./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 343a266e04a35949615e598ecd53205cd1ef95f44fcd29af6bf4976fff243198 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:10:25,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:10:25,373 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:10:25,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:10:25,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:10:25,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:10:25,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:10:25,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:10:25,409 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:10:25,410 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:10:25,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:10:25,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:10:25,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:10:25,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:10:25,413 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:10:25,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:10:25,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:10:25,414 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:10:25,415 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:10:25,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:10:25,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:10:25,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:10:25,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:10:25,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:10:25,421 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:10:25,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:10:25,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:10:25,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:10:25,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:10:25,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:10:25,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:10:25,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:10:25,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:10:25,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:10:25,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:10:25,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:10:25,424 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:10:25,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:10:25,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:10:25,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:10:25,425 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:10:25,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:10:25,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 343a266e04a35949615e598ecd53205cd1ef95f44fcd29af6bf4976fff243198 [2024-11-11 22:10:25,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:10:25,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:10:25,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:10:25,739 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:10:25,740 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:10:25,741 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-2.c [2024-11-11 22:10:27,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:10:27,792 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:10:27,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-2.c [2024-11-11 22:10:27,856 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b17f8cf08/d7e44bb1243b44b09f73d9d747ceef2b/FLAG5e92eeab2 [2024-11-11 22:10:27,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b17f8cf08/d7e44bb1243b44b09f73d9d747ceef2b [2024-11-11 22:10:27,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:10:27,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:10:27,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:10:27,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:10:27,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:10:27,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:10:27" (1/1) ... [2024-11-11 22:10:27,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c6d535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:27, skipping insertion in model container [2024-11-11 22:10:27,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:10:27" (1/1) ... [2024-11-11 22:10:28,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:10:29,805 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.08.cil-2.c[381679,381692] [2024-11-11 22:10:29,830 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.08.cil-2.c[383339,383352] [2024-11-11 22:10:30,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:10:30,086 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:10:30,910 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.08.cil-2.c[381679,381692] [2024-11-11 22:10:30,914 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.08.cil-2.c[383339,383352] [2024-11-11 22:10:30,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:10:31,062 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:10:31,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31 WrapperNode [2024-11-11 22:10:31,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:10:31,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:10:31,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:10:31,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:10:31,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:31,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:31,665 INFO L138 Inliner]: procedures = 60, calls = 66, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 12999 [2024-11-11 22:10:31,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:10:31,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:10:31,666 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:10:31,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:10:31,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:31,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:31,748 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:31,836 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]. [2024-11-11 22:10:31,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:31,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:32,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:32,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:32,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:32,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:32,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:10:32,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:10:32,441 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:10:32,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:10:32,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (1/1) ... [2024-11-11 22:10:32,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:10:32,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:10:32,505 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) [2024-11-11 22:10:32,510 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 [2024-11-11 22:10:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:10:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 22:10:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 22:10:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:10:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:10:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 22:10:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 22:10:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-11 22:10:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-11 22:10:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 22:10:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 22:10:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 22:10:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 22:10:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 22:10:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 22:10:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:10:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:10:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:10:32,680 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:10:32,682 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:10:40,628 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-11-11 22:10:40,628 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:10:40,703 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:10:40,703 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-11 