./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.10.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.10.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dc558ff06d1f59013c6fd3228f6de1555b4f43a79036afca93164a3b9d9173fd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:15:50,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:15:50,887 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:15:50,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:15:50,896 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:15:50,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:15:50,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:15:50,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:15:50,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:15:50,917 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:15:50,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:15:50,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:15:50,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:15:50,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:15:50,922 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:15:50,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:15:50,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:15:50,923 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:15:50,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:15:50,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:15:50,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:15:50,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:15:50,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:15:50,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:15:50,925 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:15:50,926 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:15:50,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:15:50,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:15:50,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:15:50,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:15:50,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:15:50,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:15:50,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:15:50,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:15:50,928 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:15:50,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:15:50,929 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:15:50,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:15:50,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:15:50,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:15:50,930 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:15:50,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:15:50,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc558ff06d1f59013c6fd3228f6de1555b4f43a79036afca93164a3b9d9173fd [2024-10-24 02:15:51,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:15:51,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:15:51,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:15:51,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:15:51,220 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:15:51,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.10.cil-1.c [2024-10-24 02:15:52,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:15:53,286 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:15:53,291 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.10.cil-1.c [2024-10-24 02:15:53,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac587ff5b/1c2b137621e84bd39f7d1da47947f6e1/FLAGd872b86e1 [2024-10-24 02:15:53,357 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac587ff5b/1c2b137621e84bd39f7d1da47947f6e1 [2024-10-24 02:15:53,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:15:53,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:15:53,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:15:53,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:15:53,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:15:53,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:15:53" (1/1) ... [2024-10-24 02:15:53,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7560aed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:53, skipping insertion in model container [2024-10-24 02:15:53,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:15:53" (1/1) ... [2024-10-24 02:15:53,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:15:55,205 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.10.cil-1.c[381679,381692] [2024-10-24 02:15:55,232 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.10.cil-1.c[383339,383352] [2024-10-24 02:15:55,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:15:55,500 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:15:56,240 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.10.cil-1.c[381679,381692] [2024-10-24 02:15:56,245 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.10.cil-1.c[383339,383352] [2024-10-24 02:15:56,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:15:56,338 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:15:56,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56 WrapperNode [2024-10-24 02:15:56,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:15:56,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:15:56,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:15:56,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:15:56,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:56,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:56,842 INFO L138 Inliner]: procedures = 64, calls = 72, calls flagged for inlining = 41, calls inlined = 41, statements flattened = 13119 [2024-10-24 02:15:56,842 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:15:56,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:15:56,844 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:15:56,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:15:56,855 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:56,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:56,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:57,136 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 02:15:57,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:57,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:57,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:57,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:57,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:57,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:57,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:15:57,564 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:15:57,564 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:15:57,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:15:57,565 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (1/1) ... [2024-10-24 02:15:57,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:15:57,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:15:57,598 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 02:15:57,601 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 02:15:57,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:15:57,650 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:15:57,650 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:15:57,650 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:15:57,650 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:15:57,651 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:15:57,651 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:15:57,651 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-24 02:15:57,651 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-24 02:15:57,651 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:15:57,651 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:15:57,652 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:15:57,652 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:15:57,652 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:15:57,652 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:15:57,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:15:57,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:15:57,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:15:57,815 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:15:57,817 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:16:05,796 INFO L? ?]: Removed 1747 outVars from TransFormulas that were not future-live. [2024-10-24 02:16:05,797 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:16:05,941 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:16:05,941 INFO L314 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-24 02:16:05,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:05 