./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.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 0385e1d16d423c194d4048fc3b294994e5a7e416b8435d95ed6181aeb075af1b --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 16:36:30,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:36:30,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:36:30,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:36:30,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:36:30,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:36:30,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:36:30,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:36:30,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:36:30,406 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:36:30,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:36:30,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:36:30,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:36:30,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:36:30,410 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:36:30,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:36:30,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:36:30,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:36:30,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:36:30,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:36:30,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:36:30,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:36:30,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:36:30,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:36:30,416 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:36:30,417 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:36:30,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:36:30,417 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:36:30,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:36:30,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:36:30,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:36:30,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:36:30,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:36:30,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:36:30,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:36:30,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:36:30,419 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:36:30,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:36:30,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:36:30,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:36:30,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:36:30,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:36:30,422 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0385e1d16d423c194d4048fc3b294994e5a7e416b8435d95ed6181aeb075af1b [2024-11-08 16:36:30,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:36:30,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:36:30,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:36:30,686 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:36:30,686 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:36:30,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-1.c [2024-11-08 16:36:32,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:36:32,760 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:36:32,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-1.c [2024-11-08 16:36:32,820 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f551a917d/e66e02f5d0f5476f80582d376a067123/FLAG7b5a3d873 [2024-11-08 16:36:32,836 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f551a917d/e66e02f5d0f5476f80582d376a067123 [2024-11-08 16:36:32,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:36:32,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:36:32,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:36:32,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:36:32,848 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:36:32,849 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:36:32" (1/1) ... [2024-11-08 16:36:32,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f8b5d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:32, skipping insertion in model container [2024-11-08 16:36:32,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:36:32" (1/1) ... [2024-11-08 16:36:33,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:36:34,701 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_label46+token_ring.08.cil-1.c[382357,382370] [2024-11-08 16:36:34,730 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_label46+token_ring.08.cil-1.c[383339,383352] [2024-11-08 16:36:34,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:36:34,915 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:36:35,652 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_label46+token_ring.08.cil-1.c[382357,382370] [2024-11-08 16:36:35,656 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_label46+token_ring.08.cil-1.c[383339,383352] [2024-11-08 16:36:35,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:36:35,729 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:36:35,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35 WrapperNode [2024-11-08 16:36:35,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:36:35,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:36:35,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:36:35,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:36:35,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:35,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,126 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12993 [2024-11-08 16:36:36,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:36:36,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:36:36,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:36:36,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:36:36,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,271 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 16:36:36,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:36:36,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:36:36,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:36:36,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:36:36,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (1/1) ... [2024-11-08 16:36:36,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:36:36,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:36:36,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:36:36,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:36:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:36:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-08 16:36:36,862 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-08 16:36:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-08 16:36:36,862 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-08 16:36:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-08 16:36:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-08 16:36:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-08 16:36:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-08 16:36:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-08 16:36:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-08 16:36:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-08 16:36:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-08 16:36:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:36:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:36:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:36:37,001 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:36:37,004 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:36:44,558 INFO L? ?]: Removed 1731 outVars from TransFormulas that were not future-live. [2024-11-08 16:36:44,558 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:36:44,625 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:36:44,625 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-08 16:36:44,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:36:44 BoogieIcfgContainer [2024-11-08 16:36:44,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:36:44,630 