22:10:40,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:10:40 BoogieIcfgContainer [2024-11-11 22:10:40,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:10:40,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:10:40,707 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:10:40,712 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:10:40,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:10:27" (1/3) ... [2024-11-11 22:10:40,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7debf684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:10:40, skipping insertion in model container [2024-11-11 22:10:40,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:10:31" (2/3) ... [2024-11-11 22:10:40,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7debf684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:10:40, skipping insertion in model container [2024-11-11 22:10:40,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:10:40" (3/3) ... [2024-11-11 22:10:40,716 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.08.cil-2.c [2024-11-11 22:10:40,736 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:10:40,736 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:10:40,870 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:10:40,878 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;@53329b3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:10:40,879 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:10:40,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 2482 states, 2448 states have (on average 1.8455882352941178) internal successors, (4518), 2453 states have internal predecessors, (4518), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-11 22:10:40,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:10:40,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:10:40,916 INFO L218 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] [2024-11-11 22:10:40,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:10:40,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:10:40,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1791270743, now seen corresponding path program 1 times [2024-11-11 22:10:40,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:10:40,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255814213] [2024-11-11 22:10:40,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:10:40,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:10:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:41,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:10:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:41,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:10:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:41,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:10:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:41,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:10:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:41,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:10:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:10:41,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:10:41,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255814213] [2024-11-11 22:10:41,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255814213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:10:41,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:10:41,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:10:41,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11863782] [2024-11-11 22:10:41,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:10:41,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:10:41,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:10:41,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:10:41,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:10:41,586 INFO L87 Difference]: Start difference. First operand has 2482 states, 2448 states have (on average 1.8455882352941178) internal successors, (4518), 2453 states have internal predecessors, (4518), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 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) [2024-11-11 22:10:43,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:10:43,175 INFO L93 Difference]: Finished difference Result 5055 states and 9290 transitions. [2024-11-11 22:10:43,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:10:43,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 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 135 [2024-11-11 22:10:43,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:10:43,216 INFO L225 Difference]: With dead ends: 5055 [2024-11-11 22:10:43,216 INFO L226 Difference]: Without dead ends: 2512 [2024-11-11 22:10:43,226 INFO L434 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 [2024-11-11 22:10:43,230 INFO L435 NwaCegarLoop]: 4302 mSDtfsCounter, 761 mSDsluCounter, 12397 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 16699 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:10:43,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 16699 Invalid, 781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:10:43,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2024-11-11 22:10:43,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2414. [2024-11-11 22:10:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2382 states have (on average 1.8316540722082284) internal successors, (4363), 2385 states have internal predecessors, (4363), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-11 22:10:43,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 4409 transitions. [2024-11-11 22:10:43,422 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 4409 transitions. Word has length 135 [2024-11-11 22:10:43,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:10:43,423 INFO L471 AbstractCegarLoop]: Abstraction has 2414 states and 4409 transitions. [2024-11-11 22:10:43,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 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) [2024-11-11 22:10:43,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 4409 transitions. [2024-11-11 22:10:43,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:10:43,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:10:43,429 INFO L218 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] [2024-11-11 22:10:43,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:10:43,429 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:10:43,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:10:43,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1361612437, now seen corresponding path program 1 times [2024-11-11 22:10:43,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:10:43,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406028816] [2024-11-11 22:10:43,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:10:43,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:10:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:43,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:10:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:43,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:10:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:43,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:10:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:43,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:10:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:43,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:10:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:43,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:10:43,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:10:43,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406028816] [2024-11-11 22:10:43,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406028816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:10:43,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:10:43,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:10:43,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642939849] [2024-11-11 22:10:43,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:10:43,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:10:43,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:10:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:10:43,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:10:43,875 INFO L87 Difference]: Start difference. First operand 2414 states and 4409 