./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 b4ef8e9ed2cd06e3f1b2681e4efb1f48663612c7770f819d08e3f1f515d36787 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 04:23:47,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 04:23:47,607 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 04:23:47,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 04:23:47,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 04:23:47,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 04:23:47,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 04:23:47,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 04:23:47,639 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 04:23:47,639 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 04:23:47,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 04:23:47,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 04:23:47,640 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 04:23:47,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 04:23:47,641 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 04:23:47,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 04:23:47,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 04:23:47,643 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 04:23:47,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 04:23:47,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 04:23:47,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 04:23:47,650 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 04:23:47,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 04:23:47,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 04:23:47,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 04:23:47,652 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 04:23:47,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 04:23:47,653 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 04:23:47,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 04:23:47,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 04:23:47,654 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 04:23:47,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 04:23:47,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:23:47,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 04:23:47,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 04:23:47,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 04:23:47,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 04:23:47,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 04:23:47,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 04:23:47,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 04:23:47,657 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 04:23:47,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 04:23:47,657 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4ef8e9ed2cd06e3f1b2681e4efb1f48663612c7770f819d08e3f1f515d36787 [2024-10-11 04:23:47,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 04:23:47,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 04:23:47,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 04:23:47,957 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 04:23:47,957 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 04:23:47,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c [2024-10-11 04:23:49,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 04:23:50,020 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 04:23:50,021 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c [2024-10-11 04:23:50,091 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/cb0cdb0ef/684b7716e6144471a769991f03280169/FLAG812f00da5 [2024-10-11 04:23:50,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/cb0cdb0ef/684b7716e6144471a769991f03280169 [2024-10-11 04:23:50,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 04:23:50,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 04:23:50,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 04:23:50,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 04:23:50,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 04:23:50,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:23:50" (1/1) ... [2024-10-11 04:23:50,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad59d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:50, skipping insertion in model container [2024-10-11 04:23:50,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:23:50" (1/1) ... [2024-10-11 04:23:50,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 04:23:52,234 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[382357,382370] [2024-10-11 04:23:52,266 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[383339,383352] [2024-10-11 04:23:52,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:23:52,564 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 04:23:53,343 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[382357,382370] [2024-10-11 04:23:53,346 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[383339,383352] [2024-10-11 04:23:53,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:23:53,430 INFO L204 MainTranslator]: Completed translation [2024-10-11 04:23:53,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53 WrapperNode [2024-10-11 04:23:53,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 04:23:53,432 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 04:23:53,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 04:23:53,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 04:23:53,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:53,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:53,903 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13237 [2024-10-11 04:23:53,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 04:23:53,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 04:23:53,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 04:23:53,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 04:23:53,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:53,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:54,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:54,163 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 04:23:54,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:54,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:54,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:54,374 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:54,442 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:54,474 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:54,616 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 04:23:54,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 04:23:54,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 04:23:54,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 04:23:54,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (1/1) ... [2024-10-11 04:23:54,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:23:54,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:23:54,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 04:23:54,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 04:23:54,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 04:23:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-11 04:23:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-11 04:23:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-11 04:23:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-11 04:23:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-11 04:23:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-11 04:23:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-11 04:23:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-11 04:23:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-11 04:23:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-11 04:23:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-11 04:23:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-11 