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:36:44,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:36:44,633 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:36:44,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:36:32" (1/3) ... [2024-11-08 16:36:44,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0dde53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:36:44, skipping insertion in model container [2024-11-08 16:36:44,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:35" (2/3) ... [2024-11-08 16:36:44,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0dde53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:36:44, skipping insertion in model container [2024-11-08 16:36:44,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:36:44" (3/3) ... [2024-11-08 16:36:44,637 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.08.cil-1.c [2024-11-08 16:36:44,650 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:36:44,651 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:36:44,777 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:36:44,787 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;@5ef5cc32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:36:44,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:36:44,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 2474 states, 2443 states have (on average 1.845272206303725) internal successors, (4508), 2446 states have internal predecessors, (4508), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 16:36:44,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:36:44,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:36:44,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:36:44,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:36:44,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:36:44,831 INFO L85 PathProgramCache]: Analyzing trace with hash -372695446, now seen corresponding path program 1 times [2024-11-08 16:36:44,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:36:44,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85567335] [2024-11-08 16:36:44,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:36:44,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:36:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:45,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:36:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:45,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:36:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:45,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:36:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:45,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:36:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:45,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:36:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:36:45,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:36:45,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85567335] [2024-11-08 16:36:45,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85567335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:36:45,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:36:45,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:36:45,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545182884] [2024-11-08 16:36:45,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:36:45,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:36:45,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:36:45,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:36:45,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:36:45,481 INFO L87 Difference]: Start difference. First operand has 2474 states, 2443 states have (on average 1.845272206303725) internal successors, (4508), 2446 states have internal predecessors, (4508), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:36:46,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:36:46,930 INFO L93 Difference]: Finished difference Result 5040 states and 9262 transitions. [2024-11-08 16:36:46,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:36:46,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 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 134 [2024-11-08 16:36:46,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:36:46,966 INFO L225 Difference]: With dead ends: 5040 [2024-11-08 16:36:46,966 INFO L226 Difference]: Without dead ends: 2505 [2024-11-08 16:36:46,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:36:46,988 INFO L432 NwaCegarLoop]: 4291 mSDtfsCounter, 747 mSDsluCounter, 12379 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 16670 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:36:46,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 16670 Invalid, 776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 16:36:47,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2024-11-08 16:36:47,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2407. [2024-11-08 16:36:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2377 states have (on average 1.831299957930164) internal successors, (4353), 2379 states have internal predecessors, (4353), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 16:36:47,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4397 transitions. [2024-11-08 16:36:47,160 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 4397 transitions. Word has length 134 [2024-11-08 16:36:47,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:36:47,161 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 4397 transitions. [2024-11-08 16:36:47,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:36:47,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 4397 transitions. [2024-11-08 16:36:47,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:36:47,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:36:47,169 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:36:47,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:36:47,169 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:36:47,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:36:47,170 INFO L85 PathProgramCache]: Analyzing trace with hash 333901160, now seen corresponding path program 1 times [2024-11-08 16:36:47,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:36:47,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278780999] [2024-11-08 16:36:47,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:36:47,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:36:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:47,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:36:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:47,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:36:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:47,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:36:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:47,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:36:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:47,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:36:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:47,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:36:47,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:36:47,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278780999] [2024-11-08 16:36:47,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278780999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:36:47,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:36:47,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:36:47,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155130983] [2024-11-08 16:36:47,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:36:47,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:36:47,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:36:47,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:36:47,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:36:47,513 INFO L87 Difference]: Start difference. First operand 2407 states and 4397 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:36:49,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:36:49,902 INFO L93 Difference]: Finished difference Result 