BoogieIcfgContainer [2024-10-24 02:16:05,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:16:05,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:16:05,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:16:05,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:16:05,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:15:53" (1/3) ... [2024-10-24 02:16:05,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb52a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:05, skipping insertion in model container [2024-10-24 02:16:05,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:15:56" (2/3) ... [2024-10-24 02:16:05,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb52a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:05, skipping insertion in model container [2024-10-24 02:16:05,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:05" (3/3) ... [2024-10-24 02:16:05,954 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.10.cil-1.c [2024-10-24 02:16:05,974 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:16:05,974 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:16:06,202 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:16:06,209 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;@4d8e3af7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:16:06,210 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:16:06,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 2433 states, 2397 states have (on average 1.8777638715060492) internal successors, (4501), 2402 states have internal predecessors, (4501), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 02:16:06,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:06,245 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:06,246 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:06,246 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:06,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:06,251 INFO L85 PathProgramCache]: Analyzing trace with hash 177610299, now seen corresponding path program 1 times [2024-10-24 02:16:06,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:06,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140402743] [2024-10-24 02:16:06,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:06,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:06,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:06,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:06,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:06,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:06,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:06,903 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 02:16:06,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:06,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140402743] [2024-10-24 02:16:06,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140402743] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:06,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:06,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:16:06,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664613049] [2024-10-24 02:16:06,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:06,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:16:06,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:06,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:16:06,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:16:06,951 INFO L87 Difference]: Start difference. First operand has 2433 states, 2397 states have (on average 1.8777638715060492) internal successors, (4501), 2402 states have internal predecessors, (4501), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:16:08,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:08,822 INFO L93 Difference]: Finished difference Result 4967 states and 9286 transitions. [2024-10-24 02:16:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:16:08,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 142 [2024-10-24 02:16:08,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:08,856 INFO L225 Difference]: With dead ends: 4967 [2024-10-24 02:16:08,856 INFO L226 Difference]: Without dead ends: 2538 [2024-10-24 02:16:08,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 02:16:08,870 INFO L432 NwaCegarLoop]: 4230 mSDtfsCounter, 851 mSDsluCounter, 12178 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 16408 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:08,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 16408 Invalid, 968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:16:08,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2024-10-24 02:16:09,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2428. [2024-10-24 02:16:09,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 2394 states have (on average 1.840016708437761) internal successors, (4405), 2397 states have internal predecessors, (4405), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 02:16:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 4455 transitions. [2024-10-24 02:16:09,043 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 4455 transitions. Word has length 142 [2024-10-24 02:16:09,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:09,044 INFO L471 AbstractCegarLoop]: Abstraction has 2428 states and 4455 transitions. [2024-10-24 02:16:09,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:16:09,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 4455 transitions. [2024-10-24 02:16:09,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:09,048 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:09,049 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:09,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:16:09,049 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:09,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:09,050 INFO L85 PathProgramCache]: Analyzing trace with hash 722482873, now seen corresponding path program 1 times [2024-10-24 02:16:09,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:09,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596382792] [2024-10-24 02:16:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:09,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:09,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:09,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:09,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:09,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:09,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:09,628 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 02:16:09,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:09,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596382792] [2024-10-24 02:16:09,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596382792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:09,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:09,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:09,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147922392] [2024-10-24 02:16:09,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:09,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:09,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:09,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:09,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:09,636 INFO L87 Difference]: Start difference. First operand 2428 states and 4455 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:13,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:13,627 INFO L93 Difference]: Finished difference Result 3266 states and 5862 transitions. [2024-10-24 02:16:13,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:16:13,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:13,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:13,646 INFO L225 Difference]: With dead ends: 3266 [2024-10-24 02:16:13,646 INFO L226 Difference]: Without dead ends: 2975 [2024-10-24 02:16:13,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:16:13,650 INFO L432 NwaCegarLoop]: 4383 mSDtfsCounter, 5177 mSDsluCounter, 17236 mSDsCounter, 0 mSdLazyCounter, 3307 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5194 SdHoareTripleChecker+Valid, 21619 SdHoareTripleChecker+Invalid, 3373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:13,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5194 Valid, 21619 Invalid, 3373 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3307 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-24 02:16:13,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2024-10-24 02:16:13,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2736. [2024-10-24 02:16:13,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 2673 states have (on average 1.8204264870931537) internal successors, (4866), 2678 