./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_label42+token_ring.06.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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_label42+token_ring.06.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 52e4ee61a76abd07bd19c87e00a938922ca891ef038e845cba6c6b4d21ef1798 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 04:22:38,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 04:22:38,302 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 04:22:38,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 04:22:38,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 04:22:38,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 04:22:38,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 04:22:38,351 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 04:22:38,351 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 04:22:38,352 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 04:22:38,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 04:22:38,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 04:22:38,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 04:22:38,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 04:22:38,356 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 04:22:38,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 04:22:38,357 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 04:22:38,358 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 04:22:38,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 04:22:38,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 04:22:38,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 04:22:38,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 04:22:38,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 04:22:38,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 04:22:38,364 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 04:22:38,364 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 04:22:38,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 04:22:38,365 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 04:22:38,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 04:22:38,365 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 04:22:38,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 04:22:38,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 04:22:38,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:22:38,366 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 04:22:38,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 04:22:38,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 04:22:38,367 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 04:22:38,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 04:22:38,368 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 04:22:38,368 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 04:22:38,369 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 04:22:38,369 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 04:22:38,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52e4ee61a76abd07bd19c87e00a938922ca891ef038e845cba6c6b4d21ef1798 [2024-10-14 04:22:38,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 04:22:38,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 04:22:38,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 04:22:38,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 04:22:38,640 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 04:22:38,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.06.cil-1.c [2024-10-14 04:22:40,111 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 04:22:40,694 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 04:22:40,695 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.06.cil-1.c [2024-10-14 04:22:40,751 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d9c89cd9/28aa6f5c8608448d9fad8e3df5d04e73/FLAGa1c77f078 [2024-10-14 04:22:40,804 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d9c89cd9/28aa6f5c8608448d9fad8e3df5d04e73 [2024-10-14 04:22:40,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 04:22:40,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 04:22:40,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 04:22:40,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 04:22:40,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 04:22:40,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:22:40" (1/1) ... [2024-10-14 04:22:40,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f32a2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:40, skipping insertion in model container [2024-10-14 04:22:40,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:22:40" (1/1) ... [2024-10-14 04:22:40,996 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 04:22:42,551 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_label42+token_ring.06.cil-1.c[378560,378573] [2024-10-14 04:22:42,591 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_label42+token_ring.06.cil-1.c[383339,383352] [2024-10-14 04:22:42,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:22:42,786 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 04:22:43,618 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_label42+token_ring.06.cil-1.c[378560,378573] [2024-10-14 04:22:43,624 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_label42+token_ring.06.cil-1.c[383339,383352] [2024-10-14 04:22:43,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 04:22:43,709 INFO L204 MainTranslator]: Completed translation [2024-10-14 04:22:43,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43 WrapperNode [2024-10-14 04:22:43,710 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 04:22:43,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 04:22:43,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 04:22:43,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 04:22:43,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:43,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,228 INFO L138 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 12879 [2024-10-14 04:22:44,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 04:22:44,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 04:22:44,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 04:22:44,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 04:22:44,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,516 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]. [2024-10-14 04:22:44,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 04:22:44,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 04:22:44,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 04:22:44,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 04:22:44,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (1/1) ... [2024-10-14 04:22:44,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 04:22:44,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 04:22:44,934 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) [2024-10-14 04:22:44,936 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 [2024-10-14 04:22:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 04:22:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-14 04:22:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-14 04:22:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-14 04:22:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-14 04:22:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-14 04:22:44,980 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-14 04:22:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-14 04:22:44,981 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-14 04:22:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-14 04:22:44,981 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-14 04:22:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-14 04:22:44,981 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-14 04:22:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-14 04:22:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-14 04:22:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 04:22:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 04:22:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 04:22:45,088 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 04:22:45,092 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 04:22:52,328 INFO L? ?]: Removed 1723 outVars from TransFormulas that were not future-live. [2024-10-14 04:22:52,328 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 04:22:52,507 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 04:22:52,507 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-14 04:22:52,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:22:52 BoogieIcfgContainer [2024-10-14 04:22:52,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 04:22:52,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 04:22:52,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 04:22:52,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 