3153 states and 5582 transitions. [2024-11-08 16:36:49,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:36:49,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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 134 [2024-11-08 16:36:49,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:36:49,918 INFO L225 Difference]: With dead ends: 3153 [2024-11-08 16:36:49,919 INFO L226 Difference]: Without dead ends: 2883 [2024-11-08 16:36:49,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:36:49,923 INFO L432 NwaCegarLoop]: 4200 mSDtfsCounter, 5067 mSDsluCounter, 12602 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5082 SdHoareTripleChecker+Valid, 16802 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:36:49,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5082 Valid, 16802 Invalid, 1685 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [92 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 16:36:49,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2024-11-08 16:36:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2688. [2024-11-08 16:36:50,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2688 states, 2634 states have (on average 1.8048595292331056) internal successors, (4754), 2637 states have internal predecessors, (4754), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-08 16:36:50,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 4835 transitions. [2024-11-08 16:36:50,042 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 4835 transitions. Word has length 134 [2024-11-08 16:36:50,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:36:50,043 INFO L471 AbstractCegarLoop]: Abstraction has 2688 states and 4835 transitions. [2024-11-08 16:36:50,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:36:50,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 4835 transitions. [2024-11-08 16:36:50,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:36:50,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:36:50,049 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:36:50,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:36:50,049 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:36:50,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:36:50,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1372602388, now seen corresponding path program 1 times [2024-11-08 16:36:50,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:36:50,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622288783] [2024-11-08 16:36:50,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:36:50,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:36:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:50,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:36:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:50,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:36:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:50,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:36:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:50,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:36:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:50,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:36:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:50,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:36:50,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:36:50,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622288783] [2024-11-08 16:36:50,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622288783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:36:50,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:36:50,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:36:50,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412583167] [2024-11-08 16:36:50,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:36:50,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:36:50,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:36:50,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:36:50,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:36:50,429 INFO L87 Difference]: Start difference. First operand 2688 states and 4835 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:36:53,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:36:53,358 INFO L93 Difference]: Finished difference Result 3824 states and 6638 transitions. [2024-11-08 16:36:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:36:53,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-08 16:36:53,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:36:53,375 INFO L225 Difference]: With dead ends: 3824 [2024-11-08 16:36:53,375 INFO L226 Difference]: Without dead ends: 3273 [2024-11-08 16:36:53,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:36:53,380 INFO L432 NwaCegarLoop]: 4383 mSDtfsCounter, 5086 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5101 SdHoareTripleChecker+Valid, 21656 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:36:53,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5101 Valid, 21656 Invalid, 2584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 16:36:53,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2024-11-08 16:36:53,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2950. [2024-11-08 16:36:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2872 states have (on average 1.7816852367688023) internal successors, (5117), 2876 states have internal predecessors, (5117), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-08 16:36:53,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 5234 transitions. [2024-11-08 16:36:53,484 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 5234 transitions. Word has length 134 [2024-11-08 16:36:53,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:36:53,485 INFO L471 AbstractCegarLoop]: Abstraction has 2950 states and 5234 transitions. [2024-11-08 16:36:53,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:36:53,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 5234 transitions. [2024-11-08 16:36:53,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:36:53,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:36:53,488 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:36:53,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:36:53,489 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:36:53,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:36:53,489 INFO L85 PathProgramCache]: Analyzing trace with hash 629283882, now seen corresponding path program 1 times [2024-11-08 16:36:53,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:36:53,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703607950] [2024-11-08 16:36:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:36:53,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:36:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:53,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:36:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:53,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:36:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:53,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:36:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:53,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:36:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:53,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:36:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:53,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:36:53,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:36:53,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703607950] [2024-11-08 16:36:53,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703607950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:36:53,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:36:53,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:36:53,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37430354] [2024-11-08 16:36:53,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:36:53,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:36:53,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:36:53,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:36:53,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:36:53,865 