,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395319465] [2024-11-11 22:12:24,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395319465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:24,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:24,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:24,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143085929] [2024-11-11 22:12:24,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:24,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:24,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:24,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:24,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:24,484 INFO L87 Difference]: Start difference. First operand 14222 states and 22705 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:27,184 INFO L93 Difference]: Finished difference Result 47950 states and 75583 transitions. [2024-11-11 22:12:27,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:12:27,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:27,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:27,532 INFO L225 Difference]: With dead ends: 47950 [2024-11-11 22:12:27,532 INFO L226 Difference]: Without dead ends: 35862 [2024-11-11 22:12:27,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:12:27,592 INFO L435 NwaCegarLoop]: 4265 mSDtfsCounter, 4858 mSDsluCounter, 16854 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4876 SdHoareTripleChecker+Valid, 21119 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:27,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4876 Valid, 21119 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:12:27,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35862 states. [2024-11-11 22:12:29,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35862 to 26031. [2024-11-11 22:12:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26031 states, 23508 states have (on average 1.5404117747149906) internal successors, (36212), 23638 states have internal predecessors, (36212), 1619 states have call successors, (1619), 774 states have call predecessors, (1619), 902 states have return successors, (3934), 1746 states have call predecessors, (3934), 1619 states have call successors, (3934) [2024-11-11 22:12:29,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26031 states to 26031 states and 41765 transitions. [2024-11-11 22:12:29,319 INFO L78 Accepts]: Start accepts. Automaton has 26031 states and 41765 transitions. Word has length 101 [2024-11-11 22:12:29,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:29,320 INFO L471 AbstractCegarLoop]: Abstraction has 26031 states and 41765 transitions. [2024-11-11 22:12:29,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:29,320 INFO L276 IsEmpty]: Start isEmpty. Operand 26031 states and 41765 transitions. [2024-11-11 22:12:29,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:29,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:29,342 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:29,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:12:29,343 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:29,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:29,343 INFO L85 PathProgramCache]: Analyzing trace with hash 398597755, now seen corresponding path program 1 times [2024-11-11 22:12:29,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:29,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041227010] [2024-11-11 22:12:29,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:29,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:29,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:29,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:29,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:29,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:29,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:29,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:29,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041227010] [2024-11-11 22:12:29,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041227010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:29,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:29,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:29,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987808283] [2024-11-11 22:12:29,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:29,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:29,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:29,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:29,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:29,499 INFO L87 Difference]: Start difference. First operand 26031 states and 41765 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:34,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:34,095 INFO L93 Difference]: Finished difference Result 90861 states and 145477 transitions. [2024-11-11 22:12:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:12:34,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:34,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:34,397 INFO L225 Difference]: With dead ends: 90861 [2024-11-11 22:12:34,397 INFO L226 Difference]: Without dead ends: 66964 [2024-11-11 22:12:34,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:12:34,481 INFO L435 NwaCegarLoop]: 4265 mSDtfsCounter, 4824 mSDsluCounter, 16854 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4842 SdHoareTripleChecker+Valid, 21119 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:34,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4842 Valid, 21119 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:12:34,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66964 states. [2024-11-11 22:12:37,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66964 to 49584. [2024-11-11 22:12:37,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49584 states, 44693 states have (on average 1.5277112746962611) internal successors, (68278), 44951 states have internal predecessors, (68278), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-11 22:12:37,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49584 states to 49584 states and 81277 transitions. [2024-11-11 22:12:37,630 INFO L78 Accepts]: Start accepts. Automaton has 49584 states and 81277 transitions. Word has length 101 [2024-11-11 22:12:37,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:37,631 INFO L471 AbstractCegarLoop]: Abstraction has 49584 states and 81277 transitions. [2024-11-11 22:12:37,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:37,631 INFO L276 IsEmpty]: Start isEmpty. Operand 49584 states and 81277 transitions. [2024-11-11 22:12:37,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:37,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:37,679 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:37,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:12:37,679 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:37,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:37,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1678739143, now seen corresponding path program 1 times [2024-11-11 22:12:37,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:37,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149622161] [2024-11-11 22:12:37,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:37,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:37,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:37,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:37,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:37,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:37,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:37,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:37,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149622161] [2024-11-11 22:12:37,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149622161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:37,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:37,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:12:37,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215819647] [2024-11-11 22:12:37,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:37,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:12:37,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:37,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:12:37,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:12:37,890 INFO L87 Difference]: Start difference. First operand 49584 states and 81277 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:41,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:41,840 INFO L93 Difference]: Finished difference Result 108888 states and 182936 transitions. [2024-11-11 22:12:41,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:12:41,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:41,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:42,324 INFO L225 Difference]: With dead ends: 108888 [2024-11-11 22:12:42,324 INFO L226 Difference]: Without dead ends: 61438 [2024-11-11 22:12:42,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:12:42,452 INFO L435 NwaCegarLoop]: 4122 mSDtfsCounter, 4533 mSDsluCounter, 16337 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4546 SdHoareTripleChecker+Valid, 20459 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:42,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4546 Valid, 20459 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:12:42,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61438 states. [2024-11-11 22:12:45,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61438 to 49584. [2024-11-11 22:12:45,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49584 states, 44693 states have (on average 1.5219609334795159) internal successors, (68021), 44951 states have internal predecessors, (68021), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-11 22:12:45,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49584 states to 49584 states and 81020 transitions. [2024-11-11 22:12:45,708 INFO L78 Accepts]: Start accepts. Automaton has 49584 states and 81020 transitions. Word has length 101 [2024-11-11 22:12:45,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:12:45,708 INFO L471 AbstractCegarLoop]: Abstraction has 49584 states and 81020 transitions. [2024-11-11 22:12:45,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:45,709 INFO L276 IsEmpty]: Start isEmpty. Operand 49584 states and 81020 transitions. [2024-11-11 22:12:45,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 22:12:45,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:12:45,748 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:12:45,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:12:45,748 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:12:45,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:12:45,749 INFO L85 PathProgramCache]: Analyzing trace with hash -791516297, now seen corresponding path program 1 times [2024-11-11 22:12:45,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:12:45,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38060585] [2024-11-11 22:12:45,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:12:45,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:12:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:45,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:12:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:45,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 22:12:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:45,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 22:12:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:45,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 22:12:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:45,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 22:12:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:12:45,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:12:45,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:12:45,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38060585] [2024-11-11 22:12:45,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38060585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:12:45,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:12:45,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:12:45,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385487630] [2024-11-11 22:12:45,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:12:45,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:12:45,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:12:45,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:12:45,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:12:45,862 INFO L87 Difference]: Start difference. First operand 49584 states and 81020 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:12:51,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:12:51,363 INFO L93 Difference]: Finished difference Result 137775 states and 222018 transitions. [2024-11-11 22:12:51,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:12:51,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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 101 [2024-11-11 22:12:51,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:12:51,701 INFO L225 Difference]: With dead ends: 137775 [2024-11-11 22:12:51,701 INFO L226 Difference]: Without dead ends: 90326 [2024-11-11 22:12:52,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:12:52,073 INFO L435 NwaCegarLoop]: 4309 mSDtfsCounter, 4947 mSDsluCounter, 12534 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4978 SdHoareTripleChecker+Valid, 16843 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:12:52,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4978 Valid, 16843 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 22:12:52,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90326 states.