./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.09.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.09.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 2a20e3da1af1b90ef693cd4a0f1486b26f94de8addad62c4c950e54cba535f50 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:10:33,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:10:33,630 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:10:33,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:10:33,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:10:33,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:10:33,672 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:10:33,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:10:33,674 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:10:33,675 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:10:33,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:10:33,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:10:33,676 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:10:33,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:10:33,677 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:10:33,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:10:33,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:10:33,678 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:10:33,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:10:33,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:10:33,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:10:33,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:10:33,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:10:33,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:10:33,684 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:10:33,684 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:10:33,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:10:33,685 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:10:33,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:10:33,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:10:33,686 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:10:33,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:10:33,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:10:33,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:10:33,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:10:33,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:10:33,688 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:10:33,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:10:33,689 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:10:33,689 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:10:33,689 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:10:33,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:10:33,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a20e3da1af1b90ef693cd4a0f1486b26f94de8addad62c4c950e54cba535f50 [2024-10-24 02:10:33,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:10:33,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:10:33,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:10:33,983 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:10:33,984 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:10:33,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.09.cil-1.c [2024-10-24 02:10:35,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:10:36,082 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:10:36,083 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label40+token_ring.09.cil-1.c [2024-10-24 02:10:36,151 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a1af166a/8e142adb4bd14506b7ee587d065cffd0/FLAGd9331f12b [2024-10-24 02:10:36,556 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a1af166a/8e142adb4bd14506b7ee587d065cffd0 [2024-10-24 02:10:36,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:10:36,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:10:36,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:10:36,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:10:36,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:10:36,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:10:36" (1/1) ... [2024-10-24 02:10:36,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e624e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:36, skipping insertion in model container [2024-10-24 02:10:36,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:10:36" (1/1) ... [2024-10-24 02:10:36,768 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:10:38,404 WARN L248 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_label40+token_ring.09.cil-1.c[377069,377082] [2024-10-24 02:10:38,437 WARN L248 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_label40+token_ring.09.cil-1.c[383339,383352] [2024-10-24 02:10:38,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:10:38,689 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:10:39,423 WARN L248 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_label40+token_ring.09.cil-1.c[377069,377082] [2024-10-24 02:10:39,430 WARN L248 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_label40+token_ring.09.cil-1.c[383339,383352] [2024-10-24 02:10:39,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:10:39,521 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:10:39,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39 WrapperNode [2024-10-24 02:10:39,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:10:39,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:10:39,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:10:39,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:10:39,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:39,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,058 INFO L138 Inliner]: procedures = 62, calls = 68, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 13053 [2024-10-24 02:10:40,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:10:40,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:10:40,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:10:40,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:10:40,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,146 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,345 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]. [2024-10-24 02:10:40,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,527 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:10:40,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:10:40,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:10:40,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:10:40,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (1/1) ... [2024-10-24 02:10:40,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:10:40,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:10:40,770 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) [2024-10-24 02:10:40,772 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 [2024-10-24 02:10:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:10:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:10:40,827 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:10:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:10:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:10:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:10:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:10:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:10:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:10:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:10:40,830 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:10:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:10:40,830 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:10:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:10:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:10:40,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:10:40,989 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:10:40,992 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:10:48,971 INFO L? ?]: Removed 1737 outVars from TransFormulas that were not future-live. [2024-10-24 02:10:48,972 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:10:49,091 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:10:49,092 INFO L314 CfgBuilder]: Removed 13 assume(true) statements. [2024-10-24 02:10:49,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:10:49 