04:23:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-11 04:23:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-11 04:23:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 04:23:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 04:23:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 04:23:54,822 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 04:23:54,824 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 04:24:02,611 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2024-10-11 04:24:02,611 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 04:24:02,719 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 04:24:02,719 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-11 04:24:02,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:24:02 BoogieIcfgContainer [2024-10-11 04:24:02,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 04:24:02,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 04:24:02,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 04:24:02,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 04:24:02,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:23:50" (1/3) ... [2024-10-11 04:24:02,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@833530c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:24:02, skipping insertion in model container [2024-10-11 04:24:02,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:23:53" (2/3) ... [2024-10-11 04:24:02,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@833530c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:24:02, skipping insertion in model container [2024-10-11 04:24:02,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:24:02" (3/3) ... [2024-10-11 04:24:02,729 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.14.cil.c [2024-10-11 04:24:02,744 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 04:24:02,744 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 04:24:02,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 04:24:02,857 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;@3ea921d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 04:24:02,857 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 04:24:02,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 2477 states, 2439 states have (on average 1.8757687576875768) internal successors, (4575), 2444 states have internal predecessors, (4575), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-11 04:24:02,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:02,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:02,889 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:02,890 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:02,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:02,895 INFO L85 PathProgramCache]: Analyzing trace with hash -282034047, now seen corresponding path program 1 times [2024-10-11 04:24:02,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:02,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145370307] [2024-10-11 04:24:02,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:02,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:03,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:03,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:03,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:03,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:03,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:03,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:03,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:03,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145370307] [2024-10-11 04:24:03,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145370307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:03,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:03,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 04:24:03,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511134377] [2024-10-11 04:24:03,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:03,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 04:24:03,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:03,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 04:24:03,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 04:24:03,590 INFO L87 Difference]: Start difference. First operand has 2477 states, 2439 states have (on average 1.8757687576875768) internal successors, (4575), 2444 states have internal predecessors, (4575), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:05,765 INFO L93 Difference]: Finished difference Result 5079 states and 9486 transitions. [2024-10-11 04:24:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:24:05,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:05,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:05,807 INFO L225 Difference]: With dead ends: 5079 [2024-10-11 04:24:05,807 INFO L226 Difference]: Without dead ends: 2602 [2024-10-11 04:24:05,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:24:05,818 INFO L432 NwaCegarLoop]: 4264 mSDtfsCounter, 989 mSDsluCounter, 12214 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 16478 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:05,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 16478 Invalid, 1131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 04:24:05,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2024-10-11 04:24:05,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2472. [2024-10-11 04:24:05,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 2436 states have (on average 1.8370279146141215) internal successors, (4475), 2439 states have internal predecessors, (4475), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 04:24:05,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 4529 transitions. [2024-10-11 04:24:05,997 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 4529 transitions. Word has length 162 [2024-10-11 04:24:05,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:05,998 INFO L471 AbstractCegarLoop]: Abstraction has 2472 states and 4529 transitions. [2024-10-11 04:24:05,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 4529 transitions. [2024-10-11 04:24:06,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:06,010 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:06,011 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:06,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 04:24:06,011 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:06,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:06,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1487437567, now seen corresponding path program 1 times [2024-10-11 04:24:06,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:06,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315257573] [2024-10-11 04:24:06,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:06,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:06,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:06,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:06,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:06,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:06,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:06,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:06,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315257573] [2024-10-11 04:24:06,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315257573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:06,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:06,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 04:24:06,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670950298] [2024-10-11 04:24:06,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:06,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 04:24:06,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:06,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 04:24:06,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 04:24:06,307 INFO L87 Difference]: Start difference. First