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-11 22:10:46,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:10:46,450 INFO L93 Difference]: Finished difference Result 3174 states and 5618 transitions. [2024-11-11 22:10:46,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:10:46,451 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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 135 [2024-11-11 22:10:46,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:10:46,464 INFO L225 Difference]: With dead ends: 3174 [2024-11-11 22:10:46,464 INFO L226 Difference]: Without dead ends: 2897 [2024-11-11 22:10:46,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:10:46,467 INFO L435 NwaCegarLoop]: 4211 mSDtfsCounter, 5083 mSDsluCounter, 12640 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5098 SdHoareTripleChecker+Valid, 16851 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:10:46,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5098 Valid, 16851 Invalid, 1698 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 22:10:46,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2024-11-11 22:10:46,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2700. [2024-11-11 22:10:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2644 states have (on average 1.8055975794251136) internal successors, (4774), 2648 states have internal predecessors, (4774), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-11 22:10:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 4857 transitions. [2024-11-11 22:10:46,564 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 4857 transitions. Word has length 135 [2024-11-11 22:10:46,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:10:46,566 INFO L471 AbstractCegarLoop]: Abstraction has 2700 states and 4857 transitions. [2024-11-11 22:10:46,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-11 22:10:46,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 4857 transitions. [2024-11-11 22:10:46,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:10:46,568 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:10:46,569 INFO L218 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] [2024-11-11 22:10:46,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:10:46,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:10:46,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:10:46,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1571352423, now seen corresponding path program 1 times [2024-11-11 22:10:46,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:10:46,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099043057] [2024-11-11 22:10:46,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:10:46,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:10:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:46,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:10:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:46,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:10:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:46,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:10:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:46,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:10:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:46,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:10:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:10:46,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:10:46,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099043057] [2024-11-11 22:10:46,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099043057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:10:46,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:10:46,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:10:46,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691703262] [2024-11-11 22:10:46,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:10:46,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:10:46,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:10:46,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:10:46,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:10:46,887 INFO L87 Difference]: Start difference. First operand 2700 states and 4857 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:10:49,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:10:49,838 INFO L93 Difference]: Finished difference Result 3855 states and 6694 transitions. [2024-11-11 22:10:49,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:10:49,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-11 22:10:49,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:10:49,856 INFO L225 Difference]: With dead ends: 3855 [2024-11-11 22:10:49,857 INFO L226 Difference]: Without dead ends: 3292 [2024-11-11 22:10:49,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:10:49,865 INFO L435 NwaCegarLoop]: 4405 mSDtfsCounter, 5100 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 21761 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:10:49,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 21761 Invalid, 2603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 22:10:49,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2024-11-11 22:10:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 2967. [2024-11-11 22:10:49,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2887 states have (on average 1.7828195358503638) internal successors, (5147), 2892 states have internal predecessors, (5147), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-11 22:10:49,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 5266 transitions. [2024-11-11 22:10:49,977 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 5266 transitions. Word has length 135 [2024-11-11 22:10:49,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:10:49,978 INFO L471 AbstractCegarLoop]: Abstraction has 2967 states and 5266 transitions. [2024-11-11 22:10:49,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:10:49,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 5266 transitions. [2024-11-11 22:10:49,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:10:49,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:10:49,981 INFO L218 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] [2024-11-11 22:10:49,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:10:49,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:10:49,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:10:49,984 INFO L85 PathProgramCache]: Analyzing trace with hash -794682647, now seen corresponding path program 1 times [2024-11-11 22:10:49,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:10:49,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058818173] [2024-11-11 22:10:49,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:10:49,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:10:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:50,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:10:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:50,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:10:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:50,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:10:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:50,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:10:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:50,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:10:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:10:50,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:10:50,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058818173] [2024-11-11 22:10:50,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058818173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:10:50,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:10:50,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:10:50,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846963370] [2024-11-11 22:10:50,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:10:50,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:10:50,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:10:50,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:10:50,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:10:50,255 INFO L87 Difference]: Start difference. First operand 2967 states and 5266 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:10:52,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:10:52,542 INFO L93 Difference]: Finished difference Result 4859 states and 8269 transitions. [2024-11-11 22:10:52,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:10:52,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-11 22:10:52,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:10:52,564 INFO L225 Difference]: With dead ends: 4859 [2024-11-11 22:10:52,564 INFO L226 Difference]: Without dead ends: 4029 [2024-11-11 22:10:52,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:10:52,573 INFO L435 NwaCegarLoop]: 4221 mSDtfsCounter, 5182 mSDsluCounter, 16830 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5197 SdHoareTripleChecker+Valid, 21051 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:10:52,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5197 Valid, 21051 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 22:10:52,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2024-11-11 22:10:52,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3502. [2024-11-11 22:10:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3502 states, 3374 states have (on average 1.7468879668049793) internal successors, (5894), 3381 states have internal predecessors, (5894), 92 states have call successors, (92), 31 states have call predecessors, (92), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-11 22:10:52,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 6089 transitions. [2024-11-11 22:10:52,727 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 6089 transitions. Word has length 135 [2024-11-11 22:10:52,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:10:52,728 INFO L471 AbstractCegarLoop]: Abstraction has 3502 states and 6089 transitions. [2024-11-11 22:10:52,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:10:52,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 6089 transitions. [2024-11-11 22:10:52,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:10:52,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:10:52,731 INFO L218 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] [2024-11-11 22:10:52,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:10:52,731 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:10:52,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:10:52,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1207203623, now seen corresponding path program 1 times [2024-11-11 22:10:52,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:10:52,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720267154] [2024-11-11 22:10:52,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:10:52,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:10:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:52,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:10:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:52,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:10:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:53,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:10:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:53,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:10:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:53,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:10:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:53,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:10:53,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:10:53,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720267154] [2024-11-11 22:10:53,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720267154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:10:53,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:10:53,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:10:53,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547810158] [2024-11-11 22:10:53,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:10:53,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:10:53,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:10:53,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:10:53,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:10:53,071 INFO L87 Difference]: Start difference. First operand 3502 states and 6089 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:10:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:10:55,644 INFO L93 Difference]: Finished difference Result 6794 states and 11288 transitions. [2024-11-11 22:10:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:10:55,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-11 22:10:55,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:10:55,668 INFO L225 Difference]: With dead ends: 6794 [2024-11-11 22:10:55,669 INFO L226 Difference]: Without dead ends: 5429 [2024-11-11 22:10:55,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:10:55,676 INFO L435 NwaCegarLoop]: 4403 mSDtfsCounter, 5098 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:10:55,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5113 Valid, 21759 Invalid, 2594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2535 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 22:10:55,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2024-11-11 22:10:55,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 4573. [2024-11-11 22:10:55,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 4349 states have (on average 1.6987813290411589) internal successors, (7388), 4360 states have internal predecessors, (7388), 160 states have call successors, (160), 55 states have call predecessors, (160), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-11 22:10:55,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 7741 transitions. [2024-11-11 22:10:55,956 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 7741 transitions. Word has length 135 [2024-11-11 22:10:55,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:10:55,956 INFO L471 AbstractCegarLoop]: Abstraction has 4573 states and 7741 transitions. [2024-11-11 22:10:55,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:10:55,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 7741 transitions. [2024-11-11 22:10:55,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:10:55,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:10:55,968 INFO L218 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] [2024-11-11 22:10:55,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:10:55,968 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:10:55,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:10:55,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1360618711, now seen corresponding path program 1 times [2024-11-11 22:10:55,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:10:55,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511471382] [2024-11-11 22:10:55,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:10:55,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:10:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:56,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:10:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:56,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:10:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:56,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:10:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:56,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:10:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:56,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:10:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:56,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:10:56,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:10:56,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511471382] [2024-11-11 22:10:56,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511471382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:10:56,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:10:56,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:10:56,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139555115] [2024-11-11 22:10:56,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:10:56,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:10:56,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:10:56,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:10:56,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:10:56,266 INFO L87 Difference]: Start difference. First operand 4573 states and 7741 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:10:58,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:10:58,983 