./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b4ef8e9ed2cd06e3f1b2681e4efb1f48663612c7770f819d08e3f1f515d36787 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:17:25,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:17:25,124 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:17:25,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:17:25,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:17:25,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:17:25,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:17:25,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:17:25,153 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:17:25,153 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:17:25,154 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:17:25,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:17:25,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:17:25,156 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:17:25,158 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:17:25,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:17:25,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:17:25,158 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:17:25,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:17:25,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:17:25,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:17:25,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:17:25,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:17:25,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:17:25,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:17:25,161 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:17:25,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:17:25,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:17:25,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:17:25,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:17:25,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:17:25,162 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:17:25,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:17:25,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:17:25,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:17:25,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:17:25,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:17:25,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:17:25,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:17:25,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:17:25,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:17:25,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:17:25,165 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4ef8e9ed2cd06e3f1b2681e4efb1f48663612c7770f819d08e3f1f515d36787 [2024-11-11 22:17:25,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:17:25,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:17:25,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:17:25,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:17:25,381 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:17:25,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c [2024-11-11 22:17:26,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:17:27,092 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:17:27,093 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c [2024-11-11 22:17:27,132 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99f4c8fb/30e028dc3f1a4b478c38a8f1018a72fe/FLAG240097494 [2024-11-11 22:17:27,192 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99f4c8fb/30e028dc3f1a4b478c38a8f1018a72fe [2024-11-11 22:17:27,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:17:27,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:17:27,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:17:27,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:17:27,202 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:17:27,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:17:27" (1/1) ... [2024-11-11 22:17:27,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e1ee92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:27, skipping insertion in model container [2024-11-11 22:17:27,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:17:27" (1/1) ... [2024-11-11 22:17:27,326 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:17:28,620 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[382357,382370] [2024-11-11 22:17:28,639 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[383339,383352] [2024-11-11 22:17:28,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:17:28,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:17:29,553 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[382357,382370] [2024-11-11 22:17:29,556 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.14.cil.c[383339,383352] [2024-11-11 22:17:29,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:17:29,653 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:17:29,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29 WrapperNode [2024-11-11 22:17:29,653 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:17:29,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:17:29,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:17:29,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:17:29,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:29,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:29,972 INFO L138 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13237 [2024-11-11 22:17:29,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:17:29,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:17:29,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:17:29,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:17:29,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:29,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:30,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:30,203 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 22:17:30,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:30,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:30,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:30,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:30,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:30,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:30,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:17:30,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:17:30,649 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:17:30,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:17:30,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (1/1) ... [2024-11-11 22:17:30,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:17:30,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:17:30,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 22:17:30,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 22:17:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:17:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 22:17:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 22:17:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:17:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:17:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 22:17:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 22:17:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-11 22:17:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-11 22:17:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 22:17:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 22:17:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 22:17:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 22:17:30,794 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 22:17:30,794 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 22:17:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:17:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:17:30,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:17:30,971 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:17:30,978 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:17:37,049 INFO L? ?]: Removed 1759 outVars from TransFormulas that were not future-live. [2024-11-11 22:17:37,050 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:17:37,106 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:17:37,107 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-11 22:17:37,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:17:37 BoogieIcfgContainer [2024-11-11 22:17:37,107 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:17:37,109 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:17:37,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:17:37,113 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:17:37,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:17:27" (1/3) ... [2024-11-11 