04:22:52,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:22:40" (1/3) ... [2024-10-14 04:22:52,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5316dd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:22:52, skipping insertion in model container [2024-10-14 04:22:52,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:22:43" (2/3) ... [2024-10-14 04:22:52,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5316dd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:22:52, skipping insertion in model container [2024-10-14 04:22:52,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:22:52" (3/3) ... [2024-10-14 04:22:52,516 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.06.cil-1.c [2024-10-14 04:22:52,531 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 04:22:52,532 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 04:22:52,641 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 04:22:52,651 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;@328fea93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 04:22:52,651 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 04:22:52,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-14 04:22:52,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:22:52,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:22:52,681 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] [2024-10-14 04:22:52,682 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:22:52,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:22:52,688 INFO L85 PathProgramCache]: Analyzing trace with hash 683046169, now seen corresponding path program 1 times [2024-10-14 04:22:52,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:22:52,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884923178] [2024-10-14 04:22:52,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:22:52,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:22:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:53,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:22:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:53,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:22:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:53,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:22:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:53,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:22:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:53,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:22:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:53,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:22:53,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:22:53,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884923178] [2024-10-14 04:22:53,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884923178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:22:53,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:22:53,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 04:22:53,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135779141] [2024-10-14 04:22:53,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:22:53,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 04:22:53,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:22:53,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 04:22:53,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 04:22:53,244 INFO L87 Difference]: Start difference. First operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:22:54,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:22:54,418 INFO L93 Difference]: Finished difference Result 4743 states and 8886 transitions. [2024-10-14 04:22:54,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 04:22:54,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:22:54,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:22:54,450 INFO L225 Difference]: With dead ends: 4743 [2024-10-14 04:22:54,450 INFO L226 Difference]: Without dead ends: 2406 [2024-10-14 04:22:54,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 04:22:54,467 INFO L432 NwaCegarLoop]: 4154 mSDtfsCounter, 567 mSDsluCounter, 12090 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 16244 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:22:54,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 16244 Invalid, 648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 04:22:54,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2024-10-14 04:22:54,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2336. [2024-10-14 04:22:54,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8460537727666955) internal successors, (4257), 2309 states have internal predecessors, (4257), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 04:22:54,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4299 transitions. [2024-10-14 04:22:54,619 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4299 transitions. Word has length 102 [2024-10-14 04:22:54,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:22:54,620 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 4299 transitions. [2024-10-14 04:22:54,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:22:54,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4299 transitions. [2024-10-14 04:22:54,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:22:54,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:22:54,624 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] [2024-10-14 04:22:54,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 04:22:54,625 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:22:54,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:22:54,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1671339113, now seen corresponding path program 1 times [2024-10-14 04:22:54,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:22:54,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258767836] [2024-10-14 04:22:54,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:22:54,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:22:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:54,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:22:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:54,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:22:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:54,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:22:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:55,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:22:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:55,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:22:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:22:55,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:22:55,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258767836] [2024-10-14 04:22:55,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258767836] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:22:55,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:22:55,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:22:55,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308599211] [2024-10-14 04:22:55,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:22:55,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:22:55,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:22:55,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:22:55,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:22:55,050 INFO L87 Difference]: Start difference. First operand 2336 states and 4299 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:22:57,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:22:57,571 INFO L93 Difference]: Finished difference Result 2902 states and 5234 transitions. [2024-10-14 04:22:57,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:22:57,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:22:57,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:22:57,585 INFO L225 Difference]: With dead ends: 2902 [2024-10-14 04:22:57,586 INFO L226 Difference]: Without dead ends: 2699 [2024-10-14 04:22:57,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:22:57,589 INFO L432 NwaCegarLoop]: 4263 mSDtfsCounter, 4757 mSDsluCounter, 16816 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 21079 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:22:57,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 21079 Invalid, 2245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 2187 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 04:22:57,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2024-10-14 04:22:57,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2548. [2024-10-14 04:22:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2493 states have (on average 1.829923786602487) internal successors, (4562), 2498 states have internal predecessors, (4562), 39 states have call successors, (39), 13 states have call predecessors, (39), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2024-10-14 04:22:57,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4645 