./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.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 75bb47d196b7c0cfa74650bf56de75ff6699dc5c2700eb5e9ba9836562c6aee4 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 23:22:52,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 23:22:52,712 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 23:22:52,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 23:22:52,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 23:22:52,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 23:22:52,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 23:22:52,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 23:22:52,744 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 23:22:52,745 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 23:22:52,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 23:22:52,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 23:22:52,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 23:22:52,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 23:22:52,748 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 23:22:52,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 23:22:52,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 23:22:52,749 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 23:22:52,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 23:22:52,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 23:22:52,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 23:22:52,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 23:22:52,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 23:22:52,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 23:22:52,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 23:22:52,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 23:22:52,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 23:22:52,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 23:22:52,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 23:22:52,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 23:22:52,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 23:22:52,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 23:22:52,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:22:52,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 23:22:52,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 23:22:52,754 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 23:22:52,754 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 23:22:52,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 23:22:52,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 23:22:52,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 23:22:52,755 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 23:22:52,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 23:22:52,757 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75bb47d196b7c0cfa74650bf56de75ff6699dc5c2700eb5e9ba9836562c6aee4 [2024-11-19 23:22:52,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 23:22:52,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 23:22:52,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 23:22:52,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 23:22:52,988 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 23:22:52,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c [2024-11-19 23:22:54,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 23:22:54,838 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 23:22:54,839 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c [2024-11-19 23:22:54,877 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ab85640c/513dbac81cab494e8dd4ca449545a9c1/FLAG3b006ca78 [2024-11-19 23:22:55,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ab85640c/513dbac81cab494e8dd4ca449545a9c1 [2024-11-19 23:22:55,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 23:22:55,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 23:22:55,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 23:22:55,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 23:22:55,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 23:22:55,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:22:55" (1/1) ... [2024-11-19 23:22:55,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ffdbcdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:55, skipping insertion in model container [2024-11-19 23:22:55,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:22:55" (1/1) ... [2024-11-19 23:22:55,479 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 23:22:56,687 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c[381679,381692] [2024-11-19 23:22:56,710 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c[383339,383352] [2024-11-19 23:22:56,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:22:56,886 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 23:22:57,458 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c[381679,381692] [2024-11-19 23:22:57,462 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.12.cil-1.c[383339,383352] [2024-11-19 23:22:57,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:22:57,572 INFO L204 MainTranslator]: Completed translation [2024-11-19 23:22:57,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57 WrapperNode [2024-11-19 23:22:57,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 23:22:57,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 23:22:57,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 23:22:57,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 23:22:57,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:57,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:57,880 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13239 [2024-11-19 23:22:57,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 23:22:57,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 23:22:57,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 23:22:57,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 23:22:57,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:57,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:57,990 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:58,135 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 23:22:58,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:58,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:58,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:58,333 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:58,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:58,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:58,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 23:22:58,505 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 23:22:58,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 23:22:58,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 23:22:58,510 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (1/1) ... [2024-11-19 23:22:58,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:22:58,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:22:58,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 23:22:58,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 23:22:58,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 23:22:58,594 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-19 23:22:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-19 23:22:58,594 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-19 23:22:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-19 23:22:58,596 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-19 23:22:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-19 23:22:58,596 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-19 23:22:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-19 23:22:58,596 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-19 23:22:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-19 23:22:58,596 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-19 23:22:58,596 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-19 23:22:58,596 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-19 23:22:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-19 23:22:58,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 23:22:58,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 23:22:58,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 23:22:58,700 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 23:22:58,701 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 23:23:05,194 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2024-11-19 23:23:05,194 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 23:23:05,233 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 23:23:05,234 