22:17:37,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602ce426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:17:37, skipping insertion in model container [2024-11-11 22:17:37,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:17:29" (2/3) ... [2024-11-11 22:17:37,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@602ce426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:17:37, skipping insertion in model container [2024-11-11 22:17:37,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:17:37" (3/3) ... [2024-11-11 22:17:37,115 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.14.cil.c [2024-11-11 22:17:37,129 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:17:37,129 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:17:37,225 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:17:37,231 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;@364d40ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:17:37,231 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:17:37,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 2584 states, 2546 states have (on average 1.8389630793401415) internal successors, (4682), 2551 states have internal predecessors, (4682), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-11 22:17:37,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:17:37,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:37,263 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:17:37,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:37,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:37,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1563326470, now seen corresponding path program 1 times [2024-11-11 22:17:37,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:37,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091167372] [2024-11-11 22:17:37,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:37,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:37,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:37,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:17:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:37,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:17:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:37,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:17:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:37,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:17:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:17:37,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:37,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091167372] [2024-11-11 22:17:37,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091167372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:37,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:37,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:17:37,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015514026] [2024-11-11 22:17:37,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:37,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:17:37,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:37,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:17:37,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:17:37,864 INFO L87 Difference]: Start difference. First operand has 2584 states, 2546 states have (on average 1.8389630793401415) internal successors, (4682), 2551 states have internal predecessors, (4682), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:39,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:39,528 INFO L93 Difference]: Finished difference Result 5303 states and 9710 transitions. [2024-11-11 22:17:39,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:17:39,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:17:39,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:39,549 INFO L225 Difference]: With dead ends: 5303 [2024-11-11 22:17:39,549 INFO L226 Difference]: Without dead ends: 2658 [2024-11-11 22:17:39,559 INFO L434 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 [2024-11-11 22:17:39,561 INFO L435 NwaCegarLoop]: 4390 mSDtfsCounter, 1061 mSDsluCounter, 12501 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 16891 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:39,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 16891 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:17:39,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-11-11 22:17:39,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2516. [2024-11-11 22:17:39,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2480 states have (on average 1.8221774193548388) internal successors, (4519), 2483 states have internal predecessors, (4519), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-11 22:17:39,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 4573 transitions. [2024-11-11 22:17:39,683 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 4573 transitions. Word has length 179 [2024-11-11 22:17:39,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:39,683 INFO L471 AbstractCegarLoop]: Abstraction has 2516 states and 4573 transitions. [2024-11-11 22:17:39,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:39,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 4573 transitions. [2024-11-11 22:17:39,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:17:39,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:39,687 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:17:39,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:17:39,687 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:39,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:39,688 INFO L85 PathProgramCache]: Analyzing trace with hash -60228164, now seen corresponding path program 1 times [2024-11-11 22:17:39,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:39,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435753253] [2024-11-11 22:17:39,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:39,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:39,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:39,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:17:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:39,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:17:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:39,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:17:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:39,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:17:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:17:39,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:39,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435753253] [2024-11-11 22:17:39,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435753253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:39,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:39,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:17:39,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441043931] [2024-11-11 22:17:39,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:39,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:17:39,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:39,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:17:39,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:17:39,936 INFO L87 Difference]: Start difference. First operand 2516 states and 4573 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:41,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:41,447 INFO L93 Difference]: Finished difference Result 3038 states and 5408 transitions. [2024-11-11 22:17:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:17:41,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:17:41,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:41,460 INFO L225 Difference]: With dead ends: 3038 [2024-11-11 22:17:41,460 INFO L226 Difference]: Without dead ends: 2658 [2024-11-11 22:17:41,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:17:41,463 INFO L435 NwaCegarLoop]: 4320 mSDtfsCounter, 1047 mSDsluCounter, 12298 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 16618 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:41,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 16618 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:17:41,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-11-11 22:17:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2516. [2024-11-11 22:17:41,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2480 states have (on average 1.821774193548387) internal successors, (4518), 2483 states have internal predecessors, (4518), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-11 22:17:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 4572 transitions. [2024-11-11 22:17:41,515 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 4572 transitions. Word has length 179 [2024-11-11 22:17:41,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:41,516 