BoogieIcfgContainer [2024-10-24 02:10:49,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:10:49,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:10:49,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:10:49,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:10:49,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:10:36" (1/3) ... [2024-10-24 02:10:49,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65410da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:10:49, skipping insertion in model container [2024-10-24 02:10:49,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:10:39" (2/3) ... [2024-10-24 02:10:49,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65410da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:10:49, skipping insertion in model container [2024-10-24 02:10:49,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:10:49" (3/3) ... [2024-10-24 02:10:49,102 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.09.cil-1.c [2024-10-24 02:10:49,117 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:10:49,118 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:10:49,230 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:10:49,237 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;@75c1b06c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:10:49,238 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:10:49,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 2402 states, 2370 states have (on average 1.8784810126582279) internal successors, (4452), 2373 states have internal predecessors, (4452), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 02:10:49,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:10:49,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:49,280 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] [2024-10-24 02:10:49,280 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:49,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:49,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1643509846, now seen corresponding path program 1 times [2024-10-24 02:10:49,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:49,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21457885] [2024-10-24 02:10:49,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:49,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:49,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:49,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:10:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:49,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:10:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:49,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:10:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:49,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:10:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:49,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:49,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:49,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21457885] [2024-10-24 02:10:49,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21457885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:49,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:49,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:10:49,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103683819] [2024-10-24 02:10:49,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:49,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:10:49,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:49,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:10:49,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:10:50,008 INFO L87 Difference]: Start difference. First operand has 2402 states, 2370 states have (on average 1.8784810126582279) internal successors, (4452), 2373 states have internal predecessors, (4452), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-10-24 02:10:51,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:51,623 INFO L93 Difference]: Finished difference Result 4898 states and 9162 transitions. [2024-10-24 02:10:51,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:10:51,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 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 131 [2024-10-24 02:10:51,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:51,660 INFO L225 Difference]: With dead ends: 4898 [2024-10-24 02:10:51,661 INFO L226 Difference]: Without dead ends: 2498 [2024-10-24 02:10:51,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 02:10:51,679 INFO L432 NwaCegarLoop]: 4200 mSDtfsCounter, 764 mSDsluCounter, 12138 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 16338 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:51,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 16338 Invalid, 886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:10:51,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2024-10-24 02:10:51,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2398. [2024-10-24 02:10:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2367 states have (on average 1.8411491339247994) internal successors, (4358), 2369 states have internal predecessors, (4358), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 02:10:51,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 4404 transitions. [2024-10-24 02:10:51,840 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 4404 transitions. Word has length 131 [2024-10-24 02:10:51,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:51,840 INFO L471 AbstractCegarLoop]: Abstraction has 2398 states and 4404 transitions. [2024-10-24 02:10:51,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-10-24 02:10:51,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 4404 transitions. [2024-10-24 02:10:51,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:10:51,844 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:51,845 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] [2024-10-24 02:10:51,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:10:51,845 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:51,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:51,846 INFO L85 PathProgramCache]: Analyzing trace with hash 406899052, now seen corresponding path program 1 times [2024-10-24 02:10:51,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:51,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780585181] [2024-10-24 02:10:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:51,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:52,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:52,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:10:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:52,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:10:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:52,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:10:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:52,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:10:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:52,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:52,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780585181] [2024-10-24 02:10:52,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780585181] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:52,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:52,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:10:52,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533106696] [2024-10-24 02:10:52,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:52,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:10:52,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:52,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:10:52,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:10:52,230 INFO L87 Difference]: Start difference. First operand 2398 states and 4404 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 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) [2024-10-24 02:10:54,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:54,613 INFO L93 Difference]: Finished difference Result 3135 states and 5628 transitions. [2024-10-24 02:10:54,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:10:54,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 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 131 [2024-10-24 02:10:54,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:54,627 