operand 2472 states and 4529 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:08,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:08,256 INFO L93 Difference]: Finished difference Result 2940 states and 5310 transitions. [2024-10-11 04:24:08,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:24:08,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:08,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:08,269 INFO L225 Difference]: With dead ends: 2940 [2024-10-11 04:24:08,269 INFO L226 Difference]: Without dead ends: 2602 [2024-10-11 04:24:08,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:24:08,272 INFO L432 NwaCegarLoop]: 4260 mSDtfsCounter, 977 mSDsluCounter, 12205 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 16465 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:08,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 16465 Invalid, 1120 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 04:24:08,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2024-10-11 04:24:08,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2472. [2024-10-11 04:24:08,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 2436 states have (on average 1.8366174055829227) internal successors, (4474), 2439 states have internal predecessors, (4474), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 04:24:08,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 4528 transitions. [2024-10-11 04:24:08,343 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 4528 transitions. Word has length 162 [2024-10-11 04:24:08,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:08,343 INFO L471 AbstractCegarLoop]: Abstraction has 2472 states and 4528 transitions. [2024-10-11 04:24:08,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:08,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 4528 transitions. [2024-10-11 04:24:08,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:08,347 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:08,347 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:08,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 04:24:08,347 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:08,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:08,348 INFO L85 PathProgramCache]: Analyzing trace with hash -443688067, now seen corresponding path program 1 times [2024-10-11 04:24:08,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:08,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7681637] [2024-10-11 04:24:08,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:08,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:08,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:08,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:08,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:08,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:08,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:08,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:08,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7681637] [2024-10-11 04:24:08,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7681637] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:08,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:08,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 04:24:08,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364705162] [2024-10-11 04:24:08,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:08,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 04:24:08,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:08,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 04:24:08,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 04:24:08,751 INFO L87 Difference]: Start difference. First operand 2472 states and 4528 transitions. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:11,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:11,705 INFO L93 Difference]: Finished difference Result 3417 states and 6110 transitions. [2024-10-11 04:24:11,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 04:24:11,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:11,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:11,722 INFO L225 Difference]: With dead ends: 3417 [2024-10-11 04:24:11,722 INFO L226 Difference]: Without dead ends: 3084 [2024-10-11 04:24:11,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:24:11,726 INFO L432 NwaCegarLoop]: 4228 mSDtfsCounter, 5445 mSDsluCounter, 12677 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5464 SdHoareTripleChecker+Valid, 16905 SdHoareTripleChecker+Invalid, 2418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:11,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5464 Valid, 16905 Invalid, 2418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [116 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 04:24:11,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2024-10-11 04:24:11,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2823. [2024-10-11 04:24:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2823 states, 2759 states have (on average 1.8151504168176875) internal successors, (5008), 2763 states have internal predecessors, (5008), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-10-11 04:24:11,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2823 states to 2823 states and 5107 transitions. [2024-10-11 04:24:11,831 INFO L78 Accepts]: Start accepts. Automaton has 2823 states and 5107 transitions. Word has length 162 [2024-10-11 04:24:11,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:11,833 INFO L471 AbstractCegarLoop]: Abstraction has 2823 states and 5107 transitions. [2024-10-11 04:24:11,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:11,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2823 states and 5107 transitions. [2024-10-11 04:24:11,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:11,837 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:11,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:11,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 04:24:11,837 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:11,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:11,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1645910845, now seen corresponding path program 1 times [2024-10-11 04:24:11,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:11,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193311144] [2024-10-11 04:24:11,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:11,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:12,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:12,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:12,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:12,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:12,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:12,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:12,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:12,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193311144] [2024-10-11 04:24:12,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193311144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:12,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:12,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:12,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567862899] [2024-10-11 04:24:12,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:12,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:12,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:12,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:12,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:12,209 INFO L87 Difference]: Start difference. First operand 2823 states and 5107 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:16,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:16,039 INFO L93 Difference]: Finished difference Result 4268 states and 7528 transitions. [2024-10-11 