INFO L471 AbstractCegarLoop]: Abstraction has 2516 states and 4572 transitions. [2024-11-11 22:17:41,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:41,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 4572 transitions. [2024-11-11 22:17:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:17:41,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:41,518 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:17:41,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:17:41,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:41,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:41,519 INFO L85 PathProgramCache]: Analyzing trace with hash -630499970, now seen corresponding path program 1 times [2024-11-11 22:17:41,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:41,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622315946] [2024-11-11 22:17:41,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:41,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:41,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:41,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:17:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:41,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:17:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:41,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:17:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:41,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:17:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:41,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:17:41,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:41,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622315946] [2024-11-11 22:17:41,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622315946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:41,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:41,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:17:41,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217712499] [2024-11-11 22:17:41,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:41,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:17:41,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:41,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:17:41,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:17:41,804 INFO L87 Difference]: Start difference. First operand 2516 states and 4572 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:44,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:44,344 INFO L93 Difference]: Finished difference Result 3568 states and 6261 transitions. [2024-11-11 22:17:44,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:17:44,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:17:44,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:44,358 INFO L225 Difference]: With dead ends: 3568 [2024-11-11 22:17:44,358 INFO L226 Difference]: Without dead ends: 3193 [2024-11-11 22:17:44,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:17:44,361 INFO L435 NwaCegarLoop]: 4290 mSDtfsCounter, 5542 mSDsluCounter, 12890 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5561 SdHoareTripleChecker+Valid, 17180 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:44,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5561 Valid, 17180 Invalid, 2385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [116 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-11 22:17:44,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2024-11-11 22:17:44,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 2908. [2024-11-11 22:17:44,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2844 states have (on average 1.7907876230661042) internal successors, (5093), 2848 states have internal predecessors, (5093), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-11 22:17:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 5192 transitions. [2024-11-11 22:17:44,458 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 5192 transitions. Word has length 179 [2024-11-11 22:17:44,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:44,459 INFO L471 AbstractCegarLoop]: Abstraction has 2908 states and 5192 transitions. [2024-11-11 22:17:44,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:44,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 5192 transitions. [2024-11-11 22:17:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:17:44,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:44,462 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:17:44,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:17:44,462 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:44,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:44,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2016239750, now seen corresponding path program 1 times [2024-11-11 22:17:44,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:44,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131999579] [2024-11-11 22:17:44,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:44,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:44,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:44,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:17:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:44,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:17:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:44,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:17:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:44,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:17:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:44,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:17:44,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:44,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131999579] [2024-11-11 22:17:44,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131999579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:44,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:44,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:17:44,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034474292] [2024-11-11 22:17:44,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:44,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:17:44,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:44,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:17:44,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:17:44,805 INFO L87 Difference]: Start difference. First operand 2908 states and 5192 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:48,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:48,070 INFO L93 Difference]: Finished difference Result 4513 states and 7773 transitions. [2024-11-11 22:17:48,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:17:48,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:17:48,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:48,083 INFO L225 Difference]: With dead ends: 4513 [2024-11-11 22:17:48,083 INFO L226 Difference]: Without dead ends: 3746 [2024-11-11 22:17:48,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:17:48,088 INFO L435 NwaCegarLoop]: 4548 mSDtfsCounter, 5575 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3597 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5594 SdHoareTripleChecker+Valid, 22413 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:48,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5594 Valid, 22413 Invalid, 3662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3597 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 22:17:48,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2024-11-11 22:17:48,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3273. [2024-11-11 22:17:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3273 states, 3181 states have (on average 1.7648538195535994) internal successors, (5614), 3186 states have internal predecessors, (5614), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-11 22:17:48,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 5757 transitions. [2024-11-11 22:17:48,188 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 5757 transitions. Word has length 179 [2024-11-11 22:17:48,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:48,189 INFO L471 AbstractCegarLoop]: Abstraction has 3273 states and 5757 transitions. [2024-11-11 22:17:48,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:48,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 5757 transitions. [2024-11-11 22:17:48,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:17:48,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:48,191 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:17:48,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:17:48,191 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:48,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:48,192 INFO L85 PathProgramCache]: Analyzing trace with hash 