INFO L225 Difference]: With dead ends: 3135 [2024-10-24 02:10:54,627 INFO L226 Difference]: Without dead ends: 2873 [2024-10-24 02:10:54,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:10:54,631 INFO L432 NwaCegarLoop]: 4171 mSDtfsCounter, 5107 mSDsluCounter, 12498 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5123 SdHoareTripleChecker+Valid, 16669 SdHoareTripleChecker+Invalid, 1887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:54,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5123 Valid, 16669 Invalid, 1887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 02:10:54,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2024-10-24 02:10:54,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2674. [2024-10-24 02:10:54,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2618 states have (on average 1.8216195569136746) internal successors, (4769), 2621 states have internal predecessors, (4769), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (44), 41 states have call predecessors, (44), 41 states have call successors, (44) [2024-10-24 02:10:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4854 transitions. [2024-10-24 02:10:54,730 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4854 transitions. Word has length 131 [2024-10-24 02:10:54,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:54,732 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 4854 transitions. [2024-10-24 02:10:54,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 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) [2024-10-24 02:10:54,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4854 transitions. [2024-10-24 02:10:54,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:10:54,737 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:54,737 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] [2024-10-24 02:10:54,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:10:54,737 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:54,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:54,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1501391760, now seen corresponding path program 1 times [2024-10-24 02:10:54,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:54,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215419084] [2024-10-24 02:10:54,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:54,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:54,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:54,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:10:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:55,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:10:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:55,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:10:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:55,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:10:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:55,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:55,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215419084] [2024-10-24 02:10:55,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215419084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:55,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:55,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:55,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966703475] [2024-10-24 02:10:55,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:55,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:55,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:55,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:55,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:55,088 INFO L87 Difference]: Start difference. First operand 2674 states and 4854 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:10:58,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:10:58,237 INFO L93 Difference]: Finished difference Result 3800 states and 6722 transitions. [2024-10-24 02:10:58,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:10:58,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:10:58,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:10:58,255 INFO L225 Difference]: With dead ends: 3800 [2024-10-24 02:10:58,255 INFO L226 Difference]: Without dead ends: 3262 [2024-10-24 02:10:58,259 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 [2024-10-24 02:10:58,260 INFO L432 NwaCegarLoop]: 4330 mSDtfsCounter, 5140 mSDsluCounter, 17046 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5156 SdHoareTripleChecker+Valid, 21376 SdHoareTripleChecker+Invalid, 2965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:10:58,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5156 Valid, 21376 Invalid, 2965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 2910 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-24 02:10:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-10-24 02:10:58,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2929. [2024-10-24 02:10:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2848 states have (on average 1.8040730337078652) internal successors, (5138), 2852 states have internal predecessors, (5138), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-10-24 02:10:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 5261 transitions. [2024-10-24 02:10:58,402 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 5261 transitions. Word has length 131 [2024-10-24 02:10:58,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:10:58,403 INFO L471 AbstractCegarLoop]: Abstraction has 2929 states and 5261 transitions. [2024-10-24 02:10:58,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:10:58,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 5261 transitions. [2024-10-24 02:10:58,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:10:58,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:10:58,406 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] [2024-10-24 02:10:58,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:10:58,406 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:10:58,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:10:58,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1030035410, now seen corresponding path program 1 times [2024-10-24 02:10:58,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:10:58,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010330147] [2024-10-24 02:10:58,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:10:58,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:10:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:58,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:10:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:58,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:10:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:58,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:10:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:58,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:10:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:58,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:10:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:10:58,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:10:58,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:10:58,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010330147] [2024-10-24 02:10:58,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010330147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:10:58,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:10:58,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:10:58,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284239054] [2024-10-24 02:10:58,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:10:58,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:10:58,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:10:58,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:10:58,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:10:58,709 INFO L87 Difference]: Start difference. First operand 2929 states and 5261 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:00,363 INFO L93 Difference]: Finished difference Result 4067 states and 7159 transitions. [2024-10-24 02:11:00,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:00,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:00,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:00,379 