04:24:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:24:16,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:16,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:16,059 INFO L225 Difference]: With dead ends: 4268 [2024-10-11 04:24:16,059 INFO L226 Difference]: Without dead ends: 3584 [2024-10-11 04:24:16,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:24:16,066 INFO L432 NwaCegarLoop]: 4433 mSDtfsCounter, 5480 mSDsluCounter, 17405 mSDsCounter, 0 mSdLazyCounter, 3740 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5499 SdHoareTripleChecker+Valid, 21838 SdHoareTripleChecker+Invalid, 3805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:16,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5499 Valid, 21838 Invalid, 3805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3740 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-11 04:24:16,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2024-10-11 04:24:16,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3147. [2024-10-11 04:24:16,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3147 states, 3055 states have (on average 1.7963993453355156) internal successors, (5488), 3060 states have internal predecessors, (5488), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-10-11 04:24:16,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3147 states to 3147 states and 5631 transitions. [2024-10-11 04:24:16,222 INFO L78 Accepts]: Start accepts. Automaton has 3147 states and 5631 transitions. Word has length 162 [2024-10-11 04:24:16,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:16,223 INFO L471 AbstractCegarLoop]: Abstraction has 3147 states and 5631 transitions. [2024-10-11 04:24:16,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3147 states and 5631 transitions. [2024-10-11 04:24:16,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:16,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:16,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:16,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 04:24:16,228 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:16,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:16,232 INFO L85 PathProgramCache]: Analyzing trace with hash 2056521211, now seen corresponding path program 1 times [2024-10-11 04:24:16,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:16,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968476337] [2024-10-11 04:24:16,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:16,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:16,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:16,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:16,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:16,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:16,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:16,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:16,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:16,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968476337] [2024-10-11 04:24:16,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968476337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:16,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:16,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:16,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497790463] [2024-10-11 04:24:16,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:16,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:16,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:16,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:16,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:16,596 INFO L87 Difference]: Start difference. First operand 3147 states and 5631 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:20,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:20,137 INFO L93 Difference]: Finished difference Result 5515 states and 9592 transitions. [2024-10-11 04:24:20,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:24:20,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:20,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:20,158 INFO L225 Difference]: With dead ends: 5515 [2024-10-11 04:24:20,158 INFO L226 Difference]: Without dead ends: 4507 [2024-10-11 04:24:20,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:24:20,164 INFO L432 NwaCegarLoop]: 4237 mSDtfsCounter, 5592 mSDsluCounter, 16878 mSDsCounter, 0 mSdLazyCounter, 3099 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5611 SdHoareTripleChecker+Valid, 21115 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:20,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5611 Valid, 21115 Invalid, 3206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 3099 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 04:24:20,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4507 states. [2024-10-11 04:24:20,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4507 to 3796. [2024-10-11 04:24:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3796 states, 3648 states have (on average 1.7678179824561404) internal successors, (6449), 3655 states have internal predecessors, (6449), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-11 04:24:20,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 6684 transitions. [2024-10-11 04:24:20,313 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 6684 transitions. Word has length 162 [2024-10-11 04:24:20,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:20,314 INFO L471 AbstractCegarLoop]: Abstraction has 3796 states and 6684 transitions. [2024-10-11 04:24:20,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:20,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 6684 transitions. [2024-10-11 04:24:20,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:20,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:20,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:20,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 04:24:20,317 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:20,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:20,317 INFO L85 PathProgramCache]: Analyzing trace with hash 268651389, now seen corresponding path program 1 times [2024-10-11 04:24:20,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:20,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220738030] [2024-10-11 04:24:20,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:20,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:20,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:20,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:20,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:20,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:20,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:20,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:20,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220738030] [2024-10-11 04:24:20,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220738030] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:20,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:20,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:20,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173657267] [2024-10-11 04:24:20,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:20,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:20,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:20,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:20,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:20,629 INFO L87 Difference]: Start difference. First operand 3796 states and 6684 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:22,514 INFO L93 Difference]: Finished difference Result 6152 states and 10636 transitions. [2024-10-11 04:24:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:24:22,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:22,532 INFO L225 Difference]: With dead ends: 6152 [2024-10-11 04:24:22,532 INFO L226 Difference]: Without dead ends: 4495 [2024-10-11 04:24:22,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:24:22,540 