states have internal predecessors, (4866), 47 states have call successors, (47), 13 states have call predecessors, (47), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2024-10-24 02:16:13,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 4965 transitions. [2024-10-24 02:16:13,756 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 4965 transitions. Word has length 142 [2024-10-24 02:16:13,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:13,757 INFO L471 AbstractCegarLoop]: Abstraction has 2736 states and 4965 transitions. [2024-10-24 02:16:13,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 4965 transitions. [2024-10-24 02:16:13,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:13,760 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:13,760 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:13,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:16:13,761 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:13,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:13,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1327926025, now seen corresponding path program 1 times [2024-10-24 02:16:13,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:13,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922787818] [2024-10-24 02:16:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:13,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:13,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:13,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:14,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:14,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:14,064 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 02:16:14,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:14,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922787818] [2024-10-24 02:16:14,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922787818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:14,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:14,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:14,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025314369] [2024-10-24 02:16:14,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:14,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:14,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:14,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:14,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:14,068 INFO L87 Difference]: Start difference. First operand 2736 states and 4965 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:17,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:17,315 INFO L93 Difference]: Finished difference Result 4324 states and 7612 transitions. [2024-10-24 02:16:17,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:16:17,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:17,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:17,339 INFO L225 Difference]: With dead ends: 4324 [2024-10-24 02:16:17,340 INFO L226 Difference]: Without dead ends: 3727 [2024-10-24 02:16:17,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:16:17,350 INFO L432 NwaCegarLoop]: 4334 mSDtfsCounter, 5218 mSDsluCounter, 17172 mSDsCounter, 0 mSdLazyCounter, 3009 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5235 SdHoareTripleChecker+Valid, 21506 SdHoareTripleChecker+Invalid, 3083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:17,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5235 Valid, 21506 Invalid, 3083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3009 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 02:16:17,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2024-10-24 02:16:17,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3300. [2024-10-24 02:16:17,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3185 states have (on average 1.7886970172684458) internal successors, (5697), 3192 states have internal predecessors, (5697), 85 states have call successors, (85), 25 states have call predecessors, (85), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2024-10-24 02:16:17,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 5882 transitions. [2024-10-24 02:16:17,506 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 5882 transitions. Word has length 142 [2024-10-24 02:16:17,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:17,509 INFO L471 AbstractCegarLoop]: Abstraction has 3300 states and 5882 transitions. [2024-10-24 02:16:17,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:17,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 5882 transitions. [2024-10-24 02:16:17,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:17,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:17,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:17,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:16:17,512 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:17,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:17,513 INFO L85 PathProgramCache]: Analyzing trace with hash -839878919, now seen corresponding path program 1 times [2024-10-24 02:16:17,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:17,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767958274] [2024-10-24 02:16:17,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:17,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:17,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:17,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:17,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:17,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:17,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:16:17,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:17,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767958274] [2024-10-24 02:16:17,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767958274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:17,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:17,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:17,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684977356] [2024-10-24 02:16:17,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:17,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:17,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:17,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:17,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:17,821 INFO L87 Difference]: Start difference. First operand 3300 states and 5882 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:19,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:19,671 INFO L93 Difference]: Finished difference Result 4901 states and 8568 transitions. [2024-10-24 02:16:19,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:16:19,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:19,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:19,693 INFO L225 Difference]: With dead ends: 4901 [2024-10-24 02:16:19,694 INFO L226 Difference]: Without dead ends: 3738 [2024-10-24 02:16:19,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:16:19,702 INFO L432 NwaCegarLoop]: 4186 mSDtfsCounter, 4885 mSDsluCounter, 16532 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4903 SdHoareTripleChecker+Valid, 20718 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:19,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4903 Valid, 20718 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 02:16:19,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2024-10-24 02:16:19,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3300. [2024-10-24 02:16:19,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3185 states have (on average 1.78712715855573) internal successors, (5692), 3192 states have internal predecessors, (5692), 85 states have call successors, (85), 25 states have call predecessors, (85), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2024-10-24 02:16:19,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 5877 transitions. [2024-10-24 02:16:19,839 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 5877 transitions. Word has length 142 [2024-10-24 02:16:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:19,839 INFO L471 AbstractCegarLoop]: Abstraction has 3300 states and 5877 transitions. [2024-10-24 02:16:19,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:19,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 5877 transitions. [2024-10-24 02:16:19,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:19,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:19,843 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:19,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:16:19,844 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:19,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:19,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1932514121, now