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-19 23:23:05,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:23:05 BoogieIcfgContainer [2024-11-19 23:23:05,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 23:23:05,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 23:23:05,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 23:23:05,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 23:23:05,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:22:55" (1/3) ... [2024-11-19 23:23:05,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68249e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:23:05, skipping insertion in model container [2024-11-19 23:23:05,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:22:57" (2/3) ... [2024-11-19 23:23:05,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68249e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:23:05, skipping insertion in model container [2024-11-19 23:23:05,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:23:05" (3/3) ... [2024-11-19 23:23:05,242 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.12.cil-1.c [2024-11-19 23:23:05,255 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 23:23:05,255 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 23:23:05,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 23:23:05,355 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;@36e24544, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 23:23:05,355 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 23:23:05,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 2586 states, 2548 states have (on average 1.8390894819466248) internal successors, (4686), 2553 states have internal predecessors, (4686), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-19 23:23:05,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:05,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:05,394 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:05,394 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:05,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:05,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1115616810, now seen corresponding path program 1 times [2024-11-19 23:23:05,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:05,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561864597] [2024-11-19 23:23:05,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:05,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:05,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:05,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:06,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:06,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:06,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:06,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:06,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561864597] [2024-11-19 23:23:06,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561864597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:06,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:06,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 23:23:06,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619407139] [2024-11-19 23:23:06,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:06,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 23:23:06,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:06,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 23:23:06,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:23:06,150 INFO L87 Difference]: Start difference. First operand has 2586 states, 2548 states have (on average 1.8390894819466248) internal successors, (4686), 2553 states have internal predecessors, (4686), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-19 23:23:08,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:08,082 INFO L93 Difference]: Finished difference Result 5307 states and 9718 transitions. [2024-11-19 23:23:08,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 23:23:08,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:08,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:08,106 INFO L225 Difference]: With dead ends: 5307 [2024-11-19 23:23:08,106 INFO L226 Difference]: Without dead ends: 2660 [2024-11-19 23:23:08,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:23:08,116 INFO L432 NwaCegarLoop]: 4394 mSDtfsCounter, 1065 mSDsluCounter, 12509 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 16903 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:08,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 16903 Invalid, 1097 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 23:23:08,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2024-11-19 23:23:08,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 2518. [2024-11-19 23:23:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2482 states have (on average 1.82232070910556) internal successors, (4523), 2485 states have internal predecessors, (4523), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 23:23:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 4577 transitions. [2024-11-19 23:23:08,310 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 4577 transitions. Word has length 179 [2024-11-19 23:23:08,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:08,314 INFO L471 AbstractCegarLoop]: Abstraction has 2518 states and 4577 transitions. [2024-11-19 23:23:08,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-19 23:23:08,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 4577 transitions. [2024-11-19 23:23:08,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:08,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:08,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:08,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 23:23:08,319 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:08,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:08,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1676252180, now seen corresponding path program 1 times [2024-11-19 23:23:08,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:08,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145562775] [2024-11-19 23:23:08,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:08,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:08,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:08,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:08,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:08,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:08,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:08,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:08,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:08,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145562775] [2024-11-19 23:23:08,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145562775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:08,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:08,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 23:23:08,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863637868] [2024-11-19 23:23:08,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:08,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 23:23:08,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:08,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 23:23:08,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:23:08,535 INFO L87 Difference]: Start difference. First operand 2518 states and 4577 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-19 23:23:10,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:10,080 INFO L93 Difference]: Finished difference Result 3042 states and 5416 transitions. [2024-11-19 23:23:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 23:23:10,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:10,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:10,090 INFO L225 Difference]: With dead ends: 3042 [2024-11-19 23:23:10,090 INFO L226 Difference]: Without dead ends: 2660 [2024-11-19 23:23:10,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:23:10,092 INFO L432 NwaCegarLoop]: 4324 mSDtfsCounter, 1051 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 16630 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:10,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 16630 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 23:23:10,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2024-11-19 23:23:10,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 2518. [2024-11-19 23:23:10,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2482 states have (on average 1.821917808219178) internal successors, (4522), 2485 states have internal predecessors, (4522), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 