INFO L432 NwaCegarLoop]: 4215 mSDtfsCounter, 5203 mSDsluCounter, 12497 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 16712 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:22,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 16712 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-11 04:24:22,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4495 states. [2024-10-11 04:24:22,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4495 to 3796. [2024-10-11 04:24:22,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3796 states, 3648 states have (on average 1.7664473684210527) internal successors, (6444), 3655 states have internal predecessors, (6444), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-11 04:24:22,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 6679 transitions. [2024-10-11 04:24:22,695 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 6679 transitions. Word has length 162 [2024-10-11 04:24:22,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:22,696 INFO L471 AbstractCegarLoop]: Abstraction has 3796 states and 6679 transitions. [2024-10-11 04:24:22,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:22,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 6679 transitions. [2024-10-11 04:24:22,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:22,698 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:22,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:22,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 04:24:22,699 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:22,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:22,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1867231813, now seen corresponding path program 1 times [2024-10-11 04:24:22,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:22,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034599355] [2024-10-11 04:24:22,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:22,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:22,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:22,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:22,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:22,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:22,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:22,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:22,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:22,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034599355] [2024-10-11 04:24:22,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034599355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:22,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:22,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:22,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233863440] [2024-10-11 04:24:22,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:22,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:22,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:22,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:22,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:22,980 INFO L87 Difference]: Start difference. First operand 3796 states and 6679 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:24,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:24,891 INFO L93 Difference]: Finished difference Result 6141 states and 10600 transitions. [2024-10-11 04:24:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:24:24,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:24,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:24,914 INFO L225 Difference]: With dead ends: 6141 [2024-10-11 04:24:24,915 INFO L226 Difference]: Without dead ends: 4484 [2024-10-11 04:24:24,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:24:24,924 INFO L432 NwaCegarLoop]: 4215 mSDtfsCounter, 5046 mSDsluCounter, 16621 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5066 SdHoareTripleChecker+Valid, 20836 SdHoareTripleChecker+Invalid, 1953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:24,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5066 Valid, 20836 Invalid, 1953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 04:24:24,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2024-10-11 04:24:25,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 3796. [2024-10-11 04:24:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3796 states, 3648 states have (on average 1.765076754385965) internal successors, (6439), 3655 states have internal predecessors, (6439), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-10-11 04:24:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 6674 transitions. [2024-10-11 04:24:25,186 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 6674 transitions. Word has length 162 [2024-10-11 04:24:25,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:25,186 INFO L471 AbstractCegarLoop]: Abstraction has 3796 states and 6674 transitions. [2024-10-11 04:24:25,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:25,187 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 6674 transitions. [2024-10-11 04:24:25,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:25,190 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:25,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:25,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 04:24:25,190 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:25,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:25,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1449343111, now seen corresponding path program 1 times [2024-10-11 04:24:25,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:25,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123528734] [2024-10-11 04:24:25,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:25,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:25,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:25,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:25,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:25,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:25,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:25,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:25,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123528734] [2024-10-11 04:24:25,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123528734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:25,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:25,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:25,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430561526] [2024-10-11 04:24:25,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:25,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:25,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:25,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:25,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:25,487 INFO L87 Difference]: Start difference. First operand 3796 states and 6674 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:29,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:29,002 INFO L93 Difference]: Finished difference Result 7887 states and 13447 transitions. [2024-10-11 04:24:29,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:24:29,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:29,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:29,027 INFO L225 Difference]: With dead ends: 7887 [2024-10-11 04:24:29,027 INFO L226 Difference]: Without dead ends: 6230 [2024-10-11 04:24:29,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:24:29,036 INFO L432 NwaCegarLoop]: 4431 mSDtfsCounter, 5463 mSDsluCounter, 17405 mSDsCounter, 0 mSdLazyCounter, 3661 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5482 SdHoareTripleChecker+Valid, 21836 SdHoareTripleChecker+Invalid, 3728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:29,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5482 Valid, 21836 Invalid, 3728 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3661 