transitions. [2024-10-14 04:22:57,695 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4645 transitions. Word has length 102 [2024-10-14 04:22:57,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:22:57,696 INFO L471 AbstractCegarLoop]: Abstraction has 2548 states and 4645 transitions. [2024-10-14 04:22:57,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:22:57,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4645 transitions. [2024-10-14 04:22:57,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:22:57,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:22:57,702 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] [2024-10-14 04:22:57,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 04:22:57,703 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:22:57,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:22:57,704 INFO L85 PathProgramCache]: Analyzing trace with hash 665053397, now seen corresponding path program 1 times [2024-10-14 04:22:57,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:22:57,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845778046] [2024-10-14 04:22:57,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:22:57,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:22:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:57,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:22:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:57,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:22:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:57,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:22:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:57,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:22:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:57,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:22:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:22:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:22:57,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:22:57,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845778046] [2024-10-14 04:22:57,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845778046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:22:57,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:22:57,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:22:57,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917660428] [2024-10-14 04:22:57,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:22:57,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:22:57,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:22:57,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:22:57,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:22:57,936 INFO L87 Difference]: Start difference. First operand 2548 states and 4645 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:22:59,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:22:59,869 INFO L93 Difference]: Finished difference Result 3616 states and 6396 transitions. [2024-10-14 04:22:59,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:22:59,869 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:22:59,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:22:59,885 INFO L225 Difference]: With dead ends: 3616 [2024-10-14 04:22:59,885 INFO L226 Difference]: Without dead ends: 3203 [2024-10-14 04:22:59,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:22:59,890 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 4782 mSDsluCounter, 16764 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 20989 SdHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:22:59,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 20989 Invalid, 2050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:22:59,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-10-14 04:22:59,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 2936. [2024-10-14 04:22:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.8022559041240747) internal successors, (5113), 2844 states have internal predecessors, (5113), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-14 04:22:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5266 transitions. [2024-10-14 04:22:59,995 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5266 transitions. Word has length 102 [2024-10-14 04:22:59,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:22:59,997 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 5266 transitions. [2024-10-14 04:22:59,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:22:59,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5266 transitions. [2024-10-14 04:23:00,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:23:00,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:00,000 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] [2024-10-14 04:23:00,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 04:23:00,001 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:00,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:00,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1753431081, now seen corresponding path program 1 times [2024-10-14 04:23:00,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:00,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960381385] [2024-10-14 04:23:00,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:00,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:00,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:00,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:23:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:00,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:23:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:00,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:23:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:00,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:23:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:00,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:00,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:00,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960381385] [2024-10-14 04:23:00,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960381385] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:00,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:00,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176049016] [2024-10-14 04:23:00,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:00,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:00,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:00,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:00,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:00,203 INFO L87 Difference]: Start difference. First operand 2936 states and 5266 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:01,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:01,235 INFO L93 Difference]: Finished difference Result 4009 states and 7040 transitions. [2024-10-14 04:23:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:23:01,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:23:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:01,250 INFO L225 Difference]: With dead ends: 4009 [2024-10-14 04:23:01,251 INFO L226 Difference]: Without dead ends: 3206 [2024-10-14 04:23:01,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:23:01,256 INFO L432 NwaCegarLoop]: 4118 mSDtfsCounter, 4659 mSDsluCounter, 12253 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4673 SdHoareTripleChecker+Valid, 16371 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:01,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4673 Valid, 16371 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 04:23:01,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2024-10-14 04:23:01,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 2936. [2024-10-14 04:23:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.8004934790271414) internal successors, (5108), 2844 states have internal predecessors, (5108), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-14 04:23:01,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5261 transitions. [2024-10-14 04:23:01,391 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5261 transitions. Word has length 102 [2024-10-14 04:23:01,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:01,391 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 5261 transitions. [2024-10-14 04:23:01,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:01,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5261 transitions. [2024-10-14 04:23:01,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:23:01,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:01,395 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] [2024-10-14 04:23:01,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 04:23:01,396 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:01,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:01,397 INFO L85 PathProgramCache]: Analyzing trace with hash 662405269, now seen corresponding path program 1 times [2024-10-14 