23:23:10,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 4576 transitions. [2024-11-19 23:23:10,137 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 4576 transitions. Word has length 179 [2024-11-19 23:23:10,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:10,138 INFO L471 AbstractCegarLoop]: Abstraction has 2518 states and 4576 transitions. [2024-11-19 23:23:10,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-11-19 23:23:10,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 4576 transitions. [2024-11-19 23:23:10,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:10,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:10,141 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:10,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 23:23:10,142 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:10,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:10,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2048443310, now seen corresponding path program 1 times [2024-11-19 23:23:10,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:10,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638698633] [2024-11-19 23:23:10,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:10,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:10,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:10,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:10,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:10,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:10,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:10,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:10,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638698633] [2024-11-19 23:23:10,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638698633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:10,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:10,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:23:10,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254206774] [2024-11-19 23:23:10,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:10,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:23:10,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:10,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:23:10,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:23:10,543 INFO L87 Difference]: Start difference. First operand 2518 states and 4576 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2024-11-19 23:23:13,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:13,190 INFO L93 Difference]: Finished difference Result 3574 states and 6273 transitions. [2024-11-19 23:23:13,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 23:23:13,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:13,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:13,199 INFO L225 Difference]: With dead ends: 3574 [2024-11-19 23:23:13,200 INFO L226 Difference]: Without dead ends: 3197 [2024-11-19 23:23:13,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:23:13,202 INFO L432 NwaCegarLoop]: 4345 mSDtfsCounter, 5546 mSDsluCounter, 13009 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5565 SdHoareTripleChecker+Valid, 17354 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:13,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5565 Valid, 17354 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 23:23:13,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-11-19 23:23:13,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2912. [2024-11-19 23:23:13,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2912 states, 2848 states have (on average 1.7910814606741574) internal successors, (5101), 2852 states have internal predecessors, (5101), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-19 23:23:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2912 states to 2912 states and 5200 transitions. [2024-11-19 23:23:13,259 INFO L78 Accepts]: Start accepts. Automaton has 2912 states and 5200 transitions. Word has length 179 [2024-11-19 23:23:13,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:13,259 INFO L471 AbstractCegarLoop]: Abstraction has 2912 states and 5200 transitions. [2024-11-19 23:23:13,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 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) [2024-11-19 23:23:13,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2912 states and 5200 transitions. [2024-11-19 23:23:13,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:13,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:13,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:13,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 23:23:13,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:13,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:13,262 INFO L85 PathProgramCache]: Analyzing trace with hash 662703530, now seen corresponding path program 1 times [2024-11-19 23:23:13,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:13,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794832071] [2024-11-19 23:23:13,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:13,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:13,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:13,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:13,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:13,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:13,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:13,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:13,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:13,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794832071] [2024-11-19 23:23:13,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794832071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:13,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:13,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:23:13,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762279593] [2024-11-19 23:23:13,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:13,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:23:13,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:13,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:23:13,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:23:13,519 INFO L87 Difference]: Start difference. First operand 2912 states and 5200 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:16,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:16,811 INFO L93 Difference]: Finished difference Result 4523 states and 7793 transitions. [2024-11-19 23:23:16,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:23:16,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:16,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:16,823 INFO L225 Difference]: With dead ends: 4523 [2024-11-19 23:23:16,823 INFO L226 Difference]: Without dead ends: 3752 [2024-11-19 23:23:16,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:23:16,826 INFO L432 NwaCegarLoop]: 4556 mSDtfsCounter, 5579 mSDsluCounter, 17901 mSDsCounter, 0 mSdLazyCounter, 3597 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5598 SdHoareTripleChecker+Valid, 22457 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:16,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5598 Valid, 22457 Invalid, 3662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3597 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-19 23:23:16,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2024-11-19 23:23:16,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3279. [2024-11-19 23:23:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 3187 states have (on average 1.7652965171007218) internal successors, (5626), 3192 states have internal predecessors, (5626), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-19 23:23:16,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 5769 transitions. [2024-11-19 23:23:16,901 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 5769 transitions. Word has length 179 [2024-11-19 23:23:16,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:16,902 INFO L471 AbstractCegarLoop]: Abstraction has 3279 states and 5769 transitions. [2024-11-19 23:23:16,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:16,902 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 5769 transitions. [2024-11-19 23:23:16,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:16,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:16,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:16,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 23:23:16,904 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:16,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:16,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1106768084, now seen corresponding