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 04:24:29,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6230 states. [2024-10-11 04:24:29,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6230 to 5109. [2024-10-11 04:24:29,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 4849 states have (on average 1.7269540111363169) internal successors, (8374), 4860 states have internal predecessors, (8374), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-11 04:24:29,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 8799 transitions. [2024-10-11 04:24:29,274 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 8799 transitions. Word has length 162 [2024-10-11 04:24:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:29,275 INFO L471 AbstractCegarLoop]: Abstraction has 5109 states and 8799 transitions. [2024-10-11 04:24:29,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 8799 transitions. [2024-10-11 04:24:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:29,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:29,280 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:29,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 04:24:29,280 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:29,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:29,281 INFO L85 PathProgramCache]: Analyzing trace with hash -50389509, now seen corresponding path program 1 times [2024-10-11 04:24:29,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:29,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271710905] [2024-10-11 04:24:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:29,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:29,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:29,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:29,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:29,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:29,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:29,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:29,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271710905] [2024-10-11 04:24:29,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271710905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:29,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:29,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:29,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882375726] [2024-10-11 04:24:29,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:29,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:29,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:29,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:29,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:29,652 INFO L87 Difference]: Start difference. First operand 5109 states and 8799 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:31,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:31,781 INFO L93 Difference]: Finished difference Result 9223 states and 15645 transitions. [2024-10-11 04:24:31,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:24:31,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:31,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:31,800 INFO L225 Difference]: With dead ends: 9223 [2024-10-11 04:24:31,800 INFO L226 Difference]: Without dead ends: 6253 [2024-10-11 04:24:31,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:24:31,812 INFO L432 NwaCegarLoop]: 4215 mSDtfsCounter, 5045 mSDsluCounter, 16621 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5065 SdHoareTripleChecker+Valid, 20836 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:31,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5065 Valid, 20836 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 04:24:31,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6253 states. [2024-10-11 04:24:32,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6253 to 5109. [2024-10-11 04:24:32,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 4849 states have (on average 1.7250979583419261) internal successors, (8365), 4860 states have internal predecessors, (8365), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-10-11 04:24:32,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 8790 transitions. [2024-10-11 04:24:32,033 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 8790 transitions. Word has length 162 [2024-10-11 04:24:32,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:32,034 INFO L471 AbstractCegarLoop]: Abstraction has 5109 states and 8790 transitions. [2024-10-11 04:24:32,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:32,034 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 8790 transitions. [2024-10-11 04:24:32,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:32,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:32,038 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:32,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 04:24:32,039 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:32,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:32,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1667829959, now seen corresponding path program 1 times [2024-10-11 04:24:32,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:32,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437739341] [2024-10-11 04:24:32,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:32,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:32,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:32,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:32,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:32,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:32,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:32,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:32,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:32,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437739341] [2024-10-11 04:24:32,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437739341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:32,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:32,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:32,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084534639] [2024-10-11 04:24:32,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:32,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:32,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:32,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:32,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:32,312 INFO L87 Difference]: Start difference. First operand 5109 states and 8790 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:35,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:35,907 INFO L93 Difference]: Finished difference Result 12658 states and 21228 transitions. [2024-10-11 04:24:35,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:24:35,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:35,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:35,941 INFO L225 Difference]: With dead ends: 12658 [2024-10-11 04:24:35,941 INFO L226 Difference]: Without dead ends: 9688 [2024-10-11 04:24:35,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:24:35,954 INFO L432 NwaCegarLoop]: 4431 mSDtfsCounter, 5455 mSDsluCounter, 17405 mSDsCounter, 0 mSdLazyCounter, 3623 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5474 SdHoareTripleChecker+Valid, 21836 SdHoareTripleChecker+Invalid, 3690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:35,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5474 Valid, 21836 Invalid, 3690 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3623 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 04:24:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9688 states. [2024-10-11 04:24:36,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9688 to 7745. [2024-10-11 04:24:36,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7745 states, 7261 states have (on average 1.6850296102465225) internal