INFO L93 Difference]: Finished difference Result 10656 states and 17330 transitions. [2024-11-11 22:10:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:10:58,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-11 22:10:58,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:10:59,022 INFO L225 Difference]: With dead ends: 10656 [2024-11-11 22:10:59,022 INFO L226 Difference]: Without dead ends: 8220 [2024-11-11 22:10:59,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:10:59,037 INFO L435 NwaCegarLoop]: 4403 mSDtfsCounter, 5094 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:10:59,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5109 Valid, 21759 Invalid, 2566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 22:10:59,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8220 states. [2024-11-11 22:10:59,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8220 to 6729. [2024-11-11 22:10:59,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6313 states have (on average 1.6473942658007286) internal successors, (10400), 6332 states have internal predecessors, (10400), 296 states have call successors, (296), 103 states have call predecessors, (296), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-11 22:10:59,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 11087 transitions. [2024-11-11 22:10:59,344 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 11087 transitions. Word has length 135 [2024-11-11 22:10:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:10:59,344 INFO L471 AbstractCegarLoop]: Abstraction has 6729 states and 11087 transitions. [2024-11-11 22:10:59,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:10:59,345 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 11087 transitions. [2024-11-11 22:10:59,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:10:59,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:10:59,349 INFO L218 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] [2024-11-11 22:10:59,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:10:59,349 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:10:59,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:10:59,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1286985643, now seen corresponding path program 1 times [2024-11-11 22:10:59,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:10:59,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334388829] [2024-11-11 22:10:59,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:10:59,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:10:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:59,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:10:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:59,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:10:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:59,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:10:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:59,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:10:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:59,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:10:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:10:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:10:59,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:10:59,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334388829] [2024-11-11 22:10:59,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334388829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:10:59,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:10:59,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:10:59,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573297997] [2024-11-11 22:10:59,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:10:59,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:10:59,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:10:59,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:10:59,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:10:59,559 INFO L87 Difference]: Start difference. First operand 6729 states and 11087 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:11:02,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:02,461 INFO L93 Difference]: Finished difference Result 18398 states and 29506 transitions. [2024-11-11 22:11:02,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:11:02,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-11 22:11:02,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:02,519 INFO L225 Difference]: With dead ends: 18398 [2024-11-11 22:11:02,519 INFO L226 Difference]: Without dead ends: 13806 [2024-11-11 22:11:02,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:11:02,547 INFO L435 NwaCegarLoop]: 4403 mSDtfsCounter, 5093 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5108 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:02,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5108 Valid, 21759 Invalid, 2553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2494 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 22:11:02,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13806 states. [2024-11-11 22:11:03,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13806 to 11054. [2024-11-11 22:11:03,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11054 states, 10254 states have (on average 1.603471815876731) internal successors, (16442), 10289 states have internal predecessors, (16442), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-11 22:11:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11054 states to 11054 states and 17851 transitions. [2024-11-11 22:11:03,065 INFO L78 Accepts]: Start accepts. Automaton has 11054 states and 17851 transitions. Word has length 135 [2024-11-11 22:11:03,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:03,065 INFO L471 AbstractCegarLoop]: Abstraction has 11054 states and 17851 transitions. [2024-11-11 22:11:03,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:11:03,065 INFO L276 IsEmpty]: Start isEmpty. Operand 11054 states and 17851 transitions. [2024-11-11 22:11:03,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:11:03,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:03,074 INFO L218 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] [2024-11-11 22:11:03,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:11:03,075 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:03,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:03,076 INFO L85 PathProgramCache]: Analyzing trace with hash -844365079, now seen corresponding path program 1 times [2024-11-11 22:11:03,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:03,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049393398] [2024-11-11 22:11:03,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:03,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:03,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:03,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:11:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:03,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:11:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:03,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:11:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:03,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:11:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:03,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:11:03,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:03,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049393398] [2024-11-11 22:11:03,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049393398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:03,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:03,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:03,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654453857] [2024-11-11 22:11:03,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:03,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:03,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:03,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:03,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:03,326 INFO L87 Difference]: Start difference. First operand 11054 states and 17851 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:11:04,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:04,909 INFO L93 Difference]: Finished difference