04:23:01,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:01,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784403197] [2024-10-14 04:23:01,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:01,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:01,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:01,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:23:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:01,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:23:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:01,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:23:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:01,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:23:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:01,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:01,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:01,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784403197] [2024-10-14 04:23:01,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784403197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:01,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:01,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:01,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235832420] [2024-10-14 04:23:01,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:01,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:01,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:01,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:01,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:01,607 INFO L87 Difference]: Start difference. First operand 2936 states and 5261 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:02,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:02,706 INFO L93 Difference]: Finished difference Result 4005 states and 7019 transitions. [2024-10-14 04:23:02,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:23:02,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:23:02,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:02,721 INFO L225 Difference]: With dead ends: 4005 [2024-10-14 04:23:02,721 INFO L226 Difference]: Without dead ends: 3202 [2024-10-14 04:23:02,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:23:02,727 INFO L432 NwaCegarLoop]: 4118 mSDtfsCounter, 4571 mSDsluCounter, 16316 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4585 SdHoareTripleChecker+Valid, 20434 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:02,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4585 Valid, 20434 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 04:23:02,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2024-10-14 04:23:02,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 2936. [2024-10-14 04:23:02,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.798731053930208) internal successors, (5103), 2844 states have internal predecessors, (5103), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-14 04:23:02,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5256 transitions. [2024-10-14 04:23:02,864 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5256 transitions. Word has length 102 [2024-10-14 04:23:02,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:02,865 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 5256 transitions. [2024-10-14 04:23:02,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:02,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5256 transitions. [2024-10-14 04:23:02,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:23:02,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:02,868 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] [2024-10-14 04:23:02,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 04:23:02,868 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:02,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:02,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1987261463, now seen corresponding path program 1 times [2024-10-14 04:23:02,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:02,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313195035] [2024-10-14 04:23:02,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:02,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:02,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:02,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:23:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:03,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:23:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:03,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:23:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:03,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:23:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:03,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:03,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:03,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313195035] [2024-10-14 04:23:03,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313195035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:03,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:03,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:03,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107532775] [2024-10-14 04:23:03,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:03,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:03,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:03,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:03,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:03,070 INFO L87 Difference]: Start difference. First operand 2936 states and 5256 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:04,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:04,097 INFO L93 Difference]: Finished difference Result 4000 states and 6996 transitions. [2024-10-14 04:23:04,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 04:23:04,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:23:04,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:04,111 INFO L225 Difference]: With dead ends: 4000 [2024-10-14 04:23:04,111 INFO L226 Difference]: Without dead ends: 3197 [2024-10-14 04:23:04,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-14 04:23:04,117 INFO L432 NwaCegarLoop]: 4118 mSDtfsCounter, 4569 mSDsluCounter, 16316 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4583 SdHoareTripleChecker+Valid, 20434 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:04,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4583 Valid, 20434 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 04:23:04,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-10-14 04:23:04,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2936. [2024-10-14 04:23:04,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.7969686288332747) internal successors, (5098), 2844 states have internal predecessors, (5098), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-14 04:23:04,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5251 transitions. [2024-10-14 04:23:04,257 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5251 transitions. Word has length 102 [2024-10-14 04:23:04,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:04,258 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 5251 transitions. [2024-10-14 04:23:04,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:04,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5251 transitions. [2024-10-14 04:23:04,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:23:04,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:04,261 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] [2024-10-14 04:23:04,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 04:23:04,261 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:04,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:04,262 INFO L85 PathProgramCache]: Analyzing trace with hash -740947883, now seen corresponding path program 1 times [2024-10-14 04:23:04,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:04,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680330048] [2024-10-14 04:23:04,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:04,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:04,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:04,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:23:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:04,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:23:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:04,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:23:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:04,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:23:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:04,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:04,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:04,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680330048] [2024-10-14 