seen corresponding path program 1 times [2024-10-24 02:16:19,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:19,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359872674] [2024-10-24 02:16:19,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:19,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:19,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:20,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:20,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:20,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:20,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:20,098 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 02:16:20,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:20,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359872674] [2024-10-24 02:16:20,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359872674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:20,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:20,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:20,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538928108] [2024-10-24 02:16:20,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:20,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:20,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:20,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:20,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:20,101 INFO L87 Difference]: Start difference. First operand 3300 states and 5877 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:21,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:21,756 INFO L93 Difference]: Finished difference Result 4897 states and 8547 transitions. [2024-10-24 02:16:21,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:16:21,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:21,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:21,777 INFO L225 Difference]: With dead ends: 4897 [2024-10-24 02:16:21,778 INFO L226 Difference]: Without dead ends: 3734 [2024-10-24 02:16:21,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:16:21,784 INFO L432 NwaCegarLoop]: 4186 mSDtfsCounter, 4883 mSDsluCounter, 16532 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4901 SdHoareTripleChecker+Valid, 20718 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:21,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4901 Valid, 20718 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 02:16:21,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2024-10-24 02:16:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3300. [2024-10-24 02:16:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3185 states have (on average 1.785557299843014) internal successors, (5687), 3192 states have internal predecessors, (5687), 85 states have call successors, (85), 25 states have call predecessors, (85), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2024-10-24 02:16:21,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 5872 transitions. [2024-10-24 02:16:21,909 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 5872 transitions. Word has length 142 [2024-10-24 02:16:21,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:21,910 INFO L471 AbstractCegarLoop]: Abstraction has 3300 states and 5872 transitions. [2024-10-24 02:16:21,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 5872 transitions. [2024-10-24 02:16:21,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:21,913 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:21,913 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:21,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:16:21,914 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:21,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:21,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1080280889, now seen corresponding path program 1 times [2024-10-24 02:16:21,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:21,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264048470] [2024-10-24 02:16:21,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:21,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:22,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:22,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:22,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:22,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:22,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:22,170 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 02:16:22,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:22,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264048470] [2024-10-24 02:16:22,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264048470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:22,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:22,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:22,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022040390] [2024-10-24 02:16:22,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:22,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:22,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:22,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:22,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:22,174 INFO L87 Difference]: Start difference. First operand 3300 states and 5872 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:23,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:23,769 INFO L93 Difference]: Finished difference Result 4892 states and 8524 transitions. [2024-10-24 02:16:23,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:16:23,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:23,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:23,788 INFO L225 Difference]: With dead ends: 4892 [2024-10-24 02:16:23,788 INFO L226 Difference]: Without dead ends: 3729 [2024-10-24 02:16:23,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:16:23,795 INFO L432 NwaCegarLoop]: 4186 mSDtfsCounter, 4881 mSDsluCounter, 16532 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4899 SdHoareTripleChecker+Valid, 20718 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:23,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4899 Valid, 20718 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:16:23,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2024-10-24 02:16:23,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3300. [2024-10-24 02:16:23,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3185 states have (on average 1.7839874411302983) internal successors, (5682), 3192 states have internal predecessors, (5682), 85 states have call successors, (85), 25 states have call predecessors, (85), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2024-10-24 02:16:23,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 5867 transitions. [2024-10-24 02:16:23,973 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 5867 transitions. Word has length 142 [2024-10-24 02:16:23,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:23,974 INFO L471 AbstractCegarLoop]: Abstraction has 3300 states and 5867 transitions. [2024-10-24 02:16:23,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:23,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 5867 transitions. [2024-10-24 02:16:23,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:23,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:23,977 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:23,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:16:23,978 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:23,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:23,978 INFO L85 PathProgramCache]: Analyzing trace with hash -762194825, now seen corresponding path program 1 times [2024-10-24 02:16:23,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:23,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738275144] [2024-10-24 02:16:23,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:23,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:24,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:24,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:24,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:24,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:24,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:24,261 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 02:16:24,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:24,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738275144] [2024-10-24 02:16:24,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738275144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:24,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:24,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:24,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912938287] [2024-10-24 