./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_label43+token_ring.02.cil-2.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_label43+token_ring.02.cil-2.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 c7c4bef8c60b810569a22d8a73144498437260dfbc0e4b7320d169bed033790e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:14:38,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:14:38,748 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:14:38,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:14:38,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:14:38,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:14:38,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:14:38,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:14:38,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:14:38,780 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:14:38,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:14:38,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:14:38,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:14:38,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:14:38,784 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:14:38,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:14:38,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:14:38,785 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:14:38,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:14:38,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:14:38,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:14:38,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:14:38,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:14:38,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:14:38,790 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:14:38,790 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:14:38,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:14:38,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:14:38,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:14:38,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:14:38,791 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:14:38,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:14:38,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:14:38,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:14:38,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:14:38,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:14:38,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:14:38,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:14:38,793 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:14:38,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:14:38,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:14:38,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:14:38,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7c4bef8c60b810569a22d8a73144498437260dfbc0e4b7320d169bed033790e [2024-10-24 02:14:39,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:14:39,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:14:39,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:14:39,103 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:14:39,104 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:14:39,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.02.cil-2.c [2024-10-24 02:14:40,584 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:14:41,144 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:14:41,145 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.02.cil-2.c [2024-10-24 02:14:41,205 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d13dc3a4/f3dc6925ea3142caa987c0f8a05bab32/FLAG86de8f501 [2024-10-24 02:14:41,222 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d13dc3a4/f3dc6925ea3142caa987c0f8a05bab32 [2024-10-24 02:14:41,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:14:41,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:14:41,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:14:41,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:14:41,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:14:41,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:14:41" (1/1) ... [2024-10-24 02:14:41,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625db569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:41, skipping insertion in model container [2024-10-24 02:14:41,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:14:41" (1/1) ... [2024-10-24 02:14:41,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:14:43,120 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_label43+token_ring.02.cil-2.c[381679,381692] [2024-10-24 02:14:43,144 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_label43+token_ring.02.cil-2.c[383339,383352] [2024-10-24 02:14:43,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:14:43,298 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:14:44,014 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_label43+token_ring.02.cil-2.c[381679,381692] [2024-10-24 02:14:44,018 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_label43+token_ring.02.cil-2.c[383339,383352] [2024-10-24 02:14:44,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:14:44,095 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:14:44,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44 WrapperNode [2024-10-24 02:14:44,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:14:44,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:14:44,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:14:44,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:14:44,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:44,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:44,590 INFO L138 Inliner]: procedures = 48, calls = 48, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 12639 [2024-10-24 02:14:44,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:14:44,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:14:44,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:14:44,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:14:44,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:44,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:44,650 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:44,727 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 02:14:44,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:44,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:44,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:45,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:45,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:45,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:45,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:14:45,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:14:45,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:14:45,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:14:45,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (1/1) ... [2024-10-24 02:14:45,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:14:45,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:14:45,156 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 02:14:45,158 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 02:14:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:14:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-24 02:14:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-24 02:14:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:14:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:14:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:14:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:14:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:14:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:14:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:14:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:14:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:14:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:14:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:14:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:14:45,211 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:14:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:14:45,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:14:45,323 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:14:45,326 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:14:52,681 INFO L? ?]: Removed 1699 outVars from TransFormulas that were not future-live. [2024-10-24 02:14:52,682 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:14:52,787 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:14:52,787 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-24 02:14:52,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:14:52 BoogieIcfgContainer [2024-10-24 02:14:52,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:14:52,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:14:52,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:14:52,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:14:52,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:14:41" (1/3) ... [2024-10-24 02:14:52,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f816e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:14:52, skipping insertion in model container [2024-10-24 02:14:52,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:14:44" (2/3) ... [2024-10-24 02:14:52,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f816e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:14:52, skipping insertion in model container [2024-10-24 02:14:52,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:14:52" (3/3) ... [2024-10-24 02:14:52,799 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.02.cil-2.c [2024-10-24 02:14:52,815 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:14:52,815 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:14:52,940 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:14:52,947 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;@7e6d2c12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:14:52,948 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:14:52,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 2249 states, 2221 states have (on average 1.8860873480414229) internal successors, (4189), 2226 states have internal predecessors, (4189), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 02:14:52,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:14:52,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:14:52,980 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] [2024-10-24 02:14:52,981 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:14:52,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:14:52,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1931990387, now seen corresponding path program 1 times [2024-10-24 02:14:52,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:14:52,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264106407] [2024-10-24 02:14:52,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:14:52,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:14:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:53,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:14:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:53,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:14:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:53,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:14:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:53,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:14:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:53,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:14:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:53,528 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 02:14:53,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:14:53,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264106407] [2024-10-24 02:14:53,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264106407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:14:53,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:14:53,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:14:53,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292057582] [2024-10-24 02:14:53,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:14:53,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:14:53,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:14:53,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:14:53,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:14:53,567 INFO L87 Difference]: Start difference. First operand has 2249 states, 2221 states have (on average 1.8860873480414229) internal successors, (4189), 2226 states have internal predecessors, (4189), 18 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:14:54,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:14:54,667 INFO L93 Difference]: Finished difference Result 4665 states and 8728 transitions. [2024-10-24 02:14:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:14:54,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:14:54,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:14:54,704 INFO L225 Difference]: With dead ends: 4665 [2024-10-24 02:14:54,705 INFO L226 Difference]: Without dead ends: 2418 [2024-10-24 02:14:54,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:14:54,724 INFO L432 NwaCegarLoop]: 4068 mSDtfsCounter, 4366 mSDsluCounter, 12180 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4375 SdHoareTripleChecker+Valid, 16248 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:14:54,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4375 Valid, 16248 Invalid, 704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [76 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:14:54,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2024-10-24 02:14:54,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2357. [2024-10-24 02:14:54,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2313 states have (on average 1.8408992650237785) internal successors, (4258), 2317 states have internal predecessors, (4258), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (30), 27 states have call predecessors, (30), 27 states have call successors, (30) [2024-10-24 02:14:54,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 4317 transitions. [2024-10-24 02:14:54,898 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 4317 transitions. Word has length 62 [2024-10-24 02:14:54,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:14:54,899 INFO L471 AbstractCegarLoop]: Abstraction has 2357 states and 4317 transitions. [2024-10-24 02:14:54,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:14:54,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 4317 transitions. [2024-10-24 02:14:54,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:14:54,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:14:54,903 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] [2024-10-24 02:14:54,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:14:54,904 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:14:54,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:14:54,905 INFO L85 PathProgramCache]: Analyzing trace with hash -230609229, now seen corresponding path program 1 times [2024-10-24 02:14:54,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:14:54,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662914047] [2024-10-24 02:14:54,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:14:54,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:14:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:55,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:14:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:55,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:14:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:55,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:14:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:55,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:14:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:55,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:14:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:55,141 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 02:14:55,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:14:55,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662914047] [2024-10-24 02:14:55,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662914047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:14:55,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:14:55,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:14:55,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692718301] [2024-10-24 02:14:55,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:14:55,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:14:55,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:14:55,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:14:55,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:14:55,146 INFO L87 Difference]: Start difference. First operand 2357 states and 4317 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:14:56,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:14:56,323 INFO L93 Difference]: Finished difference Result 2788 states and 4980 transitions. [2024-10-24 02:14:56,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:14:56,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:14:56,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:14:56,337 INFO L225 Difference]: With dead ends: 2788 [2024-10-24 02:14:56,337 INFO L226 Difference]: Without dead ends: 2560 [2024-10-24 02:14:56,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:14:56,341 INFO L432 NwaCegarLoop]: 4143 mSDtfsCounter, 4356 mSDsluCounter, 16397 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4365 SdHoareTripleChecker+Valid, 20540 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:14:56,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4365 Valid, 20540 Invalid, 1067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 02:14:56,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states. [2024-10-24 02:14:56,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 2463. [2024-10-24 02:14:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 2401 states have (on average 1.82923781757601) internal successors, (4392), 2406 states have internal predecessors, (4392), 40 states have call successors, (40), 19 states have call predecessors, (40), 20 states have return successors, (43), 39 states have call predecessors, (43), 38 states have call successors, (43) [2024-10-24 02:14:56,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 4475 transitions. [2024-10-24 02:14:56,433 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 4475 transitions. Word has length 62 [2024-10-24 02:14:56,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:14:56,434 INFO L471 AbstractCegarLoop]: Abstraction has 2463 states and 4475 transitions. [2024-10-24 02:14:56,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:14:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 4475 transitions. [2024-10-24 02:14:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:14:56,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:14:56,440 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] [2024-10-24 02:14:56,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:14:56,441 