path program 1 times [2024-11-19 23:23:16,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:16,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786169713] [2024-11-19 23:23:16,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:16,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:16,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:17,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:17,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:17,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:17,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:17,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:17,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786169713] [2024-11-19 23:23:17,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786169713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:17,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:17,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:23:17,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609916006] [2024-11-19 23:23:17,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:17,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:23:17,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:17,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:23:17,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:23:17,146 INFO L87 Difference]: Start difference. First operand 3279 states and 5769 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:20,491 INFO L93 Difference]: Finished difference Result 5923 states and 10016 transitions. [2024-11-19 23:23:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:23:20,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:20,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:20,512 INFO L225 Difference]: With dead ends: 5923 [2024-11-19 23:23:20,512 INFO L226 Difference]: Without dead ends: 4785 [2024-11-19 23:23:20,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:23:20,520 INFO L432 NwaCegarLoop]: 4304 mSDtfsCounter, 5693 mSDsluCounter, 17175 mSDsCounter, 0 mSdLazyCounter, 3058 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5712 SdHoareTripleChecker+Valid, 21479 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:20,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5712 Valid, 21479 Invalid, 3165 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 3058 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-19 23:23:20,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2024-11-19 23:23:20,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4014. [2024-11-19 23:23:20,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4014 states, 3866 states have (on average 1.7271081220900155) internal successors, (6677), 3873 states have internal predecessors, (6677), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-19 23:23:20,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4014 states to 4014 states and 6912 transitions. [2024-11-19 23:23:20,761 INFO L78 Accepts]: Start accepts. Automaton has 4014 states and 6912 transitions. Word has length 179 [2024-11-19 23:23:20,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:20,762 INFO L471 AbstractCegarLoop]: Abstraction has 4014 states and 6912 transitions. [2024-11-19 23:23:20,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:20,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4014 states and 6912 transitions. [2024-11-19 23:23:20,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:20,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:20,766 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:20,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 23:23:20,766 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:20,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:20,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1718037142, now seen corresponding path program 1 times [2024-11-19 23:23:20,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:20,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237468131] [2024-11-19 23:23:20,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:20,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:20,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:20,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:21,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:21,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:21,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:21,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:21,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:21,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237468131] [2024-11-19 23:23:21,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237468131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:21,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:21,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:23:21,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741167472] [2024-11-19 23:23:21,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:21,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:23:21,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:21,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:23:21,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:23:21,048 INFO L87 Difference]: Start difference. First operand 4014 states and 6912 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:24,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:24,393 INFO L93 Difference]: Finished difference Result 8618 states and 14267 transitions. [2024-11-19 23:23:24,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:23:24,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:24,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:24,416 INFO L225 Difference]: With dead ends: 8618 [2024-11-19 23:23:24,416 INFO L226 Difference]: Without dead ends: 6745 [2024-11-19 23:23:24,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:23:24,422 INFO L432 NwaCegarLoop]: 4554 mSDtfsCounter, 5577 mSDsluCounter, 17901 mSDsCounter, 0 mSdLazyCounter, 3586 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5596 SdHoareTripleChecker+Valid, 22455 SdHoareTripleChecker+Invalid, 3653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:24,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5596 Valid, 22455 Invalid, 3653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3586 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-19 23:23:24,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6745 states. [2024-11-19 23:23:24,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 5485. [2024-11-19 23:23:24,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5485 states, 5225 states have (on average 1.6801913875598087) internal successors, (8779), 5236 states have internal predecessors, (8779), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-19 23:23:24,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5485 states to 5485 states and 9204 transitions. [2024-11-19 23:23:24,803 INFO L78 Accepts]: Start accepts. Automaton has 5485 states and 9204 transitions. Word has length 179 [2024-11-19 23:23:24,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:24,803 INFO L471 AbstractCegarLoop]: Abstraction has 5485 states and 9204 transitions. [2024-11-19 23:23:24,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:24,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5485 states and 9204 transitions. [2024-11-19 23:23:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:24,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:24,806 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:24,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 23:23:24,806 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:24,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1171738476, now seen corresponding path program 1 times [2024-11-19 23:23:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:24,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229470749] [2024-11-19 23:23:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:24,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:24,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:24,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:25,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:25,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:25,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:25,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:25,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:25,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229470749] [2024-11-19 23:23:25,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229470749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:25,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:25,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:23:25,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789095819] [2024-11-19 