successors, (12235), 7280 states have internal predecessors, (12235), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-10-11 04:24:36,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7745 states to 7745 states and 13058 transitions. [2024-10-11 04:24:36,375 INFO L78 Accepts]: Start accepts. Automaton has 7745 states and 13058 transitions. Word has length 162 [2024-10-11 04:24:36,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:36,376 INFO L471 AbstractCegarLoop]: Abstraction has 7745 states and 13058 transitions. [2024-10-11 04:24:36,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:36,376 INFO L276 IsEmpty]: Start isEmpty. Operand 7745 states and 13058 transitions. [2024-10-11 04:24:36,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:36,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:36,381 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:36,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 04:24:36,382 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:36,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:36,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1304363461, now seen corresponding path program 1 times [2024-10-11 04:24:36,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:36,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077877664] [2024-10-11 04:24:36,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:36,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:36,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:36,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:36,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:36,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:36,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:36,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:36,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077877664] [2024-10-11 04:24:36,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077877664] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:36,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:36,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:36,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133664990] [2024-10-11 04:24:36,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:36,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:36,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:36,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:36,650 INFO L87 Difference]: Start difference. First operand 7745 states and 13058 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:40,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:40,511 INFO L93 Difference]: Finished difference Result 22216 states and 36922 transitions. [2024-10-11 04:24:40,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:24:40,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:40,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:40,581 INFO L225 Difference]: With dead ends: 22216 [2024-10-11 04:24:40,582 INFO L226 Difference]: Without dead ends: 16610 [2024-10-11 04:24:40,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:24:40,607 INFO L432 NwaCegarLoop]: 4431 mSDtfsCounter, 5454 mSDsluCounter, 17405 mSDsCounter, 0 mSdLazyCounter, 3610 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5473 SdHoareTripleChecker+Valid, 21836 SdHoareTripleChecker+Invalid, 3677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:40,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5473 Valid, 21836 Invalid, 3677 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3610 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 04:24:40,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16610 states. [2024-10-11 04:24:41,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16610 to 13030. [2024-10-11 04:24:41,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13030 states, 12098 states have (on average 1.652587204496611) internal successors, (19993), 12133 states have internal predecessors, (19993), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-10-11 04:24:41,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13030 states to 13030 states and 21666 transitions. [2024-10-11 04:24:41,228 INFO L78 Accepts]: Start accepts. Automaton has 13030 states and 21666 transitions. Word has length 162 [2024-10-11 04:24:41,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:41,228 INFO L471 AbstractCegarLoop]: Abstraction has 13030 states and 21666 transitions. [2024-10-11 04:24:41,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:41,229 INFO L276 IsEmpty]: Start isEmpty. Operand 13030 states and 21666 transitions. [2024-10-11 04:24:41,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:41,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:41,237 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:41,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 04:24:41,237 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:41,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:41,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1015544071, now seen corresponding path program 1 times [2024-10-11 04:24:41,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:41,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652656207] [2024-10-11 04:24:41,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:41,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:41,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:41,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:41,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:41,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:41,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:41,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:41,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:41,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652656207] [2024-10-11 04:24:41,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652656207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:41,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:41,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:41,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260455418] [2024-10-11 04:24:41,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:41,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:41,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:41,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:41,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:41,648 INFO L87 Difference]: Start difference. First operand 13030 states and 21666 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:45,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:45,855 INFO L93 Difference]: Finished difference Result 41331 states and 68500 transitions. [2024-10-11 04:24:45,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:24:45,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:45,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:45,985 INFO L225 Difference]: With dead ends: 41331 [2024-10-11 04:24:45,985 INFO L226 Difference]: Without dead ends: 30440 [2024-10-11 04:24:46,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-11 04:24:46,032 INFO L432 NwaCegarLoop]: 4237 mSDtfsCounter, 5553 mSDsluCounter, 16878 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5572 SdHoareTripleChecker+Valid, 21115 SdHoareTripleChecker+Invalid, 3112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:46,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5572 Valid, 21115 Invalid, 3112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-11 04:24:46,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30440 states. [2024-10-11 04:24:47,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30440 to 23631. [2024-10-11 04:24:47,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23631 states, 21803 states have (on average 1.6307388891436958) internal successors, (35555), 21870 states have internal predecessors, (35555), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-11 