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:14:56,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:14:56,441 INFO L85 PathProgramCache]: Analyzing trace with hash -711689487, now seen corresponding path program 1 times [2024-10-24 02:14:56,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:14:56,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215024272] [2024-10-24 02:14:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:14:56,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:14:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:56,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:14:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:56,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:14:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:56,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:14:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:56,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:14:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:56,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:14:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:56,632 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 02:14:56,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:14:56,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215024272] [2024-10-24 02:14:56,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215024272] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:14:56,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:14:56,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:14:56,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463191974] [2024-10-24 02:14:56,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:14:56,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:14:56,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:14:56,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:14:56,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:14:56,639 INFO L87 Difference]: Start difference. First operand 2463 states and 4475 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:14:57,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:14:57,755 INFO L93 Difference]: Finished difference Result 3161 states and 5546 transitions. [2024-10-24 02:14:57,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:14:57,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:14:57,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:14:57,775 INFO L225 Difference]: With dead ends: 3161 [2024-10-24 02:14:57,775 INFO L226 Difference]: Without dead ends: 2827 [2024-10-24 02:14:57,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:14:57,780 INFO L432 NwaCegarLoop]: 4073 mSDtfsCounter, 4394 mSDsluCounter, 16214 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4403 SdHoareTripleChecker+Valid, 20287 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:14:57,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4403 Valid, 20287 Invalid, 903 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:14:57,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2024-10-24 02:14:57,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2676. [2024-10-24 02:14:57,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2676 states, 2578 states have (on average 1.8079906904577192) internal successors, (4661), 2585 states have internal predecessors, (4661), 62 states have call successors, (62), 31 states have call predecessors, (62), 34 states have return successors, (73), 63 states have call predecessors, (73), 60 states have call successors, (73) [2024-10-24 02:14:57,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 4796 transitions. [2024-10-24 02:14:57,903 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 4796 transitions. Word has length 62 [2024-10-24 02:14:57,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:14:57,903 INFO L471 AbstractCegarLoop]: Abstraction has 2676 states and 4796 transitions. [2024-10-24 02:14:57,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:14:57,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 4796 transitions. [2024-10-24 02:14:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:14:57,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:14:57,906 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] [2024-10-24 02:14:57,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:14:57,906 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:14:57,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:14:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash -727208205, now seen corresponding path program 1 times [2024-10-24 02:14:57,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:14:57,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972363611] [2024-10-24 02:14:57,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:14:57,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:14:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:57,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:14:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:58,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:14:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:58,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:14:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:58,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:14:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:58,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:14:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:58,066 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 02:14:58,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:14:58,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972363611] [2024-10-24 02:14:58,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972363611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:14:58,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:14:58,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:14:58,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333734686] [2024-10-24 02:14:58,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:14:58,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:14:58,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:14:58,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:14:58,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:14:58,069 INFO L87 Difference]: Start difference. First operand 2676 states and 4796 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:14:59,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:14:59,014 INFO L93 Difference]: Finished difference Result 3963 states and 6765 transitions. [2024-10-24 02:14:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:14:59,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:14:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:14:59,031 INFO L225 Difference]: With dead ends: 3963 [2024-10-24 02:14:59,032 INFO L226 Difference]: Without dead ends: 3416 [2024-10-24 02:14:59,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:14:59,036 INFO L432 NwaCegarLoop]: 4138 mSDtfsCounter, 4364 mSDsluCounter, 16389 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4372 SdHoareTripleChecker+Valid, 20527 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:14:59,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4372 Valid, 20527 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:14:59,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3416 states. [2024-10-24 02:14:59,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3416 to 3060. [2024-10-24 02:14:59,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 2894 states have (on average 1.7736696613683482) internal successors, (5133), 2905 states have internal predecessors, (5133), 102 states have call successors, (102), 55 states have call predecessors, (102), 62 states have return successors, (135), 107 states have call predecessors, (135), 100 states have call successors, (135) [2024-10-24 02:14:59,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 5370 transitions. [2024-10-24 02:14:59,156 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 5370 transitions. Word has length 62 [2024-10-24 02:14:59,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:14:59,156 INFO L471 AbstractCegarLoop]: Abstraction has 3060 states and 5370 transitions. [2024-10-24 02:14:59,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:14:59,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 5370 transitions. [2024-10-24 02:14:59,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:14:59,159 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:14:59,159 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] [2024-10-24 02:14:59,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:14:59,159 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:14:59,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:14:59,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1080296587, now seen corresponding path program 1 times [2024-10-24 02:14:59,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:14:59,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636871548] [2024-10-24 02:14:59,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:14:59,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:14:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:59,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:14:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:59,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:14:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:59,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:14:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:59,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:14:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:59,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:14:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:14:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:14:59,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:14:59,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636871548] [2024-10-24 