INFO L87 Difference]: Start difference. First operand 2950 states and 5234 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:36:56,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:36:56,048 INFO L93 Difference]: Finished difference Result 4813 states and 8183 transitions. [2024-11-08 16:36:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:36:56,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-08 16:36:56,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:36:56,073 INFO L225 Difference]: With dead ends: 4813 [2024-11-08 16:36:56,074 INFO L226 Difference]: Without dead ends: 4000 [2024-11-08 16:36:56,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:36:56,080 INFO L432 NwaCegarLoop]: 4210 mSDtfsCounter, 5166 mSDsluCounter, 16783 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5181 SdHoareTripleChecker+Valid, 20993 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:36:56,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5181 Valid, 20993 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 16:36:56,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4000 states. [2024-11-08 16:36:56,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4000 to 3475. [2024-11-08 16:36:56,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3475 states, 3349 states have (on average 1.74499850701702) internal successors, (5844), 3355 states have internal predecessors, (5844), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-08 16:36:56,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3475 states to 3475 states and 6037 transitions. [2024-11-08 16:36:56,212 INFO L78 Accepts]: Start accepts. Automaton has 3475 states and 6037 transitions. Word has length 134 [2024-11-08 16:36:56,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:36:56,216 INFO L471 AbstractCegarLoop]: Abstraction has 3475 states and 6037 transitions. [2024-11-08 16:36:56,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:36:56,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3475 states and 6037 transitions. [2024-11-08 16:36:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:36:56,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:36:56,219 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:36:56,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:36:56,220 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:36:56,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:36:56,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1938538452, now seen corresponding path program 1 times [2024-11-08 16:36:56,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:36:56,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911283964] [2024-11-08 16:36:56,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:36:56,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:36:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:56,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:36:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:56,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:36:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:56,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:36:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:56,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:36:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:56,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:36:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:56,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:36:56,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:36:56,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911283964] [2024-11-08 16:36:56,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911283964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:36:56,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:36:56,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:36:56,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537753930] [2024-11-08 16:36:56,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:36:56,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:36:56,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:36:56,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:36:56,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:36:56,459 INFO L87 Difference]: Start difference. First operand 3475 states and 6037 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:36:58,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:36:58,896 INFO L93 Difference]: Finished difference Result 6718 states and 11142 transitions. [2024-11-08 16:36:58,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:36:58,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-08 16:36:58,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:36:58,921 INFO L225 Difference]: With dead ends: 6718 [2024-11-08 16:36:58,922 INFO L226 Difference]: Without dead ends: 5380 [2024-11-08 16:36:58,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:36:58,929 INFO L432 NwaCegarLoop]: 4381 mSDtfsCounter, 5084 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5099 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:36:58,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5099 Valid, 21654 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 16:36:58,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5380 states. [2024-11-08 16:36:59,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5380 to 4526. [2024-11-08 16:36:59,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 4304 states have (on average 1.695631970260223) internal successors, (7298), 4314 states have internal predecessors, (7298), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-08 16:36:59,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 7649 transitions. [2024-11-08 16:36:59,100 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 7649 transitions. Word has length 134 [2024-11-08 16:36:59,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:36:59,101 INFO L471 AbstractCegarLoop]: Abstraction has 4526 states and 7649 transitions. [2024-11-08 16:36:59,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:36:59,101 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 7649 transitions. [2024-11-08 16:36:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:36:59,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:36:59,104 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:36:59,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:36:59,104 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:36:59,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:36:59,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1467182102, now seen corresponding path program 1 times [2024-11-08 16:36:59,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:36:59,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076353268] [2024-11-08 16:36:59,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:36:59,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:36:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:59,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:36:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:59,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:36:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:59,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:36:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:59,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:36:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:59,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:36:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:36:59,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:36:59,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076353268] [2024-11-08 16:36:59,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076353268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:36:59,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:36:59,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:36:59,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610132652] [2024-11-08 