04:24:47,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23631 states to 23631 states and 39090 transitions. [2024-10-11 04:24:47,458 INFO L78 Accepts]: Start accepts. Automaton has 23631 states and 39090 transitions. Word has length 162 [2024-10-11 04:24:47,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:47,459 INFO L471 AbstractCegarLoop]: Abstraction has 23631 states and 39090 transitions. [2024-10-11 04:24:47,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:47,459 INFO L276 IsEmpty]: Start isEmpty. Operand 23631 states and 39090 transitions. [2024-10-11 04:24:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:47,477 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:47,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:47,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 04:24:47,477 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:47,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:47,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1560416645, now seen corresponding path program 1 times [2024-10-11 04:24:47,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:47,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562631855] [2024-10-11 04:24:47,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:47,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:47,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:47,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:47,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:47,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:47,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:47,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:47,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:47,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562631855] [2024-10-11 04:24:47,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562631855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:47,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:47,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:47,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434620371] [2024-10-11 04:24:47,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:47,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:47,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:47,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:47,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:47,759 INFO L87 Difference]: Start difference. First operand 23631 states and 39090 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:50,622 INFO L93 Difference]: Finished difference Result 52363 states and 87432 transitions. [2024-10-11 04:24:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:24:50,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:50,726 INFO L225 Difference]: With dead ends: 52363 [2024-10-11 04:24:50,726 INFO L226 Difference]: Without dead ends: 30871 [2024-10-11 04:24:50,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:24:50,795 INFO L432 NwaCegarLoop]: 4215 mSDtfsCounter, 5205 mSDsluCounter, 12497 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5225 SdHoareTripleChecker+Valid, 16712 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:50,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5225 Valid, 16712 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1636 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 04:24:50,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30871 states. [2024-10-11 04:24:52,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30871 to 23631. [2024-10-11 04:24:52,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23631 states, 21803 states have (on average 1.6277576480300877) internal successors, (35490), 21870 states have internal predecessors, (35490), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-10-11 04:24:52,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23631 states to 23631 states and 39025 transitions. [2024-10-11 04:24:52,381 INFO L78 Accepts]: Start accepts. Automaton has 23631 states and 39025 transitions. Word has length 162 [2024-10-11 04:24:52,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:24:52,381 INFO L471 AbstractCegarLoop]: Abstraction has 23631 states and 39025 transitions. [2024-10-11 04:24:52,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:52,382 INFO L276 IsEmpty]: Start isEmpty. Operand 23631 states and 39025 transitions. [2024-10-11 04:24:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 04:24:52,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:24:52,397 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:24:52,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 04:24:52,397 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:24:52,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:24:52,398 INFO L85 PathProgramCache]: Analyzing trace with hash -885256519, now seen corresponding path program 1 times [2024-10-11 04:24:52,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:24:52,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106900736] [2024-10-11 04:24:52,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:24:52,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:24:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:52,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 04:24:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:52,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 04:24:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:52,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 04:24:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:52,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 04:24:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:52,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 04:24:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:24:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:24:52,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:24:52,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106900736] [2024-10-11 04:24:52,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106900736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:24:52,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:24:52,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:24:52,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86644940] [2024-10-11 04:24:52,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:24:52,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:24:52,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:24:52,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:24:52,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:24:52,657 INFO L87 Difference]: Start difference. First operand 23631 states and 39025 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-11 04:24:59,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:24:59,377 INFO L93 Difference]: Finished difference Result 89158 states and 147480 transitions. [2024-10-11 04:24:59,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:24:59,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 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 162 [2024-10-11 04:24:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:24:59,637 INFO L225 Difference]: With dead ends: 89158 [2024-10-11 04:24:59,637 INFO L226 Difference]: Without dead ends: 67666 [2024-10-11 04:24:59,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:24:59,717 INFO L432 NwaCegarLoop]: 4429 mSDtfsCounter, 5881 mSDsluCounter, 17400 mSDsCounter, 0 mSdLazyCounter, 3530 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5913 SdHoareTripleChecker+Valid, 21829 SdHoareTripleChecker+Invalid, 3600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-11 04:24:59,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5913 Valid, 21829 Invalid, 3600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3530 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-11 04:24:59,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67666 states.