02:14:59,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636871548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:14:59,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:14:59,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:14:59,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109767331] [2024-10-24 02:14:59,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:14:59,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:14:59,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:14:59,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:14:59,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:14:59,311 INFO L87 Difference]: Start difference. First operand 3060 states and 5370 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:15:00,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:15:00,351 INFO L93 Difference]: Finished difference Result 5261 states and 8705 transitions. [2024-10-24 02:15:00,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:15:00,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:15:00,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:15:00,375 INFO L225 Difference]: With dead ends: 5261 [2024-10-24 02:15:00,376 INFO L226 Difference]: Without dead ends: 4330 [2024-10-24 02:15:00,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:15:00,383 INFO L432 NwaCegarLoop]: 4139 mSDtfsCounter, 4364 mSDsluCounter, 16392 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4376 SdHoareTripleChecker+Valid, 20531 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:15:00,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4376 Valid, 20531 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:15:00,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2024-10-24 02:15:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 3865. [2024-10-24 02:15:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3865 states, 3567 states have (on average 1.7244182786655453) internal successors, (6151), 3586 states have internal predecessors, (6151), 178 states have call successors, (178), 103 states have call predecessors, (178), 118 states have return successors, (273), 191 states have call predecessors, (273), 176 states have call successors, (273) [2024-10-24 02:15:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 6602 transitions. [2024-10-24 02:15:00,664 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 6602 transitions. Word has length 62 [2024-10-24 02:15:00,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:15:00,664 INFO L471 AbstractCegarLoop]: Abstraction has 3865 states and 6602 transitions. [2024-10-24 02:15:00,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:15:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 6602 transitions. [2024-10-24 02:15:00,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-24 02:15:00,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:15:00,671 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] [2024-10-24 02:15:00,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:15:00,671 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:15:00,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:15:00,672 INFO L85 PathProgramCache]: Analyzing trace with hash 847976115, now seen corresponding path program 1 times [2024-10-24 02:15:00,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:15:00,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606634691] [2024-10-24 02:15:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:00,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:15:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:00,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:15:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:00,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:15:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:00,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:15:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:00,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:15:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:00,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:15:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:00,778 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 02:15:00,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:15:00,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606634691] [2024-10-24 02:15:00,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606634691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:15:00,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:15:00,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:15:00,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048327847] [2024-10-24 02:15:00,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:15:00,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:15:00,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:15:00,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:15:00,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:15:00,780 INFO L87 Difference]: Start difference. First operand 3865 states and 6602 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:15:01,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:15:01,613 INFO L93 Difference]: Finished difference Result 7007 states and 11395 transitions. [2024-10-24 02:15:01,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:15:01,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2024-10-24 02:15:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:15:01,639 INFO L225 Difference]: With dead ends: 7007 [2024-10-24 02:15:01,640 INFO L226 Difference]: Without dead ends: 5272 [2024-10-24 02:15:01,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-24 02:15:01,650 INFO L432 NwaCegarLoop]: 4153 mSDtfsCounter, 4486 mSDsluCounter, 12194 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4511 SdHoareTripleChecker+Valid, 16347 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:15:01,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4511 Valid, 16347 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:15:01,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2024-10-24 02:15:01,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 4737. [2024-10-24 02:15:01,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4737 states, 4281 states have (on average 1.6783461807988789) internal successors, (7185), 4317 states have internal predecessors, (7185), 274 states have call successors, (274), 157 states have call predecessors, (274), 180 states have return successors, (397), 278 states have call predecessors, (397), 272 states have call successors, (397) [2024-10-24 02:15:01,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4737 states to 4737 states and 7856 transitions. [2024-10-24 02:15:01,871 INFO L78 Accepts]: Start accepts. Automaton has 4737 states and 7856 transitions. Word has length 62 [2024-10-24 02:15:01,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:15:01,871 INFO L471 AbstractCegarLoop]: Abstraction has 4737 states and 7856 transitions. [2024-10-24 02:15:01,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:15:01,872 INFO L276 IsEmpty]: Start isEmpty. Operand 4737 states and 7856 transitions. [2024-10-24 02:15:01,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:15:01,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:15:01,889 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:01,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:15:01,889 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:15:01,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:15:01,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1849177786, now seen corresponding path program 1 times [2024-10-24 02:15:01,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:15:01,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040864188] [2024-10-24 02:15:01,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:01,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:15:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:01,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:15:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:01,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:15:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:01,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:15:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:02,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:15:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:02,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:15:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:02,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:15:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:02,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:02,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 02:15:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 02:15:02,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:15:02,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040864188] [2024-10-24 02:15:02,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040864188] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:15:02,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276314861] [2024-10-24 02:15:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:02,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:02,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:15:02,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:15:02,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 