16:36:59,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:36:59,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:36:59,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:36:59,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:36:59,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:36:59,325 INFO L87 Difference]: Start difference. First operand 4526 states and 7649 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:01,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:01,722 INFO L93 Difference]: Finished difference Result 10520 states and 17064 transitions. [2024-11-08 16:37:01,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:37:01,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-08 16:37:01,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:01,757 INFO L225 Difference]: With dead ends: 10520 [2024-11-08 16:37:01,757 INFO L226 Difference]: Without dead ends: 8131 [2024-11-08 16:37:01,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:37:01,767 INFO L432 NwaCegarLoop]: 4381 mSDtfsCounter, 5080 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5095 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:01,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5095 Valid, 21654 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 16:37:01,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8131 states. [2024-11-08 16:37:02,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8131 to 6642. [2024-11-08 16:37:02,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6642 states, 6228 states have (on average 1.642581888246628) internal successors, (10230), 6246 states have internal predecessors, (10230), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-08 16:37:02,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6642 states to 6642 states and 10915 transitions. [2024-11-08 16:37:02,073 INFO L78 Accepts]: Start accepts. Automaton has 6642 states and 10915 transitions. Word has length 134 [2024-11-08 16:37:02,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:02,073 INFO L471 AbstractCegarLoop]: Abstraction has 6642 states and 10915 transitions. [2024-11-08 16:37:02,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:02,074 INFO L276 IsEmpty]: Start isEmpty. Operand 6642 states and 10915 transitions. [2024-11-08 16:37:02,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:37:02,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:02,078 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:02,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:37:02,078 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:02,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:02,079 INFO L85 PathProgramCache]: Analyzing trace with hash 696434472, now seen corresponding path program 1 times [2024-11-08 16:37:02,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:02,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197001372] [2024-11-08 16:37:02,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:02,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:02,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:02,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:37:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:02,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:37:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:02,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:37:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:02,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:37:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:02,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:02,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:02,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197001372] [2024-11-08 16:37:02,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197001372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:02,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:02,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:02,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430451748] [2024-11-08 16:37:02,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:02,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:02,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:02,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:02,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:02,311 INFO L87 Difference]: Start difference. First operand 6642 states and 10915 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:05,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:05,098 INFO L93 Difference]: Finished difference Result 18142 states and 29000 transitions. [2024-11-08 16:37:05,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:37:05,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-08 16:37:05,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:05,164 INFO L225 Difference]: With dead ends: 18142 [2024-11-08 16:37:05,165 INFO L226 Difference]: Without dead ends: 13637 [2024-11-08 16:37:05,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:37:05,190 INFO L432 NwaCegarLoop]: 4381 mSDtfsCounter, 5079 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5094 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:05,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5094 Valid, 21654 Invalid, 2534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 16:37:05,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13637 states. [2024-11-08 16:37:05,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13637 to 10887. [2024-11-08 16:37:05,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10887 states, 10089 states have (on average 1.5969868173258004) internal successors, (16112), 10123 states have internal predecessors, (16112), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-08 16:37:05,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10887 states to 10887 states and 17519 transitions. [2024-11-08 16:37:05,853 INFO L78 Accepts]: Start accepts. Automaton has 10887 states and 17519 transitions. Word has length 134 [2024-11-08 16:37:05,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:05,854 INFO L471 AbstractCegarLoop]: Abstraction has 10887 states and 17519 transitions. [2024-11-08 16:37:05,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 10887 states and 17519 transitions. [2024-11-08 16:37:05,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:37:05,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:05,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:05,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:37:05,862 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:05,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:05,863 INFO L85 PathProgramCache]: Analyzing trace with hash -342150102, now seen corresponding path program 1 times [2024-11-08 16:37:05,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:05,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49197289] [2024-11-08 16:37:05,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:05,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:05,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:05,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:37:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:06,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:37:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:06,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:37:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:06,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:37:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:06,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:06,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:06,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49197289] [2024-11-08 16:37:06,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49197289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:06,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:06,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:06,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122404017] [2024-11-08 16:37:06,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:06,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:06,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:06,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:06,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:06,064 