23:23:25,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:25,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:23:25,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:25,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:23:25,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:23:25,037 INFO L87 Difference]: Start difference. First operand 5485 states and 9204 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:28,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:28,459 INFO L93 Difference]: Finished difference Result 14000 states and 22773 transitions. [2024-11-19 23:23:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:23:28,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:28,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:28,491 INFO L225 Difference]: With dead ends: 14000 [2024-11-19 23:23:28,495 INFO L226 Difference]: Without dead ends: 10656 [2024-11-19 23:23:28,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:23:28,504 INFO L432 NwaCegarLoop]: 4554 mSDtfsCounter, 5573 mSDsluCounter, 17901 mSDsCounter, 0 mSdLazyCounter, 3558 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5592 SdHoareTripleChecker+Valid, 22455 SdHoareTripleChecker+Invalid, 3625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:28,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5592 Valid, 22455 Invalid, 3625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3558 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-19 23:23:28,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10656 states. [2024-11-19 23:23:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10656 to 8441. [2024-11-19 23:23:28,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8441 states, 7957 states have (on average 1.6346613045117506) internal successors, (13007), 7976 states have internal predecessors, (13007), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-19 23:23:28,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8441 states to 8441 states and 13830 transitions. [2024-11-19 23:23:28,762 INFO L78 Accepts]: Start accepts. Automaton has 8441 states and 13830 transitions. Word has length 179 [2024-11-19 23:23:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:28,763 INFO L471 AbstractCegarLoop]: Abstraction has 8441 states and 13830 transitions. [2024-11-19 23:23:28,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:28,763 INFO L276 IsEmpty]: Start isEmpty. Operand 8441 states and 13830 transitions. [2024-11-19 23:23:28,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:28,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:28,767 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:28,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 23:23:28,767 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:28,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:28,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1676647954, now seen corresponding path program 1 times [2024-11-19 23:23:28,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:28,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851926528] [2024-11-19 23:23:28,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:28,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:28,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:28,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:28,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:28,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:28,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:28,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:28,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851926528] [2024-11-19 23:23:28,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851926528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:28,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:28,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:23:28,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106431561] [2024-11-19 23:23:28,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:28,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:23:28,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:28,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:23:28,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:23:28,972 INFO L87 Difference]: Start difference. First operand 8441 states and 13830 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:32,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:32,538 INFO L93 Difference]: Finished difference Result 24782 states and 39877 transitions. [2024-11-19 23:23:32,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:23:32,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:32,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:32,584 INFO L225 Difference]: With dead ends: 24782 [2024-11-19 23:23:32,584 INFO L226 Difference]: Without dead ends: 18482 [2024-11-19 23:23:32,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:23:32,607 INFO L432 NwaCegarLoop]: 4554 mSDtfsCounter, 5572 mSDsluCounter, 17901 mSDsCounter, 0 mSdLazyCounter, 3545 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5591 SdHoareTripleChecker+Valid, 22455 SdHoareTripleChecker+Invalid, 3612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:32,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5591 Valid, 22455 Invalid, 3612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3545 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-19 23:23:32,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18482 states. [2024-11-19 23:23:33,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18482 to 14366. [2024-11-19 23:23:33,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14366 states, 13434 states have (on average 1.5990025308917672) internal successors, (21481), 13469 states have internal predecessors, (21481), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-19 23:23:33,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14366 states to 14366 states and 23154 transitions. [2024-11-19 23:23:33,174 INFO L78 Accepts]: Start accepts. Automaton has 14366 states and 23154 transitions. Word has length 179 [2024-11-19 23:23:33,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:33,175 INFO L471 AbstractCegarLoop]: Abstraction has 14366 states and 23154 transitions. [2024-11-19 23:23:33,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:33,175 INFO L276 IsEmpty]: Start isEmpty. Operand 14366 states and 23154 transitions. [2024-11-19 23:23:33,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:33,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:33,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:33,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 23:23:33,181 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:33,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:33,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1695151916, now seen corresponding path program 1 times [2024-11-19 23:23:33,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:33,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247484643] [2024-11-19 23:23:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:33,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:33,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:33,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:33,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:33,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:33,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:33,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:33,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:33,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247484643] [2024-11-19 23:23:33,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247484643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:33,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:33,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:23:33,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623220093] [2024-11-19 23:23:33,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:33,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:23:33,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:33,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:23:33,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:23:33,401 INFO L87 Difference]: Start difference. First operand 14366 states and 23154 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:35,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:35,551 INFO L93 Difference]: Finished difference Result 30958 states and 49908 transitions. [2024-11-19 