INFO L225 Difference]: With dead ends: 4067 [2024-10-24 02:11:00,379 INFO L226 Difference]: Without dead ends: 3274 [2024-10-24 02:11:00,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:00,385 INFO L432 NwaCegarLoop]: 4158 mSDtfsCounter, 4804 mSDsluCounter, 16442 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4821 SdHoareTripleChecker+Valid, 20600 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:00,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4821 Valid, 20600 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:11:00,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2024-10-24 02:11:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 2929. [2024-10-24 02:11:00,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2848 states have (on average 1.8030196629213484) internal successors, (5135), 2852 states have internal predecessors, (5135), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-10-24 02:11:00,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 5258 transitions. [2024-10-24 02:11:00,522 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 5258 transitions. Word has length 131 [2024-10-24 02:11:00,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:00,522 INFO L471 AbstractCegarLoop]: Abstraction has 2929 states and 5258 transitions. [2024-10-24 02:11:00,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:00,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 5258 transitions. [2024-10-24 02:11:00,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:11:00,525 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:00,525 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] [2024-10-24 02:11:00,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:11:00,526 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:00,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:00,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1133581164, now seen corresponding path program 1 times [2024-10-24 02:11:00,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:00,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453390615] [2024-10-24 02:11:00,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:00,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:00,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:00,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:11:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:00,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:11:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:00,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:11:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:00,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:11:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:00,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:00,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:00,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453390615] [2024-10-24 02:11:00,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453390615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:00,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:00,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:00,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672744940] [2024-10-24 02:11:00,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:00,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:00,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:00,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:00,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:00,786 INFO L87 Difference]: Start difference. First operand 2929 states and 5258 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:02,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:02,251 INFO L93 Difference]: Finished difference Result 4063 states and 7142 transitions. [2024-10-24 02:11:02,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:02,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:02,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:02,266 INFO L225 Difference]: With dead ends: 4063 [2024-10-24 02:11:02,266 INFO L226 Difference]: Without dead ends: 3270 [2024-10-24 02:11:02,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:02,271 INFO L432 NwaCegarLoop]: 4158 mSDtfsCounter, 4802 mSDsluCounter, 16442 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4819 SdHoareTripleChecker+Valid, 20600 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:02,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4819 Valid, 20600 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:11:02,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2024-10-24 02:11:02,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 2929. [2024-10-24 02:11:02,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2848 states have (on average 1.8019662921348314) internal successors, (5132), 2852 states have internal predecessors, (5132), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-10-24 02:11:02,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 5255 transitions. [2024-10-24 02:11:02,381 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 5255 transitions. Word has length 131 [2024-10-24 02:11:02,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:02,382 INFO L471 AbstractCegarLoop]: Abstraction has 2929 states and 5255 transitions. [2024-10-24 02:11:02,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:02,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 5255 transitions. [2024-10-24 02:11:02,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:11:02,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:02,385 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] [2024-10-24 02:11:02,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:11:02,385 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:02,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:02,386 INFO L85 PathProgramCache]: Analyzing trace with hash 94996590, now seen corresponding path program 1 times [2024-10-24 02:11:02,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:02,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354599755] [2024-10-24 02:11:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:02,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:02,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:02,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:11:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:02,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:11:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:02,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:11:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:02,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:11:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:02,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:02,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354599755] [2024-10-24 02:11:02,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354599755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:02,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:02,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:02,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030018269] [2024-10-24 02:11:02,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:02,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:02,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:02,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:02,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:02,584 INFO L87 Difference]: Start difference. First operand 2929 states and 5255 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:03,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:03,681 INFO L93 Difference]: Finished difference Result 4059 states and 7125 transitions. [2024-10-24 02:11:03,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:03,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:03,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:03,696 INFO L225 Difference]: With dead ends: 4059 [2024-10-24 02:11:03,697 INFO L226 Difference]: Without dead ends: 3266 [2024-10-24 02:11:03,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:03,703 INFO L432 NwaCegarLoop]: 4158 mSDtfsCounter, 4919 mSDsluCounter, 12355 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4936 SdHoareTripleChecker+Valid, 16513 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:03,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4936 