509255932, now seen corresponding path program 1 times [2024-11-11 22:17:48,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:48,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692428343] [2024-11-11 22:17:48,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:48,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:48,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:48,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:17:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:48,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:17:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:48,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:17:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:48,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:17:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:48,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:17:48,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:48,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692428343] [2024-11-11 22:17:48,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692428343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:48,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:48,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:17:48,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018583479] [2024-11-11 22:17:48,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:48,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:17:48,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:48,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:17:48,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:17:48,437 INFO L87 Difference]: Start difference. First operand 3273 states and 5757 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:51,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:51,378 INFO L93 Difference]: Finished difference Result 5907 states and 9984 transitions. [2024-11-11 22:17:51,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:17:51,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:17:51,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:51,391 INFO L225 Difference]: With dead ends: 5907 [2024-11-11 22:17:51,392 INFO L226 Difference]: Without dead ends: 4775 [2024-11-11 22:17:51,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:17:51,395 INFO L435 NwaCegarLoop]: 4300 mSDtfsCounter, 5689 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 3058 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5708 SdHoareTripleChecker+Valid, 21455 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:51,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5708 Valid, 21455 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3058 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 22:17:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4775 states. [2024-11-11 22:17:51,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4775 to 4004. [2024-11-11 22:17:51,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4004 states, 3856 states have (on average 1.7264004149377594) internal successors, (6657), 3863 states have internal predecessors, (6657), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-11 22:17:51,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 6892 transitions. [2024-11-11 22:17:51,513 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 6892 transitions. Word has length 179 [2024-11-11 22:17:51,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:51,513 INFO L471 AbstractCegarLoop]: Abstraction has 4004 states and 6892 transitions. [2024-11-11 22:17:51,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:51,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 6892 transitions. [2024-11-11 22:17:51,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:17:51,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:51,515 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:17:51,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:17:51,516 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:51,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:51,516 INFO L85 PathProgramCache]: Analyzing trace with hash -102013126, now seen corresponding path program 1 times [2024-11-11 22:17:51,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:51,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792207022] [2024-11-11 22:17:51,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:51,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:17:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:17:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:17:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:17:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:17:51,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:51,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792207022] [2024-11-11 22:17:51,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792207022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:51,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:51,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:17:51,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58258405] [2024-11-11 22:17:51,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:51,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:17:51,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:51,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:17:51,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:17:51,739 INFO L87 Difference]: Start difference. First operand 4004 states and 6892 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:55,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:55,135 INFO L93 Difference]: Finished difference Result 8590 states and 14211 transitions. [2024-11-11 22:17:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:17:55,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:17:55,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:55,157 INFO L225 Difference]: With dead ends: 8590 [2024-11-11 22:17:55,157 INFO L226 Difference]: Without dead ends: 6727 [2024-11-11 22:17:55,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:17:55,163 INFO L435 NwaCegarLoop]: 4546 mSDtfsCounter, 5573 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3586 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5592 SdHoareTripleChecker+Valid, 22411 SdHoareTripleChecker+Invalid, 3653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:55,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5592 Valid, 22411 Invalid, 3653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3586 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-11 22:17:55,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6727 states. [2024-11-11 22:17:55,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6727 to 5467. [2024-11-11 22:17:55,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5207 states have (on average 1.67908584597657) internal successors, (8743), 5218 states have internal predecessors, (8743), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-11 22:17:55,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 9168 transitions. [2024-11-11 22:17:55,329 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 9168 transitions. Word has length 179 [2024-11-11 22:17:55,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:55,329 INFO L471 AbstractCegarLoop]: Abstraction has 5467 states and 9168 transitions. [2024-11-11 22:17:55,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:55,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 9168 transitions. [2024-11-11 22:17:55,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:17:55,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:55,332 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:17:55,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:17:55,332 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:55,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:55,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1507204804, now seen corresponding path program 1 times [2024-11-11 22:17:55,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:55,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283942309] [2024-11-11 22:17:55,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:55,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:55,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:55,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:17:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:55,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:17:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:55,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:17:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:55,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:17:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:55,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:17:55,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:55,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283942309] [2024-11-11 