INFO L87 Difference]: Start difference. First operand 10887 states and 17519 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:07,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:07,854 INFO L93 Difference]: Finished difference Result 22528 states and 36089 transitions. [2024-11-08 16:37:07,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:37:07,855 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-08 16:37:07,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:07,903 INFO L225 Difference]: With dead ends: 22528 [2024-11-08 16:37:07,903 INFO L226 Difference]: Without dead ends: 13778 [2024-11-08 16:37:07,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:37:07,930 INFO L432 NwaCegarLoop]: 4185 mSDtfsCounter, 4780 mSDsluCounter, 16543 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 20728 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:07,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4796 Valid, 20728 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:37:07,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13778 states. [2024-11-08 16:37:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13778 to 10887. [2024-11-08 16:37:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10887 states, 10089 states have (on average 1.5937159282386757) internal successors, (16079), 10123 states have internal predecessors, (16079), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-08 16:37:08,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10887 states to 10887 states and 17486 transitions. [2024-11-08 16:37:08,433 INFO L78 Accepts]: Start accepts. Automaton has 10887 states and 17486 transitions. Word has length 134 [2024-11-08 16:37:08,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:08,434 INFO L471 AbstractCegarLoop]: Abstraction has 10887 states and 17486 transitions. [2024-11-08 16:37:08,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:08,434 INFO L276 IsEmpty]: Start isEmpty. Operand 10887 states and 17486 transitions. [2024-11-08 16:37:08,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:37:08,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:08,443 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:08,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:37:08,443 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:08,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:08,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1979651816, now seen corresponding path program 1 times [2024-11-08 16:37:08,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:08,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902537526] [2024-11-08 16:37:08,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:08,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:08,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:08,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:37:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:08,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:37:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:08,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:37:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:08,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:37:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:08,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:08,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902537526] [2024-11-08 16:37:08,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902537526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:08,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:08,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:08,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821252811] [2024-11-08 16:37:08,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:08,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:08,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:08,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:08,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:08,638 INFO L87 Difference]: Start difference. First operand 10887 states and 17486 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:11,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:11,805 INFO L93 Difference]: Finished difference Result 33351 states and 52830 transitions. [2024-11-08 16:37:11,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:37:11,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-08 16:37:11,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:11,906 INFO L225 Difference]: With dead ends: 33351 [2024-11-08 16:37:11,906 INFO L226 Difference]: Without dead ends: 24601 [2024-11-08 16:37:11,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:37:11,948 INFO L432 NwaCegarLoop]: 4381 mSDtfsCounter, 5071 mSDsluCounter, 17273 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5086 SdHoareTripleChecker+Valid, 21654 SdHoareTripleChecker+Invalid, 2496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:11,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5086 Valid, 21654 Invalid, 2496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 16:37:11,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24601 states. [2024-11-08 16:37:13,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24601 to 19441. [2024-11-08 16:37:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19441 states, 17875 states have (on average 1.5603356643356643) internal successors, (27891), 17941 states have internal predecessors, (27891), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2024-11-08 16:37:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19441 states to 19441 states and 30904 transitions. [2024-11-08 16:37:13,094 INFO L78 Accepts]: Start accepts. Automaton has 19441 states and 30904 transitions. Word has length 134 [2024-11-08 16:37:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:13,094 INFO L471 AbstractCegarLoop]: Abstraction has 19441 states and 30904 transitions. [2024-11-08 16:37:13,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 19441 states and 30904 transitions. [2024-11-08 16:37:13,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:37:13,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:13,106 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:13,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:37:13,107 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:13,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:13,107 INFO L85 PathProgramCache]: Analyzing trace with hash -162208662, now seen corresponding path program 1 times [2024-11-08 16:37:13,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:13,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37344276] [2024-11-08 16:37:13,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:13,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:13,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:13,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:37:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:13,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:37:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:13,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:37:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:13,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:37:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:13,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:13,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37344276] [2024-11-08 16:37:13,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37344276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:13,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:13,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:13,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974177181] [2024-11-08 16:37:13,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:13,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:13,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:13,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:13,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:13,306 INFO L87 Difference]: Start difference. First