02:16:24,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:24,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:24,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:24,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:24,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:24,264 INFO L87 Difference]: Start difference. First operand 3300 states and 5867 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:27,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:27,708 INFO L93 Difference]: Finished difference Result 6373 states and 10927 transitions. [2024-10-24 02:16:27,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:16:27,709 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:27,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:27,731 INFO L225 Difference]: With dead ends: 6373 [2024-10-24 02:16:27,731 INFO L226 Difference]: Without dead ends: 5212 [2024-10-24 02:16:27,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:16:27,737 INFO L432 NwaCegarLoop]: 4380 mSDtfsCounter, 5168 mSDsluCounter, 17236 mSDsCounter, 0 mSdLazyCounter, 3213 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5185 SdHoareTripleChecker+Valid, 21616 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:27,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5185 Valid, 21616 Invalid, 3281 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3213 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 02:16:27,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2024-10-24 02:16:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 4439. [2024-10-24 02:16:27,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4439 states, 4220 states have (on average 1.740047393364929) internal successors, (7343), 4231 states have internal predecessors, (7343), 161 states have call successors, (161), 49 states have call predecessors, (161), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2024-10-24 02:16:27,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 7706 transitions. [2024-10-24 02:16:27,925 INFO L78 Accepts]: Start accepts. Automaton has 4439 states and 7706 transitions. Word has length 142 [2024-10-24 02:16:27,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:27,925 INFO L471 AbstractCegarLoop]: Abstraction has 4439 states and 7706 transitions. [2024-10-24 02:16:27,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:27,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4439 states and 7706 transitions. [2024-10-24 02:16:27,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:27,930 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:27,930 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:27,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:16:27,931 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:27,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:27,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1810769785, now seen corresponding path program 1 times [2024-10-24 02:16:27,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:27,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189043692] [2024-10-24 02:16:27,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:27,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:28,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:28,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:28,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:28,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:28,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:28,173 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 02:16:28,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:28,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189043692] [2024-10-24 02:16:28,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189043692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:28,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:28,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:28,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246526448] [2024-10-24 02:16:28,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:28,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:28,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:28,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:28,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:28,176 INFO L87 Difference]: Start difference. First operand 4439 states and 7706 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:29,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:29,768 INFO L93 Difference]: Finished difference Result 7548 states and 12863 transitions. [2024-10-24 02:16:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:16:29,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:29,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:29,786 INFO L225 Difference]: With dead ends: 7548 [2024-10-24 02:16:29,786 INFO L226 Difference]: Without dead ends: 5246 [2024-10-24 02:16:29,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:16:29,796 INFO L432 NwaCegarLoop]: 4186 mSDtfsCounter, 4885 mSDsluCounter, 16532 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4903 SdHoareTripleChecker+Valid, 20718 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:29,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4903 Valid, 20718 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:16:29,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5246 states. [2024-10-24 02:16:29,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5246 to 4439. [2024-10-24 02:16:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4439 states, 4220 states have (on average 1.7379146919431279) internal successors, (7334), 4231 states have internal predecessors, (7334), 161 states have call successors, (161), 49 states have call predecessors, (161), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2024-10-24 02:16:29,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 7697 transitions. [2024-10-24 02:16:29,982 INFO L78 Accepts]: Start accepts. Automaton has 4439 states and 7697 transitions. Word has length 142 [2024-10-24 02:16:29,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:29,982 INFO L471 AbstractCegarLoop]: Abstraction has 4439 states and 7697 transitions. [2024-10-24 02:16:29,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:29,983 INFO L276 IsEmpty]: Start isEmpty. Operand 4439 states and 7697 transitions. [2024-10-24 02:16:29,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:29,986 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:29,986 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:29,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:16:29,986 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:29,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:29,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1478126647, now seen corresponding path program 1 times [2024-10-24 02:16:29,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:29,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286344983] [2024-10-24 02:16:29,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:29,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:30,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:30,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:30,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:30,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:30,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:30,310 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 02:16:30,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:30,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286344983] [2024-10-24 02:16:30,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286344983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:30,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:30,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:30,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041595984] [2024-10-24 02:16:30,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:30,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:30,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:30,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:30,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:30,313 INFO L87 Difference]: Start difference. First operand 4439 states and 7697 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:33,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:33,328 INFO L93 Difference]: Finished difference Result 10480 states and 17612 transitions. [2024-10-24 02:16:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:16:33,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:33,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:33,357 INFO L225 Difference]: With dead ends: 10480 [2024-10-24 02:16:33,358 INFO L226 