Result 22862 states and 36753 transitions. [2024-11-11 22:11:04,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:11:04,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-11 22:11:04,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:04,964 INFO L225 Difference]: With dead ends: 22862 [2024-11-11 22:11:04,964 INFO L226 Difference]: Without dead ends: 13945 [2024-11-11 22:11:05,000 INFO L434 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 [2024-11-11 22:11:05,001 INFO L435 NwaCegarLoop]: 4196 mSDtfsCounter, 4913 mSDsluCounter, 12461 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4929 SdHoareTripleChecker+Valid, 16657 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:05,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4929 Valid, 16657 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:11:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13945 states. [2024-11-11 22:11:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13945 to 11054. [2024-11-11 22:11:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11054 states, 10254 states have (on average 1.6002535595865028) internal successors, (16409), 10289 states have internal predecessors, (16409), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-11 22:11:05,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11054 states to 11054 states and 17818 transitions. [2024-11-11 22:11:05,551 INFO L78 Accepts]: Start accepts. Automaton has 11054 states and 17818 transitions. Word has length 135 [2024-11-11 22:11:05,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:05,552 INFO L471 AbstractCegarLoop]: Abstraction has 11054 states and 17818 transitions. [2024-11-11 22:11:05,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:11:05,552 INFO L276 IsEmpty]: Start isEmpty. Operand 11054 states and 17818 transitions. [2024-11-11 22:11:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:11:05,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:05,560 INFO L218 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] [2024-11-11 22:11:05,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:11:05,560 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:05,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:05,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1882949653, now seen corresponding path program 1 times [2024-11-11 22:11:05,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:05,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773581723] [2024-11-11 22:11:05,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:05,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:05,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:05,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:11:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:05,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:11:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:05,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:11:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:05,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:11:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:11:05,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:05,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773581723] [2024-11-11 22:11:05,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773581723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:05,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:05,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:05,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730722411] [2024-11-11 22:11:05,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:05,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:05,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:05,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:05,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:05,789 INFO L87 Difference]: Start difference. First operand 11054 states and 17818 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:11:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:09,019 INFO L93 Difference]: Finished difference Result 33847 states and 53816 transitions. [2024-11-11 22:11:09,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:11:09,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-11 22:11:09,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:09,122 INFO L225 Difference]: With dead ends: 33847 [2024-11-11 22:11:09,123 INFO L226 Difference]: Without dead ends: 24930 [2024-11-11 22:11:09,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:11:09,169 INFO L435 NwaCegarLoop]: 4403 mSDtfsCounter, 5085 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5100 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:09,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5100 Valid, 21759 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 22:11:09,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24930 states. [2024-11-11 22:11:10,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24930 to 19768. [2024-11-11 22:11:10,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19768 states, 18200 states have (on average 1.568186813186813) internal successors, (28541), 18267 states have internal predecessors, (28541), 1112 states have call successors, (1112), 391 states have call predecessors, (1112), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2024-11-11 22:11:10,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19768 states to 19768 states and 31556 transitions. [2024-11-11 22:11:10,669 INFO L78 Accepts]: Start accepts. Automaton has 19768 states and 31556 transitions. Word has length 135 [2024-11-11 22:11:10,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:10,670 INFO L471 AbstractCegarLoop]: Abstraction has 19768 states and 31556 transitions. [2024-11-11 22:11:10,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:11:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 19768 states and 31556 transitions. [2024-11-11 22:11:10,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:11:10,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:10,686 INFO L218 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] [2024-11-11 22:11:10,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:11:10,686 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:10,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:10,687 INFO L85 PathProgramCache]: Analyzing trace with hash 438852265, now seen corresponding path program 1 times [2024-11-11 22:11:10,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:10,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318917745] [2024-11-11 22:11:10,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:10,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:10,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:10,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:11:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:10,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:11:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:10,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:11:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:10,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:11:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:10,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:11:10,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:10,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318917745] [2024-11-11 22:11:10,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318917745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:10,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:10,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:10,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303702472] [2024-11-11 22:11:10,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:10,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:10,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:10,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:10,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:10,909 INFO L87 Difference]: Start difference. First operand 19768 states and 31556 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:11:14,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:14,998 INFO L93 Difference]: Finished difference Result 72559 states and 115090 transitions. [2024-11-11 22:11:14,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:11:14,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-11 