22:17:55,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283942309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:55,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:55,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:17:55,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200612733] [2024-11-11 22:17:55,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:55,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:17:55,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:55,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:17:55,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:17:55,574 INFO L87 Difference]: Start difference. First operand 5467 states and 9168 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:58,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:17:58,942 INFO L93 Difference]: Finished difference Result 13948 states and 22669 transitions. [2024-11-11 22:17:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:17:58,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:17:58,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:17:58,973 INFO L225 Difference]: With dead ends: 13948 [2024-11-11 22:17:58,973 INFO L226 Difference]: Without dead ends: 10622 [2024-11-11 22:17:58,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:17:58,983 INFO L435 NwaCegarLoop]: 4546 mSDtfsCounter, 5569 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3558 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5588 SdHoareTripleChecker+Valid, 22411 SdHoareTripleChecker+Invalid, 3625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-11 22:17:58,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5588 Valid, 22411 Invalid, 3625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3558 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-11 22:17:58,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2024-11-11 22:17:59,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 8407. [2024-11-11 22:17:59,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8407 states, 7923 states have (on average 1.6330935251798562) internal successors, (12939), 7942 states have internal predecessors, (12939), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-11 22:17:59,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8407 states to 8407 states and 13762 transitions. [2024-11-11 22:17:59,263 INFO L78 Accepts]: Start accepts. Automaton has 8407 states and 13762 transitions. Word has length 179 [2024-11-11 22:17:59,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:17:59,264 INFO L471 AbstractCegarLoop]: Abstraction has 8407 states and 13762 transitions. [2024-11-11 22:17:59,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:17:59,265 INFO L276 IsEmpty]: Start isEmpty. Operand 8407 states and 13762 transitions. [2024-11-11 22:17:59,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:17:59,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:17:59,269 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:17:59,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:17:59,269 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:17:59,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:17:59,270 INFO L85 PathProgramCache]: Analyzing trace with hash -60623938, now seen corresponding path program 1 times [2024-11-11 22:17:59,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:17:59,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941925171] [2024-11-11 22:17:59,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:17:59,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:17:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:17:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:17:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:17:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:17:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:17:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:17:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:17:59,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:17:59,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941925171] [2024-11-11 22:17:59,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941925171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:17:59,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:17:59,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:17:59,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347780678] [2024-11-11 22:17:59,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:17:59,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:17:59,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:17:59,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:17:59,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:17:59,503 INFO L87 Difference]: Start difference. First operand 8407 states and 13762 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:02,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:02,869 INFO L93 Difference]: Finished difference Result 24682 states and 39677 transitions. [2024-11-11 22:18:02,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:02,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:18:02,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:02,930 INFO L225 Difference]: With dead ends: 24682 [2024-11-11 22:18:02,931 INFO L226 Difference]: Without dead ends: 18416 [2024-11-11 22:18:02,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:02,955 INFO L435 NwaCegarLoop]: 4546 mSDtfsCounter, 5568 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3545 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5587 SdHoareTripleChecker+Valid, 22411 SdHoareTripleChecker+Invalid, 3612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:02,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5587 Valid, 22411 Invalid, 3612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3545 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 22:18:02,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18416 states. [2024-11-11 22:18:03,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18416 to 14300. [2024-11-11 22:18:03,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14300 states, 13368 states have (on average 1.5970227408737283) internal successors, (21349), 13403 states have internal predecessors, (21349), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-11 22:18:03,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14300 states to 14300 states and 23022 transitions. [2024-11-11 22:18:03,584 INFO L78 Accepts]: Start accepts. Automaton has 14300 states and 23022 transitions. Word has length 179 [2024-11-11 22:18:03,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:03,584 INFO L471 AbstractCegarLoop]: Abstraction has 14300 states and 23022 transitions. [2024-11-11 22:18:03,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 14300 states and 23022 transitions. [2024-11-11 22:18:03,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:18:03,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:03,592 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:03,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:18:03,593 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:03,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:03,593 INFO L85 PathProgramCache]: Analyzing trace with hash -983791364, now seen corresponding path program 1 times [2024-11-11 22:18:03,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:03,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526516800] [2024-11-11 22:18:03,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:03,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:18:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:18:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:18:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:18:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:03,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:03,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526516800] [2024-11-11 22:18:03,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526516800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:03,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:03,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:03,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024588962] [2024-11-11 22:18:03,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:03,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:03,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:03,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:03,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:03,842 INFO L87 Difference]: Start difference. First operand 14300 states and 23022 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:05,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:05,836 