Difference]: Without dead ends: 8180 [2024-10-24 02:16:33,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:16:33,369 INFO L432 NwaCegarLoop]: 4380 mSDtfsCounter, 5200 mSDsluCounter, 17236 mSDsCounter, 0 mSdLazyCounter, 3093 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5217 SdHoareTripleChecker+Valid, 21616 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:33,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5217 Valid, 21616 Invalid, 3161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3093 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 02:16:33,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2024-10-24 02:16:33,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 6739. [2024-10-24 02:16:33,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6739 states, 6312 states have (on average 1.692173637515843) internal successors, (10681), 6331 states have internal predecessors, (10681), 313 states have call successors, (313), 97 states have call predecessors, (313), 112 states have return successors, (424), 326 states have call predecessors, (424), 311 states have call successors, (424) [2024-10-24 02:16:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6739 states to 6739 states and 11418 transitions. [2024-10-24 02:16:33,692 INFO L78 Accepts]: Start accepts. Automaton has 6739 states and 11418 transitions. Word has length 142 [2024-10-24 02:16:33,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:33,693 INFO L471 AbstractCegarLoop]: Abstraction has 6739 states and 11418 transitions. [2024-10-24 02:16:33,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:33,693 INFO L276 IsEmpty]: Start isEmpty. Operand 6739 states and 11418 transitions. [2024-10-24 02:16:33,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:33,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:33,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:33,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:16:33,699 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:33,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:33,700 INFO L85 PathProgramCache]: Analyzing trace with hash -814954379, now seen corresponding path program 1 times [2024-10-24 02:16:33,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:33,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393583635] [2024-10-24 02:16:33,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:33,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:33,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:33,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:33,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:33,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:33,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:33,930 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 02:16:33,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:33,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393583635] [2024-10-24 02:16:33,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393583635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:33,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:33,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:33,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984096218] [2024-10-24 02:16:33,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:33,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:33,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:33,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:33,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:33,932 INFO L87 Difference]: Start difference. First operand 6739 states and 11418 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:37,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:37,172 INFO L93 Difference]: Finished difference Result 18724 states and 31133 transitions. [2024-10-24 02:16:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:16:37,173 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:37,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:37,231 INFO L225 Difference]: With dead ends: 18724 [2024-10-24 02:16:37,232 INFO L226 Difference]: Without dead ends: 14124 [2024-10-24 02:16:37,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:16:37,257 INFO L432 NwaCegarLoop]: 4333 mSDtfsCounter, 5226 mSDsluCounter, 17172 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5243 SdHoareTripleChecker+Valid, 21505 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:37,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5243 Valid, 21505 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 02:16:37,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14124 states. [2024-10-24 02:16:37,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14124 to 11355. [2024-10-24 02:16:37,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11355 states, 10512 states have (on average 1.65515601217656) internal successors, (17399), 10547 states have internal predecessors, (17399), 617 states have call successors, (617), 193 states have call predecessors, (617), 224 states have return successors, (922), 646 states have call predecessors, (922), 615 states have call successors, (922) [2024-10-24 02:16:37,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11355 states to 11355 states and 18938 transitions. [2024-10-24 02:16:37,842 INFO L78 Accepts]: Start accepts. Automaton has 11355 states and 18938 transitions. Word has length 142 [2024-10-24 02:16:37,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:37,842 INFO L471 AbstractCegarLoop]: Abstraction has 11355 states and 18938 transitions. [2024-10-24 02:16:37,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:37,843 INFO L276 IsEmpty]: Start isEmpty. Operand 11355 states and 18938 transitions. [2024-10-24 02:16:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:37,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:37,851 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:37,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:16:37,851 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:37,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:37,852 INFO L85 PathProgramCache]: Analyzing trace with hash 912190583, now seen corresponding path program 1 times [2024-10-24 02:16:37,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:37,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988616026] [2024-10-24 02:16:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:37,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:37,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:37,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:38,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:38,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:38,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:38,073 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 02:16:38,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:38,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988616026] [2024-10-24 02:16:38,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988616026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:38,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:38,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:38,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427272497] [2024-10-24 02:16:38,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:38,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:38,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:38,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:38,076 INFO L87 Difference]: Start difference. First operand 11355 states and 18938 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:42,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:42,836 INFO L93 Difference]: Finished difference Result 39308 states and 64993 transitions. [2024-10-24 02:16:42,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:16:42,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:42,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:42,967 INFO L225 Difference]: With dead ends: 39308 [2024-10-24 02:16:42,967 INFO L226 Difference]: Without dead ends: 30092 [2024-10-24 02:16:43,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:16:43,011 INFO L432 NwaCegarLoop]: 4380 mSDtfsCounter, 5566 mSDsluCounter, 17231 mSDsCounter, 0 mSdLazyCounter, 3067 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5594 SdHoareTripleChecker+Valid, 21611 SdHoareTripleChecker+Invalid, 3138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:43,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5594 Valid, 21611 Invalid, 3138 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3067 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 02:16:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30092 states. [2024-10-24 