Valid, 16513 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 02:11:03,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3266 states. [2024-10-24 02:11:03,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3266 to 2929. [2024-10-24 02:11:03,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2848 states have (on average 1.8009129213483146) internal successors, (5129), 2852 states have internal predecessors, (5129), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (64), 60 states have call predecessors, (64), 59 states have call successors, (64) [2024-10-24 02:11:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 5252 transitions. [2024-10-24 02:11:03,803 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 5252 transitions. Word has length 131 [2024-10-24 02:11:03,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:03,804 INFO L471 AbstractCegarLoop]: Abstraction has 2929 states and 5252 transitions. [2024-10-24 02:11:03,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:03,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 5252 transitions. [2024-10-24 02:11:03,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:11:03,806 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:03,806 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] [2024-10-24 02:11:03,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:11:03,807 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:03,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:03,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1878168788, now seen corresponding path program 1 times [2024-10-24 02:11:03,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:03,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174294371] [2024-10-24 02:11:03,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:03,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:03,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:03,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:11:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:04,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:11:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:04,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:11:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:04,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:11:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:04,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:04,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174294371] [2024-10-24 02:11:04,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174294371] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:04,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:04,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:04,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79307880] [2024-10-24 02:11:04,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:04,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:04,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:04,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:04,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:04,028 INFO L87 Difference]: Start difference. First operand 2929 states and 5252 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:06,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:06,469 INFO L93 Difference]: Finished difference Result 4761 states and 8249 transitions. [2024-10-24 02:11:06,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:11:06,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:06,489 INFO L225 Difference]: With dead ends: 4761 [2024-10-24 02:11:06,493 INFO L226 Difference]: Without dead ends: 3968 [2024-10-24 02:11:06,498 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 [2024-10-24 02:11:06,499 INFO L432 NwaCegarLoop]: 4180 mSDtfsCounter, 5191 mSDsluCounter, 16647 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5207 SdHoareTripleChecker+Valid, 20827 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:06,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5207 Valid, 20827 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2352 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 02:11:06,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2024-10-24 02:11:06,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3452. [2024-10-24 02:11:06,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3321 states have (on average 1.7705510388437218) internal successors, (5880), 3327 states have internal predecessors, (5880), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-10-24 02:11:06,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 6083 transitions. [2024-10-24 02:11:06,636 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 6083 transitions. Word has length 131 [2024-10-24 02:11:06,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:06,636 INFO L471 AbstractCegarLoop]: Abstraction has 3452 states and 6083 transitions. [2024-10-24 02:11:06,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 6083 transitions. [2024-10-24 02:11:06,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:11:06,640 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:06,641 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] [2024-10-24 02:11:06,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:11:06,641 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:06,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:06,642 INFO L85 PathProgramCache]: Analyzing trace with hash 274938030, now seen corresponding path program 1 times [2024-10-24 02:11:06,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:06,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434413673] [2024-10-24 02:11:06,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:06,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:06,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:06,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:11:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:06,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:11:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:06,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:11:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:06,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:11:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:06,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:06,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434413673] [2024-10-24 02:11:06,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434413673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:06,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:06,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:06,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935814028] [2024-10-24 02:11:06,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:06,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:06,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:06,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:06,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:06,861 INFO L87 Difference]: Start difference. First operand 3452 states and 6083 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:08,143 INFO L93 Difference]: Finished difference Result 5271 states and 9068 transitions. [2024-10-24 02:11:08,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:11:08,144 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:08,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:08,165 INFO L225 Difference]: With dead ends: 5271 [2024-10-24 02:11:08,167 INFO L226 Difference]: Without dead ends: 3955 [2024-10-24 02:11:08,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:11:08,173 INFO L432 NwaCegarLoop]: 4158 mSDtfsCounter, 4918 mSDsluCounter, 12355 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4935 SdHoareTripleChecker+Valid, 16513 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:08,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4935 Valid, 16513 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 02:11:08,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2024-10-24 02:11:08,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3452. [2024-10-24 02:11:08,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3321 states have (on average 1.7690454682324601) internal successors, (5875), 3327 states have internal predecessors, (5875), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (108), 