04:23:04,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680330048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:04,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:04,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:04,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057964969] [2024-10-14 04:23:04,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:04,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:04,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:04,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:04,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:04,472 INFO L87 Difference]: Start difference. First operand 2936 states and 5251 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:06,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:06,513 INFO L93 Difference]: Finished difference Result 4993 states and 8567 transitions. [2024-10-14 04:23:06,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 04:23:06,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:23:06,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:06,532 INFO L225 Difference]: With dead ends: 4993 [2024-10-14 04:23:06,532 INFO L226 Difference]: Without dead ends: 4192 [2024-10-14 04:23:06,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-14 04:23:06,537 INFO L432 NwaCegarLoop]: 4259 mSDtfsCounter, 4748 mSDsluCounter, 16816 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 21075 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:06,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4761 Valid, 21075 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 04:23:06,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2024-10-14 04:23:06,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 3723. [2024-10-14 04:23:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 3536 states have (on average 1.7531108597285068) internal successors, (6199), 3547 states have internal predecessors, (6199), 129 states have call successors, (129), 49 states have call predecessors, (129), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2024-10-14 04:23:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 6498 transitions. [2024-10-14 04:23:06,681 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 6498 transitions. Word has length 102 [2024-10-14 04:23:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:06,682 INFO L471 AbstractCegarLoop]: Abstraction has 3723 states and 6498 transitions. [2024-10-14 04:23:06,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:06,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 6498 transitions. [2024-10-14 04:23:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:23:06,686 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:06,687 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] [2024-10-14 04:23:06,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 04:23:06,687 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:06,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:06,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1798785961, now seen corresponding path program 1 times [2024-10-14 04:23:06,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:06,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359156754] [2024-10-14 04:23:06,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:06,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:06,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:06,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:23:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:06,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:23:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:06,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:23:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:06,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:23:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:06,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:06,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:06,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359156754] [2024-10-14 04:23:06,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359156754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:06,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:06,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:06,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228928313] [2024-10-14 04:23:06,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:06,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:06,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:06,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:06,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:06,855 INFO L87 Difference]: Start difference. First operand 3723 states and 6498 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:08,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:08,936 INFO L93 Difference]: Finished difference Result 8412 states and 14052 transitions. [2024-10-14 04:23:08,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:23:08,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:23:08,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:08,980 INFO L225 Difference]: With dead ends: 8412 [2024-10-14 04:23:08,980 INFO L226 Difference]: Without dead ends: 6824 [2024-10-14 04:23:08,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:23:08,992 INFO L432 NwaCegarLoop]: 4257 mSDtfsCounter, 4978 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4998 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:08,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4998 Valid, 21068 Invalid, 2127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 2064 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:23:09,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6824 states. [2024-10-14 04:23:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6824 to 5288. [2024-10-14 04:23:09,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 4933 states have (on average 1.7034259071558888) internal successors, (8403), 4952 states have internal predecessors, (8403), 241 states have call successors, (241), 97 states have call predecessors, (241), 112 states have return successors, (352), 254 states have call predecessors, (352), 239 states have call successors, (352) [2024-10-14 04:23:09,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 8996 transitions. [2024-10-14 04:23:09,444 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 8996 transitions. Word has length 102 [2024-10-14 04:23:09,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:09,444 INFO L471 AbstractCegarLoop]: Abstraction has 5288 states and 8996 transitions. [2024-10-14 04:23:09,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:09,444 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 8996 transitions. [2024-10-14 04:23:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:23:09,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:09,453 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] [2024-10-14 04:23:09,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 04:23:09,454 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:09,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:09,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1353678869, now seen corresponding path program 1 times [2024-10-14 04:23:09,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:09,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784536127] [2024-10-14 04:23:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:09,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:09,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:09,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:23:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:09,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:23:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:09,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:23:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:09,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:23:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:09,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:09,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784536127] [2024-10-14 04:23:09,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784536127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:09,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:09,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:09,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495330552] [2024-10-14 04:23:09,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:09,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:09,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:09,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:09,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:09,636 INFO L87 Difference]: Start difference. First operand 5288 states and 8996 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:11,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:11,559 INFO L93 Difference]: Finished difference Result 14195 states and 23402 