02:15:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:02,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:15:02,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:15:02,245 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 02:15:02,246 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:15:02,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276314861] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:15:02,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:15:02,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 02:15:02,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791650947] [2024-10-24 02:15:02,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:15:02,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:15:02,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:15:02,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:15:02,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:02,253 INFO L87 Difference]: Start difference. First operand 4737 states and 7856 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:15:02,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:15:02,506 INFO L93 Difference]: Finished difference Result 9834 states and 15520 transitions. [2024-10-24 02:15:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:15:02,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 100 [2024-10-24 02:15:02,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:15:02,547 INFO L225 Difference]: With dead ends: 9834 [2024-10-24 02:15:02,547 INFO L226 Difference]: Without dead ends: 7227 [2024-10-24 02:15:02,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:02,559 INFO L432 NwaCegarLoop]: 4126 mSDtfsCounter, 4104 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 4278 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:15:02,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 4278 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:15:02,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7227 states. [2024-10-24 02:15:03,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7227 to 7197. [2024-10-24 02:15:03,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7197 states, 6327 states have (on average 1.6146672988778252) internal successors, (10216), 6396 states have internal predecessors, (10216), 512 states have call successors, (512), 309 states have call predecessors, (512), 356 states have return successors, (745), 507 states have call predecessors, (745), 510 states have call successors, (745) [2024-10-24 02:15:03,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7197 states to 7197 states and 11473 transitions. [2024-10-24 02:15:03,037 INFO L78 Accepts]: Start accepts. Automaton has 7197 states and 11473 transitions. Word has length 100 [2024-10-24 02:15:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:15:03,037 INFO L471 AbstractCegarLoop]: Abstraction has 7197 states and 11473 transitions. [2024-10-24 02:15:03,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:15:03,037 INFO L276 IsEmpty]: Start isEmpty. Operand 7197 states and 11473 transitions. [2024-10-24 02:15:03,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-24 02:15:03,046 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:15:03,046 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:03,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 02:15:03,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:03,247 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:15:03,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:15:03,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1616599654, now seen corresponding path program 1 times [2024-10-24 02:15:03,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:15:03,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759020585] [2024-10-24 02:15:03,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:03,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:15:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:03,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:15:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:03,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:15:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:03,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:15:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:03,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:15:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:03,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:15:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:03,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:15:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:03,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:03,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 02:15:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:03,375 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 02:15:03,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:15:03,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759020585] [2024-10-24 02:15:03,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759020585] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:15:03,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645672990] [2024-10-24 02:15:03,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:03,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:03,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:15:03,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:15:03,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 02:15:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:03,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:15:03,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:15:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 02:15:03,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:15:03,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645672990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:15:03,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:15:03,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:15:03,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824566296] [2024-10-24 02:15:03,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:15:03,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:15:03,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:15:03,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:15:03,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:03,493 INFO L87 Difference]: Start difference. First operand 7197 states and 11473 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 02:15:03,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:15:03,868 INFO L93 Difference]: Finished difference Result 16951 states and 26175 transitions. [2024-10-24 02:15:03,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:15:03,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 100 [2024-10-24 02:15:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:15:03,924 INFO L225 Difference]: With dead ends: 16951 [2024-10-24 02:15:03,924 INFO L226 Difference]: Without dead ends: 11885 [2024-10-24 02:15:03,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:03,947 INFO L432 NwaCegarLoop]: 4267 mSDtfsCounter, 145 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 8393 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:15:03,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 8393 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:15:03,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11885 states. [2024-10-24 02:15:04,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11885 to 11885. [2024-10-24 02:15:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11885 states, 10202 states have (on average 1.5544991178200354) internal successors, (15859), 10320 states have internal predecessors, (15859), 977 states have call successors, (977), 609 states have call predecessors, (977), 704 states have return successors, (1596), 987 states have call predecessors, (1596), 975 states have call successors, (1596) [2024-10-24 02:15:04,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11885 states to 11885 states and 18432 transitions. [2024-10-24 02:15:04,935 INFO L78 Accepts]: Start accepts. Automaton has 11885 states and 18432 transitions. Word has length 100 [2024-10-24 02:15:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:15:04,936 INFO L471 AbstractCegarLoop]: Abstraction has 11885 states and 18432 transitions. [2024-10-24 02:15:04,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 02:15:04,936 INFO L276 IsEmpty]: Start isEmpty. Operand 11885 states and 18432 transitions. [2024-10-24 02:15:04,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 02:15:04,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:15:04,968 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:04,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 02:15:05,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-24 02:15:05,169 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:15:05,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:15:05,170 INFO L85 PathProgramCache]: Analyzing trace with hash -443554109, now seen corresponding path program 1 times [2024-10-24 02:15:05,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:15:05,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671292926] [2024-10-24 02:15:05,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:05,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:15:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:15:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:15:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:15:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:15:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:15:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:15:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 