INFO L93 Difference]: Finished difference Result 30826 states and 49644 transitions. [2024-11-11 22:18:05,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:18:05,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:18:05,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:05,883 INFO L225 Difference]: With dead ends: 30826 [2024-11-11 22:18:05,884 INFO L226 Difference]: Without dead ends: 18667 [2024-11-11 22:18:05,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:18:05,914 INFO L435 NwaCegarLoop]: 4275 mSDtfsCounter, 5121 mSDsluCounter, 16832 mSDsCounter, 0 mSdLazyCounter, 1813 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5141 SdHoareTripleChecker+Valid, 21107 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:05,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5141 Valid, 21107 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1813 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:18:05,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18667 states. [2024-11-11 22:18:06,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18667 to 14300. [2024-11-11 22:18:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14300 states, 13368 states have (on average 1.594554159186116) internal successors, (21316), 13403 states have internal predecessors, (21316), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-11 22:18:06,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14300 states to 14300 states and 22989 transitions. [2024-11-11 22:18:06,446 INFO L78 Accepts]: Start accepts. Automaton has 14300 states and 22989 transitions. Word has length 179 [2024-11-11 22:18:06,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:06,446 INFO L471 AbstractCegarLoop]: Abstraction has 14300 states and 22989 transitions. [2024-11-11 22:18:06,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:06,447 INFO L276 IsEmpty]: Start isEmpty. Operand 14300 states and 22989 transitions. [2024-11-11 22:18:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:18:06,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:06,455 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:06,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:18:06,456 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:06,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:06,456 INFO L85 PathProgramCache]: Analyzing trace with hash -597928962, now seen corresponding path program 1 times [2024-11-11 22:18:06,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:06,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742860876] [2024-11-11 22:18:06,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:06,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:06,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:06,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:18:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:06,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:18:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:06,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:18:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:06,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:18:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:06,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:06,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:06,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742860876] [2024-11-11 22:18:06,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742860876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:06,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:06,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:06,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476609065] [2024-11-11 22:18:06,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:06,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:06,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:06,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:06,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:06,663 INFO L87 Difference]: Start difference. First operand 14300 states and 22989 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:10,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:10,882 INFO L93 Difference]: Finished difference Result 46115 states and 73651 transitions. [2024-11-11 22:18:10,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:10,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:18:10,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:10,980 INFO L225 Difference]: With dead ends: 46115 [2024-11-11 22:18:10,981 INFO L226 Difference]: Without dead ends: 33956 [2024-11-11 22:18:11,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:11,011 INFO L435 NwaCegarLoop]: 4546 mSDtfsCounter, 5560 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3507 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5579 SdHoareTripleChecker+Valid, 22411 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:11,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5579 Valid, 22411 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3507 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 22:18:11,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33956 states. [2024-11-11 22:18:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33956 to 26150. [2024-11-11 22:18:12,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26150 states, 24322 states have (on average 1.5699366828385823) internal successors, (38184), 24389 states have internal predecessors, (38184), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-11 22:18:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26150 states to 26150 states and 41719 transitions. [2024-11-11 22:18:12,179 INFO L78 Accepts]: Start accepts. Automaton has 26150 states and 41719 transitions. Word has length 179 [2024-11-11 22:18:12,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:12,179 INFO L471 AbstractCegarLoop]: Abstraction has 26150 states and 41719 transitions. [2024-11-11 22:18:12,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:12,179 INFO L276 IsEmpty]: Start isEmpty. Operand 26150 states and 41719 transitions. [2024-11-11 22:18:12,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:18:12,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:12,193 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:12,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:18:12,193 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:12,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:12,194 INFO L85 PathProgramCache]: Analyzing trace with hash -862576452, now seen corresponding path program 1 times [2024-11-11 22:18:12,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:12,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064065280] [2024-11-11 22:18:12,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:12,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:18:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:18:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:18:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:18:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:12,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:12,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064065280] [2024-11-11 22:18:12,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064065280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:12,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:12,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:12,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030926966] [2024-11-11 22:18:12,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:12,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:12,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:12,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:12,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:12,412 INFO L87 Difference]: Start difference. First operand 26150 states and 41719 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:17,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:17,456 INFO L93 Difference]: Finished difference Result 89051 states and 142475 transitions. [2024-11-11 22:18:17,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:17,457 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:18:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:17,653 INFO L225 Difference]: With dead ends: 89051 [2024-11-11 22:18:17,653 INFO L226 Difference]: Without dead ends: 65042 [2024-11-11 22:18:17,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:17,717 INFO L435 NwaCegarLoop]: 4546 mSDtfsCounter, 5559 mSDsluCounter, 17865 mSDsCounter, 0 mSdLazyCounter, 3494 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5578 SdHoareTripleChecker+Valid, 22411 SdHoareTripleChecker+Invalid, 3561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:17,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5578 