98 states have call predecessors, (108), 95 states have call successors, (108) [2024-10-24 02:11:08,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 6078 transitions. [2024-10-24 02:11:08,304 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 6078 transitions. Word has length 131 [2024-10-24 02:11:08,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:08,304 INFO L471 AbstractCegarLoop]: Abstraction has 3452 states and 6078 transitions. [2024-10-24 02:11:08,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:08,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 6078 transitions. [2024-10-24 02:11:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:11:08,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:08,307 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] [2024-10-24 02:11:08,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:11:08,307 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:08,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:08,308 INFO L85 PathProgramCache]: Analyzing trace with hash -348343572, now seen corresponding path program 1 times [2024-10-24 02:11:08,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:08,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229315173] [2024-10-24 02:11:08,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:08,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:08,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:08,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:11:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:08,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:11:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:08,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:11:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:08,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:11:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:08,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:08,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229315173] [2024-10-24 02:11:08,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229315173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:08,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:08,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:08,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260247067] [2024-10-24 02:11:08,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:08,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:08,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:08,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:08,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:08,522 INFO L87 Difference]: Start difference. First operand 3452 states and 6078 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:11,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:11,190 INFO L93 Difference]: Finished difference Result 6630 states and 11232 transitions. [2024-10-24 02:11:11,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:11:11,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:11,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:11,208 INFO L225 Difference]: With dead ends: 6630 [2024-10-24 02:11:11,208 INFO L226 Difference]: Without dead ends: 5314 [2024-10-24 02:11:11,214 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 [2024-10-24 02:11:11,217 INFO L432 NwaCegarLoop]: 4328 mSDtfsCounter, 5105 mSDsluCounter, 17046 mSDsCounter, 0 mSdLazyCounter, 2776 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5121 SdHoareTripleChecker+Valid, 21374 SdHoareTripleChecker+Invalid, 2833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:11,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5121 Valid, 21374 Invalid, 2833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2776 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 02:11:11,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5314 states. [2024-10-24 02:11:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5314 to 4498. [2024-10-24 02:11:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4498 states, 4267 states have (on average 1.7265057417389267) internal successors, (7367), 4277 states have internal predecessors, (7367), 167 states have call successors, (167), 54 states have call predecessors, (167), 62 states have return successors, (202), 174 states have call predecessors, (202), 167 states have call successors, (202) [2024-10-24 02:11:11,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 7736 transitions. [2024-10-24 02:11:11,416 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 7736 transitions. Word has length 131 [2024-10-24 02:11:11,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:11,416 INFO L471 AbstractCegarLoop]: Abstraction has 4498 states and 7736 transitions. [2024-10-24 02:11:11,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:11,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 7736 transitions. [2024-10-24 02:11:11,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:11:11,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:11,420 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] [2024-10-24 02:11:11,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:11:11,420 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:11,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:11,420 INFO L85 PathProgramCache]: Analyzing trace with hash -229902098, now seen corresponding path program 1 times [2024-10-24 02:11:11,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:11,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544479318] [2024-10-24 02:11:11,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:11,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:11,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:11,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:11:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:11,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:11:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:11,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:11:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:11,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:11:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:11,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:11,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:11,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544479318] [2024-10-24 02:11:11,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544479318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:11,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:11,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:11,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289470874] [2024-10-24 02:11:11,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:11,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:11,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:11,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:11,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:11,632 INFO L87 Difference]: Start difference. First operand 4498 states and 7736 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:14,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:14,646 INFO L93 Difference]: Finished difference Result 10374 states and 17252 transitions. [2024-10-24 02:11:14,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:11:14,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:14,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:14,676 INFO L225 Difference]: With dead ends: 10374 [2024-10-24 02:11:14,677 INFO L226 Difference]: Without dead ends: 8012 [2024-10-24 02:11:14,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:11:14,689 INFO L432 NwaCegarLoop]: 4328 mSDtfsCounter, 5110 mSDsluCounter, 17046 mSDsCounter, 0 mSdLazyCounter, 2758 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5126 SdHoareTripleChecker+Valid, 21374 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:14,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5126 Valid, 21374 Invalid, 2815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2758 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 02:11:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8012 states. [2024-10-24 02:11:14,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8012 to 6595. [2024-10-24 02:11:15,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6595 states, 6164 states have (on average 1.6802401038286827) internal successors, (10357), 6182 states have internal predecessors, (10357), 311 states have call successors, (311), 102 states have call predecessors, (311), 118 states have return successors, (408), 326 states have call predecessors, (408), 311 states have call successors, (408) [2024-10-24 02:11:15,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6595 states to 6595 states and 11076 transitions. [2024-10-24 02:11:15,024 INFO L78 Accepts]: Start accepts. Automaton has 6595 states and 11076 transitions. Word has length 131 [2024-10-24 02:11:15,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:15,025 INFO L471 AbstractCegarLoop]: Abstraction has 6595 states and 11076 transitions. [2024-10-24 02:11:15,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:15,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6595 states and 11076 transitions. [2024-10-24 02:11:15,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:11:15,030 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:15,030 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] [2024-10-24 02:11:15,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:11:15,031 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:15,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:15,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1159391916, now seen corresponding path program 1 times [2024-10-24 02:11:15,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:15,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711110435] [2024-10-24 02:11:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:15,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:15,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:15,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:11:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:15,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:11:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:15,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:11:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:15,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:11:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:15,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:15,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711110435] [2024-10-24 02:11:15,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711110435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:15,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:15,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:15,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973217618] [2024-10-24 02:11:15,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:15,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:15,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:15,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:15,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:15,240 INFO L87 Difference]: Start difference. First operand 6595 states and 11076 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:18,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:18,735 INFO L93 Difference]: Finished difference Result 19523 states and 32052 transitions. [2024-10-24 02:11:18,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:18,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:18,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:18,790 INFO L225 Difference]: With dead ends: 19523 [2024-10-24 02:11:18,790 INFO L226 Difference]: Without dead ends: 15064 [2024-10-24 02:11:18,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:18,812 INFO L432 NwaCegarLoop]: 4325 mSDtfsCounter, 5178 mSDsluCounter, 17038 mSDsCounter, 0 mSdLazyCounter, 3229 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5193 SdHoareTripleChecker+Valid, 21363 SdHoareTripleChecker+Invalid, 3288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:18,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5193 Valid, 21363 Invalid, 3288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3229 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 02:11:18,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15064 states. [2024-10-24 02:11:19,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15064 to 10709. [2024-10-24 02:11:19,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10709 states, 9894 states have (on average 1.6423084697796644) internal successors, (16249), 9928 states have internal predecessors, (16249), 583 states have call successors, (583), 198 states have call predecessors, (583), 230 states have return successors, (858), 614 states have call predecessors, (858), 583 states have call successors, (858) [2024-10-24 02:11:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10709 states to 10709 states and 17690 transitions. [2024-10-24 02:11:19,514 INFO L78 Accepts]: Start accepts. Automaton has 10709 states and 17690 transitions. Word has length 131 [2024-10-24 02:11:19,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:19,514 INFO L471 AbstractCegarLoop]: Abstraction has 10709 states and 17690 transitions. [2024-10-24 02:11:19,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:19,515 INFO L276 IsEmpty]: Start isEmpty. Operand 10709 states and 17690 transitions. [2024-10-24 02:11:19,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:11:19,521 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:19,521 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] [2024-10-24 02:11:19,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:11:19,521 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:19,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:19,522 INFO L85 PathProgramCache]: Analyzing trace with hash -707316758, now seen corresponding path program 1 times [2024-10-24 02:11:19,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:19,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111021070] [2024-10-24 02:11:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:19,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:11:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:11:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:11:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:11:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:19,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:19,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:19,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111021070] [2024-10-24 02:11:19,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111021070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:19,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:19,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:19,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012227722] [2024-10-24 02:11:19,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:19,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:19,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:19,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:19,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:19,729 INFO L87 Difference]: Start difference. First operand 10709 states and 17690 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:23,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:23,529 INFO L93 Difference]: Finished difference Result 35491 states and 58044 transitions. [2024-10-24 02:11:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:23,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:23,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:23,629 INFO L225 Difference]: With dead ends: 35491 [2024-10-24 02:11:23,629 INFO L226 Difference]: Without dead ends: 26918 [2024-10-24 02:11:23,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:23,670 INFO L432 NwaCegarLoop]: 4326 mSDtfsCounter, 5363 mSDsluCounter, 17041 mSDsCounter, 0 mSdLazyCounter, 2708 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5389 SdHoareTripleChecker+Valid, 21367 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:23,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5389 Valid, 21367 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2708 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 02:11:23,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26918 states. [2024-10-24 02:11:25,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26918 to 19014. [2024-10-24 02:11:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19014 