23:23:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 23:23:35,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:35,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:35,610 INFO L225 Difference]: With dead ends: 30958 [2024-11-19 23:23:35,610 INFO L226 Difference]: Without dead ends: 18733 [2024-11-19 23:23:35,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:23:35,681 INFO L432 NwaCegarLoop]: 4279 mSDtfsCounter, 5292 mSDsluCounter, 12675 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5312 SdHoareTripleChecker+Valid, 16954 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:35,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5312 Valid, 16954 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 23:23:35,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18733 states. [2024-11-19 23:23:36,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18733 to 14366. [2024-11-19 23:23:36,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14366 states, 13434 states have (on average 1.5965460771177609) internal successors, (21448), 13469 states have internal predecessors, (21448), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-19 23:23:36,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14366 states to 14366 states and 23121 transitions. [2024-11-19 23:23:36,345 INFO L78 Accepts]: Start accepts. Automaton has 14366 states and 23121 transitions. Word has length 179 [2024-11-19 23:23:36,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:36,345 INFO L471 AbstractCegarLoop]: Abstraction has 14366 states and 23121 transitions. [2024-11-19 23:23:36,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:36,346 INFO L276 IsEmpty]: Start isEmpty. Operand 14366 states and 23121 transitions. [2024-11-19 23:23:36,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:36,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:36,352 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:36,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 23:23:36,353 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:36,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:36,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2081014318, now seen corresponding path program 1 times [2024-11-19 23:23:36,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:36,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063457790] [2024-11-19 23:23:36,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:36,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:36,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:36,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:36,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:36,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:36,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:36,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:36,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063457790] [2024-11-19 23:23:36,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063457790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:36,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:36,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:23:36,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702366093] [2024-11-19 23:23:36,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:36,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:23:36,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:36,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:23:36,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:23:36,551 INFO L87 Difference]: Start difference. First operand 14366 states and 23121 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:40,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:40,859 INFO L93 Difference]: Finished difference Result 46311 states and 74043 transitions. [2024-11-19 23:23:40,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:23:40,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:40,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:41,042 INFO L225 Difference]: With dead ends: 46311 [2024-11-19 23:23:41,043 INFO L226 Difference]: Without dead ends: 34086 [2024-11-19 23:23:41,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:23:41,103 INFO L432 NwaCegarLoop]: 4554 mSDtfsCounter, 5564 mSDsluCounter, 17901 mSDsCounter, 0 mSdLazyCounter, 3507 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5583 SdHoareTripleChecker+Valid, 22455 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:41,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5583 Valid, 22455 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3507 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-19 23:23:41,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34086 states. [2024-11-19 23:23:42,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34086 to 26280. [2024-11-19 23:23:42,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26280 states, 24452 states have (on average 1.5722231310322263) internal successors, (38444), 24519 states have internal predecessors, (38444), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-19 23:23:42,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26280 states to 26280 states and 41979 transitions. [2024-11-19 23:23:42,523 INFO L78 Accepts]: Start accepts. Automaton has 26280 states and 41979 transitions. Word has length 179 [2024-11-19 23:23:42,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:42,524 INFO L471 AbstractCegarLoop]: Abstraction has 26280 states and 41979 transitions. [2024-11-19 23:23:42,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:42,526 INFO L276 IsEmpty]: Start isEmpty. Operand 26280 states and 41979 transitions. [2024-11-19 23:23:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:42,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:42,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:42,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 23:23:42,537 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:42,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:42,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1816366828, now seen corresponding path program 1 times [2024-11-19 23:23:42,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:42,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800251799] [2024-11-19 23:23:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:42,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:42,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:42,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:42,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:42,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:42,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:42,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:42,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800251799] [2024-11-19 23:23:42,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800251799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:42,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:42,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:23:42,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156185258] [2024-11-19 23:23:42,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:42,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:23:42,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:42,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:23:42,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:23:42,755 INFO L87 Difference]: Start difference. First operand 26280 states and 41979 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:48,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:48,141 INFO L93 Difference]: Finished difference Result 89439 states and 143251 transitions. [2024-11-19 23:23:48,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:23:48,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:48,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:48,347 INFO L225 Difference]: With dead ends: 89439 [2024-11-19 23:23:48,347 INFO L226 Difference]: Without dead ends: 65300 [2024-11-19 23:23:48,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:23:48,414 INFO L432 NwaCegarLoop]: 4554 mSDtfsCounter, 5563 mSDsluCounter, 17901 mSDsCounter, 0 mSdLazyCounter, 3494 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5582 SdHoareTripleChecker+Valid, 22455 SdHoareTripleChecker+Invalid, 3561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:48,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5582 Valid, 22455 Invalid, 3561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3494 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-19 23:23:48,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65300 states. [2024-11-19 23:23:50,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65300 