02:15:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 02:15:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,319 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-24 02:15:05,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:15:05,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671292926] [2024-10-24 02:15:05,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671292926] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:15:05,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057753694] [2024-10-24 02:15:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:05,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:05,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:15:05,323 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:15:05,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 02:15:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:05,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:15:05,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:15:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 02:15:05,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:15:05,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057753694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:15:05,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:15:05,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 02:15:05,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665013490] [2024-10-24 02:15:05,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:15:05,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:15:05,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:15:05,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:15:05,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:05,562 INFO L87 Difference]: Start difference. First operand 11885 states and 18432 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 02:15:06,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:15:06,638 INFO L93 Difference]: Finished difference Result 31009 states and 47101 transitions. [2024-10-24 02:15:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:15:06,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 128 [2024-10-24 02:15:06,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:15:06,732 INFO L225 Difference]: With dead ends: 31009 [2024-10-24 02:15:06,733 INFO L226 Difference]: Without dead ends: 21259 [2024-10-24 02:15:06,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:06,772 INFO L432 NwaCegarLoop]: 4147 mSDtfsCounter, 4065 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4065 SdHoareTripleChecker+Valid, 4299 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:15:06,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4065 Valid, 4299 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:15:06,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21259 states. [2024-10-24 02:15:07,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21259 to 21151. [2024-10-24 02:15:07,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21151 states, 17888 states have (on average 1.5120192307692308) internal successors, (27047), 18120 states have internal predecessors, (27047), 1871 states have call successors, (1871), 1199 states have call predecessors, (1871), 1390 states have return successors, (3038), 1863 states have call predecessors, (3038), 1869 states have call successors, (3038) [2024-10-24 02:15:08,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21151 states to 21151 states and 31956 transitions. [2024-10-24 02:15:08,037 INFO L78 Accepts]: Start accepts. Automaton has 21151 states and 31956 transitions. Word has length 128 [2024-10-24 02:15:08,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:15:08,038 INFO L471 AbstractCegarLoop]: Abstraction has 21151 states and 31956 transitions. [2024-10-24 02:15:08,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 02:15:08,039 INFO L276 IsEmpty]: Start isEmpty. Operand 21151 states and 31956 transitions. [2024-10-24 02:15:08,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 02:15:08,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:15:08,090 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:08,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 02:15:08,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:08,293 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:15:08,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:15:08,294 INFO L85 PathProgramCache]: Analyzing trace with hash -36945596, now seen corresponding path program 1 times [2024-10-24 02:15:08,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:15:08,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907514201] [2024-10-24 02:15:08,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:08,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:15:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:15:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:15:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:15:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:15:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:15:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 02:15:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 02:15:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 02:15:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 02:15:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,419 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 02:15:08,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:15:08,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907514201] [2024-10-24 02:15:08,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907514201] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:15:08,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222910177] [2024-10-24 02:15:08,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:08,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:08,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:15:08,422 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:15:08,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 02:15:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:08,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:15:08,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:15:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 02:15:08,621 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:15:08,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222910177] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:15:08,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:15:08,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:15:08,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391939257] [2024-10-24 02:15:08,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:15:08,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:15:08,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:15:08,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:15:08,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:08,623 INFO L87 Difference]: Start difference. First operand 21151 states and 31956 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 02:15:09,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:15:09,677 INFO L93 Difference]: Finished difference Result 42211 states and 63898 transitions. [2024-10-24 02:15:09,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:15:09,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 144 [2024-10-24 02:15:09,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:15:09,769 INFO L225 Difference]: With dead ends: 42211 [2024-10-24 02:15:09,769 INFO L226 Difference]: Without dead ends: 23193 [2024-10-24 02:15:09,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:09,825 INFO L432 NwaCegarLoop]: 4123 mSDtfsCounter, 4082 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4082 SdHoareTripleChecker+Valid, 4151 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:15:09,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4082 Valid, 4151 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:15:09,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23193 states. [2024-10-24 02:15:11,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23193 to 23193. [2024-10-24 02:15:11,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23193 states, 19718 states have (on average 1.4555735875849478) internal successors, (28701), 19950 states have internal predecessors, (28701), 1925 states have call successors, (1925), 1357 states have call predecessors, (1925), 1548 states have return successors, (3106), 1917 states have call predecessors, (3106), 1923 states have call successors, (3106) [2024-10-24 02:15:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23193 states to 23193 states and 33732 transitions. [2024-10-24 02:15:11,139 INFO L78 Accepts]: Start accepts. Automaton has 23193 states and 33732 transitions. Word has length 144 [2024-10-24 02:15:11,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:15:11,139 INFO L471 AbstractCegarLoop]: Abstraction has 23193 states and 33732 transitions. [2024-10-24 02:15:11,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 02:15:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 23193 states and 33732 transitions. [2024-10-24 02:15:11,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 02:15:11,200 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:15:11,200 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:11,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 02:15:11,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:11,405 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:15:11,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:15:11,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1547018971, now