Valid, 22411 Invalid, 3561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3494 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 22:18:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65042 states. [2024-11-11 22:18:19,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65042 to 49911. [2024-11-11 22:18:20,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49911 states, 46291 states have (on average 1.555593959949018) internal successors, (72010), 46422 states have internal predecessors, (72010), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2024-11-11 22:18:20,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49911 states to 49911 states and 79755 transitions. [2024-11-11 22:18:20,142 INFO L78 Accepts]: Start accepts. Automaton has 49911 states and 79755 transitions. Word has length 179 [2024-11-11 22:18:20,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:20,142 INFO L471 AbstractCegarLoop]: Abstraction has 49911 states and 79755 transitions. [2024-11-11 22:18:20,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:20,142 INFO L276 IsEmpty]: Start isEmpty. Operand 49911 states and 79755 transitions. [2024-11-11 22:18:20,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:18:20,166 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:20,166 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:20,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:18:20,167 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:20,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:20,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1068549182, now seen corresponding path program 1 times [2024-11-11 22:18:20,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:20,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879060565] [2024-11-11 22:18:20,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:20,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:20,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:20,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:18:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:20,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:18:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:20,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:18:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:20,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:18:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:20,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:20,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:20,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879060565] [2024-11-11 22:18:20,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879060565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:20,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:20,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:20,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518039639] [2024-11-11 22:18:20,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:20,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:20,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:20,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:20,372 INFO L87 Difference]: Start difference. First operand 49911 states and 79755 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:28,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:28,398 INFO L93 Difference]: Finished difference Result 174922 states and 281969 transitions. [2024-11-11 22:18:28,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:18:28,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:18:28,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:29,055 INFO L225 Difference]: With dead ends: 174922 [2024-11-11 22:18:29,055 INFO L226 Difference]: Without dead ends: 127152 [2024-11-11 22:18:29,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:18:29,156 INFO L435 NwaCegarLoop]: 4300 mSDtfsCounter, 5662 mSDsluCounter, 17155 mSDsCounter, 0 mSdLazyCounter, 2982 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5681 SdHoareTripleChecker+Valid, 21455 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:29,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5681 Valid, 21455 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2982 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 22:18:29,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127152 states. [2024-11-11 22:18:34,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127152 to 97560. [2024-11-11 22:18:34,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97560 states, 90356 states have (on average 1.5477887467351366) internal successors, (139852), 90615 states have internal predecessors, (139852), 5404 states have call successors, (5404), 1543 states have call predecessors, (5404), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2024-11-11 22:18:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97560 states to 97560 states and 157475 transitions. [2024-11-11 22:18:34,881 INFO L78 Accepts]: Start accepts. Automaton has 97560 states and 157475 transitions. Word has length 179 [2024-11-11 22:18:34,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:18:34,883 INFO L471 AbstractCegarLoop]: Abstraction has 97560 states and 157475 transitions. [2024-11-11 22:18:34,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:34,884 INFO L276 IsEmpty]: Start isEmpty. Operand 97560 states and 157475 transitions. [2024-11-11 22:18:34,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 22:18:34,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:18:34,948 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:18:34,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:18:34,948 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:18:34,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:18:34,949 INFO L85 PathProgramCache]: Analyzing trace with hash -254629764, now seen corresponding path program 1 times [2024-11-11 22:18:34,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:18:34,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818269737] [2024-11-11 22:18:34,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:18:34,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:18:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:35,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:18:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:35,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 22:18:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:35,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 22:18:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:35,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 22:18:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:35,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-11 22:18:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:18:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:18:35,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:18:35,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818269737] [2024-11-11 22:18:35,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818269737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:18:35,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:18:35,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:18:35,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512377635] [2024-11-11 22:18:35,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:18:35,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:18:35,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:18:35,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:18:35,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:18:35,282 INFO L87 Difference]: Start difference. First operand 97560 states and 157475 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:18:42,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:18:42,642 INFO L93 Difference]: Finished difference Result 224442 states and 369619 transitions. [2024-11-11 22:18:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 22:18:42,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 179 [2024-11-11 22:18:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:18:43,152 INFO L225 Difference]: With dead ends: 224442 [2024-11-11 22:18:43,153 INFO L226 Difference]: Without dead ends: 129023 [2024-11-11 22:18:43,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:18:43,354 INFO L435 NwaCegarLoop]: 4275 mSDtfsCounter, 5295 mSDsluCounter, 12663 mSDsCounter, 0 mSdLazyCounter, 1606 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5315 SdHoareTripleChecker+Valid, 16938 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:18:43,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5315 Valid, 16938 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1606 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:18:43,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129023 states.