transitions. [2024-10-14 04:23:11,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:23:11,559 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:23:11,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:11,601 INFO L225 Difference]: With dead ends: 14195 [2024-10-14 04:23:11,601 INFO L226 Difference]: Without dead ends: 11042 [2024-10-14 04:23:11,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:23:11,618 INFO L432 NwaCegarLoop]: 4257 mSDtfsCounter, 4921 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:11,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4941 Valid, 21068 Invalid, 2072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 04:23:11,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2024-10-14 04:23:12,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8433. [2024-10-14 04:23:12,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8433 states, 7750 states have (on average 1.6589677419354838) internal successors, (12857), 7785 states have internal predecessors, (12857), 457 states have call successors, (457), 193 states have call predecessors, (457), 224 states have return successors, (762), 486 states have call predecessors, (762), 455 states have call successors, (762) [2024-10-14 04:23:12,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8433 states to 8433 states and 14076 transitions. [2024-10-14 04:23:12,210 INFO L78 Accepts]: Start accepts. Automaton has 8433 states and 14076 transitions. Word has length 102 [2024-10-14 04:23:12,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:12,211 INFO L471 AbstractCegarLoop]: Abstraction has 8433 states and 14076 transitions. [2024-10-14 04:23:12,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:12,211 INFO L276 IsEmpty]: Start isEmpty. Operand 8433 states and 14076 transitions. [2024-10-14 04:23:12,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:23:12,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:12,217 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] [2024-10-14 04:23:12,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 04:23:12,218 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:12,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:12,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2102254765, now seen corresponding path program 1 times [2024-10-14 04:23:12,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:12,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026545903] [2024-10-14 04:23:12,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:12,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:12,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:12,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:23:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:12,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:23:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:12,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:23:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:12,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:23:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:12,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:12,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:12,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026545903] [2024-10-14 04:23:12,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026545903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:12,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:12,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:12,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396004084] [2024-10-14 04:23:12,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:12,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:12,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:12,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:12,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:12,374 INFO L87 Difference]: Start difference. First operand 8433 states and 14076 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:14,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:14,884 INFO L93 Difference]: Finished difference Result 25710 states and 42196 transitions. [2024-10-14 04:23:14,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:23:14,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:23:14,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:14,966 INFO L225 Difference]: With dead ends: 25710 [2024-10-14 04:23:14,967 INFO L226 Difference]: Without dead ends: 19412 [2024-10-14 04:23:14,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:23:14,996 INFO L432 NwaCegarLoop]: 4226 mSDtfsCounter, 4898 mSDsluCounter, 16762 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 20988 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:14,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4918 Valid, 20988 Invalid, 1943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 04:23:15,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19412 states. [2024-10-14 04:23:16,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19412 to 14723. [2024-10-14 04:23:16,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14723 states, 13400 states have (on average 1.6266417910447761) internal successors, (21797), 13467 states have internal predecessors, (21797), 873 states have call successors, (873), 385 states have call predecessors, (873), 448 states have return successors, (1728), 934 states have call predecessors, (1728), 871 states have call successors, (1728) [2024-10-14 04:23:16,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14723 states to 14723 states and 24398 transitions. [2024-10-14 04:23:16,196 INFO L78 Accepts]: Start accepts. Automaton has 14723 states and 24398 transitions. Word has length 102 [2024-10-14 04:23:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:16,197 INFO L471 AbstractCegarLoop]: Abstraction has 14723 states and 24398 transitions. [2024-10-14 04:23:16,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:16,197 INFO L276 IsEmpty]: Start isEmpty. Operand 14723 states and 24398 transitions. [2024-10-14 04:23:16,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:23:16,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:16,209 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] [2024-10-14 04:23:16,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 04:23:16,209 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:16,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:16,210 INFO L85 PathProgramCache]: Analyzing trace with hash -2075189163, now seen corresponding path program 1 times [2024-10-14 04:23:16,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:16,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033179309] [2024-10-14 04:23:16,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:16,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:16,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:16,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:23:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:16,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:23:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:16,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:23:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:16,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:23:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:16,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:16,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:16,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033179309] [2024-10-14 04:23:16,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033179309] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:16,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:16,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:16,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820186549] [2024-10-14 04:23:16,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:16,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:16,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:16,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:16,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:16,350 INFO L87 Difference]: Start difference. First operand 14723 states and 24398 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:19,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:19,784 INFO L93 Difference]: Finished difference Result 48260 states and 79600 transitions. [2024-10-14 04:23:19,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:23:19,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:23:19,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:19,923 INFO L225 Difference]: With dead ends: 48260 [2024-10-14 04:23:19,923 INFO L226 Difference]: Without dead ends: 35672 [2024-10-14 04:23:20,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:23:20,179 INFO L432 NwaCegarLoop]: 4258 mSDtfsCounter, 4789 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 21069 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:20,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4801 