02:16:44,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30092 to 20555. [2024-10-24 02:16:44,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20555 states, 18912 states have (on average 1.6312923011844331) internal successors, (30851), 18979 states have internal predecessors, (30851), 1193 states have call successors, (1193), 385 states have call predecessors, (1193), 448 states have return successors, (2048), 1254 states have call predecessors, (2048), 1191 states have call successors, (2048) [2024-10-24 02:16:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20555 states to 20555 states and 34092 transitions. [2024-10-24 02:16:44,624 INFO L78 Accepts]: Start accepts. Automaton has 20555 states and 34092 transitions. Word has length 142 [2024-10-24 02:16:44,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:44,625 INFO L471 AbstractCegarLoop]: Abstraction has 20555 states and 34092 transitions. [2024-10-24 02:16:44,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:44,626 INFO L276 IsEmpty]: Start isEmpty. Operand 20555 states and 34092 transitions. [2024-10-24 02:16:44,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:44,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:44,639 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:44,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:16:44,640 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:44,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:44,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1383546933, now seen corresponding path program 1 times [2024-10-24 02:16:44,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:44,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104848878] [2024-10-24 02:16:44,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:44,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:44,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:44,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:44,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:44,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:44,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:44,864 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 02:16:44,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:44,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104848878] [2024-10-24 02:16:44,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104848878] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:44,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:44,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:44,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349195689] [2024-10-24 02:16:44,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:44,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:44,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:44,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:44,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:44,866 INFO L87 Difference]: Start difference. First operand 20555 states and 34092 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:50,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:16:50,614 INFO L93 Difference]: Finished difference Result 75484 states and 125245 transitions. [2024-10-24 02:16:50,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:16:50,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:16:50,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:16:50,991 INFO L225 Difference]: With dead ends: 75484 [2024-10-24 02:16:50,992 INFO L226 Difference]: Without dead ends: 57068 [2024-10-24 02:16:51,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:16:51,059 INFO L432 NwaCegarLoop]: 4376 mSDtfsCounter, 5285 mSDsluCounter, 17228 mSDsCounter, 0 mSdLazyCounter, 3603 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5301 SdHoareTripleChecker+Valid, 21604 SdHoareTripleChecker+Invalid, 3673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:16:51,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5301 Valid, 21604 Invalid, 3673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3603 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 02:16:51,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57068 states. [2024-10-24 02:16:53,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57068 to 38315. [2024-10-24 02:16:53,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38315 states, 35104 states have (on average 1.614260483135825) internal successors, (56667), 35235 states have internal predecessors, (56667), 2313 states have call successors, (2313), 769 states have call predecessors, (2313), 896 states have return successors, (4754), 2438 states have call predecessors, (4754), 2311 states have call successors, (4754) [2024-10-24 02:16:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38315 states to 38315 states and 63734 transitions. [2024-10-24 02:16:53,432 INFO L78 Accepts]: Start accepts. Automaton has 38315 states and 63734 transitions. Word has length 142 [2024-10-24 02:16:53,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:16:53,433 INFO L471 AbstractCegarLoop]: Abstraction has 38315 states and 63734 transitions. [2024-10-24 02:16:53,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:16:53,433 INFO L276 IsEmpty]: Start isEmpty. Operand 38315 states and 63734 transitions. [2024-10-24 02:16:53,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 02:16:53,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:16:53,457 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:16:53,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:16:53,457 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:16:53,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:16:53,457 INFO L85 PathProgramCache]: Analyzing trace with hash -263816009, now seen corresponding path program 1 times [2024-10-24 02:16:53,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:16:53,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345700577] [2024-10-24 02:16:53,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:16:53,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:16:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:53,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:16:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:53,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 02:16:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:53,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 02:16:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:53,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 02:16:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:53,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 02:16:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:16:53,676 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 02:16:53,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:16:53,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345700577] [2024-10-24 02:16:53,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345700577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:16:53,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:16:53,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:16:53,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116025253] [2024-10-24 02:16:53,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:16:53,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:16:53,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:16:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:16:53,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:16:53,678 INFO L87 Difference]: Start difference. First operand 38315 states and 63734 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 02:17:02,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:17:02,170 INFO L93 Difference]: Finished difference Result 145020 states and 242573 transitions. [2024-10-24 02:17:02,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:17:02,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 142 [2024-10-24 02:17:02,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:17:02,593 INFO L225 Difference]: With dead ends: 145020 [2024-10-24 02:17:02,593 INFO L226 Difference]: Without dead ends: 108844 [2024-10-24 02:17:02,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:17:02,703 INFO L432 NwaCegarLoop]: 4379 mSDtfsCounter, 5498 mSDsluCounter, 17231 mSDsCounter, 0 mSdLazyCounter, 3036 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5526 SdHoareTripleChecker+Valid, 21610 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:17:02,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5526 Valid, 21610 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 3036 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-24 02:17:02,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108844 states.