states, 17447 states have (on average 1.6155786095030664) internal successors, (28187), 17513 states have internal predecessors, (28187), 1111 states have call successors, (1111), 390 states have call predecessors, (1111), 454 states have return successors, (1904), 1174 states have call predecessors, (1904), 1111 states have call successors, (1904) [2024-10-24 02:11:25,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19014 states to 19014 states and 31202 transitions. [2024-10-24 02:11:25,264 INFO L78 Accepts]: Start accepts. Automaton has 19014 states and 31202 transitions. Word has length 131 [2024-10-24 02:11:25,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:25,265 INFO L471 AbstractCegarLoop]: Abstraction has 19014 states and 31202 transitions. [2024-10-24 02:11:25,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:25,265 INFO L276 IsEmpty]: Start isEmpty. Operand 19014 states and 31202 transitions. [2024-10-24 02:11:25,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:11:25,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:25,277 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] [2024-10-24 02:11:25,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:11:25,277 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:25,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:25,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2014459156, now seen corresponding path program 1 times [2024-10-24 02:11:25,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:25,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275269704] [2024-10-24 02:11:25,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:25,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:11:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:11:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:11:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:11:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:25,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:25,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:25,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275269704] [2024-10-24 02:11:25,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275269704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:25,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:25,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:25,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132008501] [2024-10-24 02:11:25,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:25,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:25,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:25,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:25,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:25,484 INFO L87 Difference]: Start difference. First operand 19014 states and 31202 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:30,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:30,185 INFO L93 Difference]: Finished difference Result 67154 states and 110194 transitions. [2024-10-24 02:11:30,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:30,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:30,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:30,358 INFO L225 Difference]: With dead ends: 67154 [2024-10-24 02:11:30,359 INFO L226 Difference]: Without dead ends: 50276 [2024-10-24 02:11:30,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:30,417 INFO L432 NwaCegarLoop]: 4326 mSDtfsCounter, 5327 mSDsluCounter, 17041 mSDsCounter, 0 mSdLazyCounter, 2695 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5353 SdHoareTripleChecker+Valid, 21367 SdHoareTripleChecker+Invalid, 2755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:30,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5353 Valid, 21367 Invalid, 2755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2695 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 02:11:30,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50276 states. [2024-10-24 02:11:32,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50276 to 35623. [2024-10-24 02:11:33,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35623 states, 32584 states have (on average 1.599711514853916) internal successors, (52125), 32714 states have internal predecessors, (52125), 2135 states have call successors, (2135), 774 states have call predecessors, (2135), 902 states have return successors, (4450), 2262 states have call predecessors, (4450), 2135 states have call successors, (4450) [2024-10-24 02:11:33,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35623 states to 35623 states and 58710 transitions. [2024-10-24 02:11:33,152 INFO L78 Accepts]: Start accepts. Automaton has 35623 states and 58710 transitions. Word has length 131 [2024-10-24 02:11:33,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:11:33,153 INFO L471 AbstractCegarLoop]: Abstraction has 35623 states and 58710 transitions. [2024-10-24 02:11:33,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:33,154 INFO L276 IsEmpty]: Start isEmpty. Operand 35623 states and 58710 transitions. [2024-10-24 02:11:33,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:11:33,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:11:33,180 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] [2024-10-24 02:11:33,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:11:33,180 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:11:33,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:11:33,181 INFO L85 PathProgramCache]: Analyzing trace with hash -116962390, now seen corresponding path program 1 times [2024-10-24 02:11:33,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:11:33,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716424636] [2024-10-24 02:11:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:11:33,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:11:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:11:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 02:11:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 02:11:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 02:11:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:11:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:11:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:11:33,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:11:33,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716424636] [2024-10-24 02:11:33,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716424636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:11:33,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:11:33,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:11:33,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787939763] [2024-10-24 02:11:33,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:11:33,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:11:33,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:11:33,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:11:33,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:11:33,428 INFO L87 Difference]: Start difference. First operand 35623 states and 58710 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-24 02:11:41,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:11:41,174 INFO L93 Difference]: Finished difference Result 129521 states and 214776 transitions. [2024-10-24 02:11:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:11:41,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 5 states have internal predecessors, (121), 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 131 [2024-10-24 02:11:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:11:41,519 INFO L225 Difference]: With dead ends: 129521 [2024-10-24 02:11:41,519 INFO L226 Difference]: Without dead ends: 96034 [2024-10-24 02:11:41,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:11:41,622 INFO L432 NwaCegarLoop]: 4182 mSDtfsCounter, 5211 mSDsluCounter, 16645 mSDsCounter, 0 mSdLazyCounter, 2647 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5226 SdHoareTripleChecker+Valid, 20827 SdHoareTripleChecker+Invalid, 2734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:11:41,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5226 Valid, 20827 Invalid, 2734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2647 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 02:11:41,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96034 states.