Valid, 21069 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 04:23:20,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35672 states. [2024-10-14 04:23:21,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35672 to 27303. [2024-10-14 04:23:21,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27303 states, 24732 states have (on average 1.6068655992236778) internal successors, (39741), 24863 states have internal predecessors, (39741), 1673 states have call successors, (1673), 769 states have call predecessors, (1673), 896 states have return successors, (4114), 1798 states have call predecessors, (4114), 1671 states have call successors, (4114) [2024-10-14 04:23:21,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27303 states to 27303 states and 45528 transitions. [2024-10-14 04:23:21,667 INFO L78 Accepts]: Start accepts. Automaton has 27303 states and 45528 transitions. Word has length 102 [2024-10-14 04:23:21,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:21,668 INFO L471 AbstractCegarLoop]: Abstraction has 27303 states and 45528 transitions. [2024-10-14 04:23:21,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:21,668 INFO L276 IsEmpty]: Start isEmpty. Operand 27303 states and 45528 transitions. [2024-10-14 04:23:21,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:23:21,689 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:21,690 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] [2024-10-14 04:23:21,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 04:23:21,690 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:21,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:21,690 INFO L85 PathProgramCache]: Analyzing trace with hash 142441235, now seen corresponding path program 1 times [2024-10-14 04:23:21,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:21,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868035274] [2024-10-14 04:23:21,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:21,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:21,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:21,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:23:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:21,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:23:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:21,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:23:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:21,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:23:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:21,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:21,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868035274] [2024-10-14 04:23:21,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868035274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:21,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:21,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:21,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804722933] [2024-10-14 04:23:21,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:21,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:21,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:21,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:21,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:21,836 INFO L87 Difference]: Start difference. First operand 27303 states and 45528 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:26,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:26,907 INFO L93 Difference]: Finished difference Result 92400 states and 154688 transitions. [2024-10-14 04:23:26,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:23:26,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:23:26,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:27,175 INFO L225 Difference]: With dead ends: 92400 [2024-10-14 04:23:27,176 INFO L226 Difference]: Without dead ends: 67232 [2024-10-14 04:23:27,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:23:27,263 INFO L432 NwaCegarLoop]: 4259 mSDtfsCounter, 4819 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4839 SdHoareTripleChecker+Valid, 21070 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:27,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4839 Valid, 21070 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 04:23:27,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67232 states. [2024-10-14 04:23:30,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67232 to 52463. [2024-10-14 04:23:30,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52463 states, 47460 states have (on average 1.596228402865571) internal successors, (75757), 47719 states have internal predecessors, (75757), 3209 states have call successors, (3209), 1537 states have call predecessors, (3209), 1792 states have return successors, (10280), 3462 states have call predecessors, (10280), 3207 states have call successors, (10280) [2024-10-14 04:23:30,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52463 states to 52463 states and 89246 transitions. [2024-10-14 04:23:30,931 INFO L78 Accepts]: Start accepts. Automaton has 52463 states and 89246 transitions. Word has length 102 [2024-10-14 04:23:30,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 04:23:30,932 INFO L471 AbstractCegarLoop]: Abstraction has 52463 states and 89246 transitions. [2024-10-14 04:23:30,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 52463 states and 89246 transitions. [2024-10-14 04:23:31,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 04:23:31,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 04:23:31,309 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] [2024-10-14 04:23:31,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 04:23:31,310 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 04:23:31,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 04:23:31,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1876545685, now seen corresponding path program 1 times [2024-10-14 04:23:31,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 04:23:31,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750093280] [2024-10-14 04:23:31,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 04:23:31,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 04:23:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:31,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 04:23:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:31,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 04:23:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:31,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 04:23:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:31,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 04:23:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:31,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 04:23:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 04:23:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 04:23:31,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 04:23:31,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750093280] [2024-10-14 04:23:31,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750093280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 04:23:31,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 04:23:31,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 04:23:31,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389189472] [2024-10-14 04:23:31,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 04:23:31,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 04:23:31,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 04:23:31,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 04:23:31,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 04:23:31,490 INFO L87 Difference]: Start difference. First operand 52463 states and 89246 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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) [2024-10-14 04:23:40,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 04:23:40,507 INFO L93 Difference]: Finished difference Result 178760 states and 307368 transitions. [2024-10-14 04:23:40,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 04:23:40,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (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 102 [2024-10-14 04:23:40,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 04:23:41,091 INFO L225 Difference]: With dead ends: 178760 [2024-10-14 04:23:41,091 INFO L226 Difference]: Without dead ends: 128432 [2024-10-14 04:23:41,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 04:23:41,233 INFO L432 NwaCegarLoop]: 4257 mSDtfsCounter, 4770 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4782 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 04:23:41,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4782 Valid, 21068 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 04:23:41,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128432 states.