operand 19441 states and 30904 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:17,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:17,608 INFO L93 Difference]: Finished difference Result 71583 states and 113144 transitions. [2024-11-08 16:37:17,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:37:17,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-08 16:37:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:17,810 INFO L225 Difference]: With dead ends: 71583 [2024-11-08 16:37:17,810 INFO L226 Difference]: Without dead ends: 54279 [2024-11-08 16:37:17,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:37:17,866 INFO L432 NwaCegarLoop]: 4379 mSDtfsCounter, 5400 mSDsluCounter, 17265 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5424 SdHoareTripleChecker+Valid, 21644 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:17,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5424 Valid, 21644 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 16:37:17,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54279 states. [2024-11-08 16:37:19,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54279 to 36418. [2024-11-08 16:37:19,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36418 states, 33380 states have (on average 1.5421509886159377) internal successors, (51477), 33510 states have internal predecessors, (51477), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2024-11-08 16:37:19,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36418 states to 36418 states and 58060 transitions. [2024-11-08 16:37:19,823 INFO L78 Accepts]: Start accepts. Automaton has 36418 states and 58060 transitions. Word has length 134 [2024-11-08 16:37:19,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:19,823 INFO L471 AbstractCegarLoop]: Abstraction has 36418 states and 58060 transitions. [2024-11-08 16:37:19,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:19,824 INFO L276 IsEmpty]: Start isEmpty. Operand 36418 states and 58060 transitions. [2024-11-08 16:37:19,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:37:19,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:19,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:19,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:37:19,848 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:19,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:19,848 INFO L85 PathProgramCache]: Analyzing trace with hash -785490264, now seen corresponding path program 1 times [2024-11-08 16:37:19,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:19,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898859758] [2024-11-08 16:37:19,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:19,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:19,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:19,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:37:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:20,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:37:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:20,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:37:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:20,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:37:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:20,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:20,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:20,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898859758] [2024-11-08 16:37:20,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898859758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:20,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:20,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:20,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222189633] [2024-11-08 16:37:20,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:20,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:20,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:20,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:20,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:20,055 INFO L87 Difference]: Start difference. First operand 36418 states and 58060 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:26,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:26,644 INFO L93 Difference]: Finished difference Result 138190 states and 220638 transitions. [2024-11-08 16:37:26,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:37:26,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 134 [2024-11-08 16:37:26,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:27,288 INFO L225 Difference]: With dead ends: 138190 [2024-11-08 16:37:27,288 INFO L226 Difference]: Without dead ends: 103909 [2024-11-08 16:37:27,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:37:27,558 INFO L432 NwaCegarLoop]: 4236 mSDtfsCounter, 5209 mSDsluCounter, 16803 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 21039 SdHoareTripleChecker+Invalid, 2738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:27,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 21039 Invalid, 2738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 16:37:27,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103909 states. [2024-11-08 16:37:32,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103909 to 69667. [2024-11-08 16:37:32,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69667 states, 63749 states have (on average 1.532369135202121) internal successors, (97687), 64007 states have internal predecessors, (97687), 4118 states have call successors, (4118), 1542 states have call predecessors, (4118), 1798 states have return successors, (10935), 4373 states have call predecessors, (10935), 4118 states have call successors, (10935) [2024-11-08 16:37:32,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69667 states to 69667 states and 112740 transitions. [2024-11-08 16:37:32,592 INFO L78 Accepts]: Start accepts. Automaton has 69667 states and 112740 transitions. Word has length 134 [2024-11-08 16:37:32,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:32,593 INFO L471 AbstractCegarLoop]: Abstraction has 69667 states and 112740 transitions. [2024-11-08 16:37:32,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand 69667 states and 112740 transitions. [2024-11-08 16:37:32,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 16:37:32,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:32,633 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:32,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:37:32,633 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:32,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:32,634 INFO L85 PathProgramCache]: Analyzing trace with hash -667048790, now seen corresponding path program 1 times [2024-11-08 16:37:32,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:32,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537068800] [2024-11-08 16:37:32,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:32,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 16:37:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:37:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 16:37:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 16:37:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:32,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:32,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537068800] [2024-11-08 16:37:32,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537068800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:32,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:32,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:32,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387366983] [2024-11-08 16:37:32,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:32,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:32,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:32,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:32,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:32,820 INFO L87 Difference]: Start difference. First operand 69667 states and 112740 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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)