to 50169. [2024-11-19 23:23:50,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50169 states, 46549 states have (on average 1.5580571011192508) internal successors, (72526), 46680 states have internal predecessors, (72526), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2024-11-19 23:23:50,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50169 states to 50169 states and 80271 transitions. [2024-11-19 23:23:50,724 INFO L78 Accepts]: Start accepts. Automaton has 50169 states and 80271 transitions. Word has length 179 [2024-11-19 23:23:50,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:23:50,725 INFO L471 AbstractCegarLoop]: Abstraction has 50169 states and 80271 transitions. [2024-11-19 23:23:50,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 50169 states and 80271 transitions. [2024-11-19 23:23:50,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:23:50,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:23:50,743 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:23:50,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 23:23:50,743 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:23:50,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:23:50,744 INFO L85 PathProgramCache]: Analyzing trace with hash -547474834, now seen corresponding path program 1 times [2024-11-19 23:23:50,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:23:50,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230525235] [2024-11-19 23:23:50,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:23:50,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:23:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:50,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:23:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:50,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:23:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:50,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:23:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:50,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:23:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:50,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:23:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:23:50,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:23:50,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:23:50,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230525235] [2024-11-19 23:23:50,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230525235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:23:50,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:23:50,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:23:50,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447327906] [2024-11-19 23:23:50,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:23:50,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:23:50,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:23:50,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:23:50,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:23:50,941 INFO L87 Difference]: Start difference. First operand 50169 states and 80271 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:23:58,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:23:58,387 INFO L93 Difference]: Finished difference Result 175694 states and 283513 transitions. [2024-11-19 23:23:58,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:23:58,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-19 23:23:58,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:23:58,752 INFO L225 Difference]: With dead ends: 175694 [2024-11-19 23:23:58,752 INFO L226 Difference]: Without dead ends: 127666 [2024-11-19 23:23:58,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:23:58,875 INFO L432 NwaCegarLoop]: 4304 mSDtfsCounter, 5666 mSDsluCounter, 17175 mSDsCounter, 0 mSdLazyCounter, 2982 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5685 SdHoareTripleChecker+Valid, 21479 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:23:58,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5685 Valid, 21479 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2982 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-19 23:23:58,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127666 states. [2024-11-19 23:24:03,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127666 to 98074. [2024-11-19 23:24:04,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98074 states, 90870 states have (on average 1.5503466490590954) internal successors, (140880), 91129 states have internal predecessors, (140880), 5404 states have call successors, (5404), 1543 states have call predecessors, (5404), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2024-11-19 23:24:04,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98074 states to 98074 states and 158503 transitions. [2024-11-19 23:24:04,593 INFO L78 Accepts]: Start accepts. Automaton has 98074 states and 158503 transitions. Word has length 179 [2024-11-19 23:24:04,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:24:04,594 INFO L471 AbstractCegarLoop]: Abstraction has 98074 states and 158503 transitions. [2024-11-19 23:24:04,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:24:04,594 INFO L276 IsEmpty]: Start isEmpty. Operand 98074 states and 158503 transitions. [2024-11-19 23:24:04,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-19 23:24:04,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:24:04,626 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:24:04,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 23:24:04,627 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:24:04,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:24:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1870653780, now seen corresponding path program 1 times [2024-11-19 23:24:04,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:24:04,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966770245] [2024-11-19 23:24:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:24:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:24:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:24:04,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:24:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:24:04,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 23:24:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:24:04,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 23:24:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:24:04,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 23:24:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:24:04,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-19 23:24:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:24:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:24:04,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:24:04,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966770245] [2024-11-19 23:24:04,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966770245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:24:04,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:24:04,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:24:04,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156733698] [2024-11-19 23:24:04,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:24:04,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:24:04,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:24:04,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:24:04,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:24:04,801 INFO L87 Difference]: Start difference. First operand 98074 states and 158503 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-19 23:24:12,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:24:12,655 INFO L93 Difference]: Finished difference Result 225470 states and 371675 transitions. [2024-11-19 23:24:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 23:24:12,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2024-11-19 23:24:12,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:24:13,393 INFO L225 Difference]: With dead ends: 225470 [2024-11-19 23:24:13,394 INFO L226 Difference]: Without dead ends: 129537 [2024-11-19 23:24:13,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:24:13,578 INFO L432 NwaCegarLoop]: 4279 mSDtfsCounter, 5131 mSDsluCounter, 16848 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5151 SdHoareTripleChecker+Valid, 21127 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 23:24:13,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5151 Valid, 21127 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 23:24:13,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129537 states.