22:11:15,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:15,242 INFO L225 Difference]: With dead ends: 72559 [2024-11-11 22:11:15,242 INFO L226 Difference]: Without dead ends: 54928 [2024-11-11 22:11:15,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:11:15,314 INFO L435 NwaCegarLoop]: 4401 mSDtfsCounter, 5414 mSDsluCounter, 17348 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5438 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:15,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5438 Valid, 21749 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 22:11:15,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54928 states. [2024-11-11 22:11:17,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54928 to 37065. [2024-11-11 22:11:17,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37065 states, 34025 states have (on average 1.5508302718589273) internal successors, (52767), 34156 states have internal predecessors, (52767), 2136 states have call successors, (2136), 775 states have call predecessors, (2136), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2024-11-11 22:11:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37065 states to 37065 states and 59352 transitions. [2024-11-11 22:11:17,515 INFO L78 Accepts]: Start accepts. Automaton has 37065 states and 59352 transitions. Word has length 135 [2024-11-11 22:11:17,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:17,515 INFO L471 AbstractCegarLoop]: Abstraction has 37065 states and 59352 transitions. [2024-11-11 22:11:17,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:11:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 37065 states and 59352 transitions. [2024-11-11 22:11:17,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:11:17,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:17,540 INFO L218 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] [2024-11-11 22:11:17,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:11:17,541 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:17,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1703008213, now seen corresponding path program 1 times [2024-11-11 22:11:17,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:17,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451205805] [2024-11-11 22:11:17,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:17,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:17,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:17,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:11:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:17,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:11:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:17,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:11:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:17,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:11:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:11:17,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:17,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451205805] [2024-11-11 22:11:17,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451205805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:17,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:17,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:17,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801148756] [2024-11-11 22:11:17,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:17,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:17,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:17,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:17,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:17,759 INFO L87 Difference]: Start difference. First operand 37065 states and 59352 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:11:24,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:11:24,899 INFO L93 Difference]: Finished difference Result 140126 states and 224504 transitions. [2024-11-11 22:11:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:11:24,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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 135 [2024-11-11 22:11:24,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:11:25,638 INFO L225 Difference]: With dead ends: 140126 [2024-11-11 22:11:25,638 INFO L226 Difference]: Without dead ends: 105198 [2024-11-11 22:11:25,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:11:25,748 INFO L435 NwaCegarLoop]: 4247 mSDtfsCounter, 5225 mSDsluCounter, 16850 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5239 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:11:25,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5239 Valid, 21097 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 22:11:25,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105198 states. [2024-11-11 22:11:30,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105198 to 70314. [2024-11-11 22:11:30,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70314 states, 64394 states have (on average 1.5370531415970432) internal successors, (98977), 64653 states have internal predecessors, (98977), 4120 states have call successors, (4120), 1543 states have call predecessors, (4120), 1798 states have return successors, (10935), 4373 states have call predecessors, (10935), 4118 states have call successors, (10935) [2024-11-11 22:11:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70314 states to 70314 states and 114032 transitions. [2024-11-11 22:11:30,712 INFO L78 Accepts]: Start accepts. Automaton has 70314 states and 114032 transitions. Word has length 135 [2024-11-11 22:11:30,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:11:30,712 INFO L471 AbstractCegarLoop]: Abstraction has 70314 states and 114032 transitions. [2024-11-11 22:11:30,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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) [2024-11-11 22:11:30,712 INFO L276 IsEmpty]: Start isEmpty. Operand 70314 states and 114032 transitions. [2024-11-11 22:11:30,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-11 22:11:30,753 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:11:30,753 INFO L218 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] [2024-11-11 22:11:30,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:11:30,754 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:11:30,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:11:30,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1968677481, now seen corresponding path program 1 times [2024-11-11 22:11:30,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:11:30,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462188703] [2024-11-11 22:11:30,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:11:30,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:11:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:30,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:11:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:30,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 22:11:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:30,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:11:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:30,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 22:11:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:30,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 22:11:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:11:30,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:11:30,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:11:30,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462188703] [2024-11-11 22:11:30,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462188703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:11:30,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:11:30,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:11:30,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165731202] [2024-11-11 22:11:30,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:11:30,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:11:30,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:11:30,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:11:30,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:11:30,941 INFO L87 Difference]: Start difference. First operand 70314 states and 114032 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 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)