seen corresponding path program 1 times [2024-10-24 02:15:11,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:15:11,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908888104] [2024-10-24 02:15:11,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:11,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:15:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:15:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:15:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:15:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:15:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:15:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 02:15:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 02:15:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 02:15:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 02:15:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-24 02:15:11,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:15:11,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908888104] [2024-10-24 02:15:11,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908888104] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:15:11,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490034842] [2024-10-24 02:15:11,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:11,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:11,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:15:11,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:15:11,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 02:15:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:11,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 02:15:11,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:15:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-24 02:15:11,724 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:15:11,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490034842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:15:11,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:15:11,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:15:11,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514817451] [2024-10-24 02:15:11,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:15:11,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:15:11,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:15:11,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:15:11,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:11,729 INFO L87 Difference]: Start difference. First operand 23193 states and 33732 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-24 02:15:13,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:15:13,000 INFO L93 Difference]: Finished difference Result 39048 states and 56092 transitions. [2024-10-24 02:15:13,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:15:13,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 144 [2024-10-24 02:15:13,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:15:13,140 INFO L225 Difference]: With dead ends: 39048 [2024-10-24 02:15:13,140 INFO L226 Difference]: Without dead ends: 24517 [2024-10-24 02:15:13,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:13,183 INFO L432 NwaCegarLoop]: 4155 mSDtfsCounter, 4079 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 4312 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:15:13,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4079 Valid, 4312 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:15:13,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24517 states. [2024-10-24 02:15:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24517 to 24377. [2024-10-24 02:15:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24377 states, 20790 states have (on average 1.431120731120731) internal successors, (29753), 21022 states have internal predecessors, (29753), 1945 states have call successors, (1945), 1449 states have call predecessors, (1945), 1640 states have return successors, (3218), 1937 states have call predecessors, (3218), 1943 states have call successors, (3218) [2024-10-24 02:15:14,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24377 states to 24377 states and 34916 transitions. [2024-10-24 02:15:14,584 INFO L78 Accepts]: Start accepts. Automaton has 24377 states and 34916 transitions. Word has length 144 [2024-10-24 02:15:14,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:15:14,585 INFO L471 AbstractCegarLoop]: Abstraction has 24377 states and 34916 transitions. [2024-10-24 02:15:14,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-24 02:15:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 24377 states and 34916 transitions. [2024-10-24 02:15:14,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 02:15:14,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:15:14,625 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:14,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 02:15:14,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 02:15:14,830 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:15:14,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:15:14,831 INFO L85 PathProgramCache]: Analyzing trace with hash 557859153, now seen corresponding path program 1 times [2024-10-24 02:15:14,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:15:14,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703777204] [2024-10-24 02:15:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:14,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:15:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:15:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:15:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:15:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:15:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:15:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:15:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 02:15:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 02:15:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 02:15:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:14,954 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-24 02:15:14,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:15:14,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703777204] [2024-10-24 02:15:14,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703777204] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:15:14,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518510808] [2024-10-24 02:15:14,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:14,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:14,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:15:14,957 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:15:14,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 02:15:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:15,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:15:15,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:15:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 02:15:15,091 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:15:15,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518510808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:15:15,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:15:15,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:15:15,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486246647] [2024-10-24 02:15:15,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:15:15,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:15:15,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:15:15,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:15:15,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:15,094 INFO L87 Difference]: Start difference. First operand 24377 states and 34916 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 02:15:17,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:15:17,136 INFO L93 Difference]: Finished difference Result 67691 states and 96134 transitions. [2024-10-24 02:15:17,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:15:17,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 145 [2024-10-24 02:15:17,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:15:17,332 INFO L225 Difference]: With dead ends: 67691 [2024-10-24 02:15:17,333 INFO L226 Difference]: Without dead ends: 45451 [2024-10-24 02:15:17,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:17,404 INFO L432 NwaCegarLoop]: 4277 mSDtfsCounter, 155 mSDsluCounter, 4124 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 8401 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:15:17,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 8401 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:15:17,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45451 states. [2024-10-24 02:15:19,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45451 to 45407. [2024-10-24 02:15:20,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45407 states, 38406 states have (on average 1.3971514867468624) internal successors, (53659), 38868 states have internal predecessors, (53659), 3775 states have call successors, (3775), 2841 states have call predecessors, (3775), 3224 states have return successors, (7134), 3761 states have call predecessors, (7134), 3773 states have call successors, (7134) [2024-10-24 02:15:20,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45407 states to 45407 states and 64568 transitions. [2024-10-24 02:15:20,138 INFO L78 Accepts]: Start accepts. Automaton has 45407 states and 64568 transitions. Word has length 145 [2024-10-24 02:15:20,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:15:20,139 INFO L471 AbstractCegarLoop]: Abstraction has 45407 states and 64568 transitions. [2024-10-24 02:15:20,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 02:15:20,139 INFO L276 IsEmpty]: Start isEmpty. Operand 45407 states and 64568 transitions. [2024-10-24 02:15:20,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 02:15:20,232 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:15:20,232 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:20,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 02:15:20,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:20,433 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:15:20,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:15:20,434 INFO L85 PathProgramCache]: Analyzing trace with hash -2138110948, now seen corresponding path program 1 times [2024-10-24 02:15:20,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:15:20,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435946553] [2024-10-24 02:15:20,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:20,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:15:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:15:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:15:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:15:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:15:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:15:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:15:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 02:15:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 02:15:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 02:15:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,570 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-10-24 02:15:20,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:15:20,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435946553] [2024-10-24 02:15:20,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435946553] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:15:20,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950625274] [2024-10-24 02:15:20,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:20,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:20,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:15:20,573 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:15:20,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 02:15:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:20,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:15:20,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:15:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-24 02:15:20,779 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:15:20,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950625274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:15:20,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:15:20,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:15:20,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921988211] [2024-10-24 02:15:20,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:15:20,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:15:20,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:15:20,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:15:20,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:20,783 INFO L87 Difference]: Start difference. First operand 45407 states and 64568 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 02:15:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:15:23,041 INFO L93 Difference]: Finished difference Result 73407 states and 105859 transitions. [2024-10-24 02:15:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:15:23,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 145 [2024-10-24 02:15:23,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:15:23,172 INFO L225 Difference]: With dead ends: 73407 [2024-10-24 02:15:23,173 INFO L226 Difference]: Without dead ends: 38659 [2024-10-24 02:15:23,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:23,283 INFO L432 NwaCegarLoop]: 4120 mSDtfsCounter, 4077 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4077 SdHoareTripleChecker+Valid, 4147 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:15:23,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4077 Valid, 4147 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:15:23,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38659 states. [2024-10-24 02:15:25,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38659 to 28179. [2024-10-24 02:15:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28179 states, 24002 states have (on average 1.3733438880093325) internal successors, (32963), 24244 states have internal predecessors, (32963), 2255 states have call successors, (2255), 1729 states have call predecessors, (2255), 1920 states have return successors, (3778), 2237 states have call predecessors, (3778), 2253 states have call successors, (3778) [2024-10-24 02:15:25,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28179 states to 28179 states and 38996 transitions. [2024-10-24 02:15:25,536 INFO L78 Accepts]: Start accepts. Automaton has 28179 states and 38996 transitions. Word has length 145 [2024-10-24 02:15:25,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:15:25,537 INFO L471 AbstractCegarLoop]: Abstraction has 28179 states and 38996 transitions. [2024-10-24 02:15:25,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-10-24 02:15:25,537 INFO L276 IsEmpty]: Start isEmpty. Operand 28179 states and 38996 transitions. [2024-10-24 02:15:25,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 02:15:25,567 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:15:25,568 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:25,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 02:15:25,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:25,768 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:15:25,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:15:25,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1382369957, now seen corresponding path program 1 times [2024-10-24 02:15:25,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:15:25,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683811382] [2024-10-24 02:15:25,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:25,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:15:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:15:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 02:15:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 02:15:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 02:15:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 02:15:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 02:15:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 02:15:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 02:15:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:15:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-24 02:15:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:25,895 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 02:15:25,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:15:25,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683811382] [2024-10-24 02:15:25,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683811382] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:15:25,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749860634] [2024-10-24 02:15:25,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:15:25,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:15:25,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:15:25,898 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:15:25,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 02:15:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:15:26,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:15:26,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:15:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 02:15:26,035 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:15:26,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749860634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:15:26,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:15:26,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-24 02:15:26,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101422462] [2024-10-24 02:15:26,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:15:26,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:15:26,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:15:26,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:15:26,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:26,037 INFO L87 Difference]: Start difference. First operand 28179 states and 38996 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 02:15:28,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:15:28,841 INFO L93 Difference]: Finished difference Result 76319 states and 105000 transitions. [2024-10-24 02:15:28,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:15:28,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 145 [2024-10-24 02:15:28,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:15:29,176 INFO L225 Difference]: With dead ends: 76319 [2024-10-24 02:15:29,176 INFO L226 Difference]: Without dead ends: 50287 [2024-10-24 02:15:29,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:15:29,227 INFO L432 NwaCegarLoop]: 4272 mSDtfsCounter, 143 mSDsluCounter, 4121 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 8393 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:15:29,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 8393 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:15:29,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50287 states.