./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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_label42+token_ring.05.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52ae6c88c77f2a2d1ba84720becde4fbcf955211b08c092cae514b34c6358b12 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 16:27:48,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:27:48,765 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:27:48,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:27:48,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:27:48,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:27:48,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:27:48,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:27:48,795 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:27:48,796 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:27:48,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:27:48,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:27:48,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:27:48,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:27:48,797 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:27:48,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:27:48,799 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:27:48,801 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:27:48,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:27:48,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:27:48,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:27:48,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:27:48,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:27:48,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:27:48,802 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:27:48,802 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:27:48,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:27:48,803 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:27:48,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:27:48,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:27:48,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:27:48,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:27:48,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:27:48,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:27:48,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:27:48,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:27:48,804 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:27:48,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:27:48,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:27:48,805 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:27:48,805 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:27:48,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:27:48,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52ae6c88c77f2a2d1ba84720becde4fbcf955211b08c092cae514b34c6358b12 [2024-11-08 16:27:49,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:27:49,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:27:49,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:27:49,052 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:27:49,053 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:27:49,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c [2024-11-08 16:27:50,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:27:50,752 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:27:50,753 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.05.cil-2.c [2024-11-08 16:27:50,803 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c2141281/2f2eca0717ac45e6ba40b64aea92b64c/FLAG9f0507be5 [2024-11-08 16:27:50,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c2141281/2f2eca0717ac45e6ba40b64aea92b64c [2024-11-08 16:27:50,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:27:50,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:27:50,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:27:50,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:27:50,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:27:50,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:27:50" (1/1) ... [2024-11-08 16:27:50,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f50565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:50, skipping insertion in model container [2024-11-08 16:27:50,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:27:50" (1/1) ... [2024-11-08 16:27:51,049 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:27:52,387 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_label42+token_ring.05.cil-2.c[378560,378573] [2024-11-08 16:27:52,417 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_label42+token_ring.05.cil-2.c[383339,383352] [2024-11-08 16:27:52,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:27:52,576 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:27:53,211 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_label42+token_ring.05.cil-2.c[378560,378573] [2024-11-08 16:27:53,222 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_label42+token_ring.05.cil-2.c[383339,383352] [2024-11-08 16:27:53,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:27:53,283 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:27:53,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53 WrapperNode [2024-11-08 16:27:53,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:27:53,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:27:53,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:27:53,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:27:53,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:53,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:53,654 INFO L138 Inliner]: procedures = 54, calls = 57, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 12819 [2024-11-08 16:27:53,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:27:53,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:27:53,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:27:53,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:27:53,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:53,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:53,717 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:53,796 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]. [2024-11-08 16:27:53,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:53,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:53,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:54,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:54,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:54,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:54,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:27:54,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:27:54,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:27:54,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:27:54,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (1/1) ... [2024-11-08 16:27:54,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:27:54,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:27:54,249 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) [2024-11-08 16:27:54,258 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 [2024-11-08 16:27:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:27:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-08 16:27:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-08 16:27:54,333 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-08 16:27:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-08 16:27:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-08 16:27:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-08 16:27:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-08 16:27:54,335 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-08 16:27:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-08 16:27:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-08 16:27:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-08 16:27:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-08 16:27:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-08 16:27:54,336 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-08 16:27:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:27:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:27:54,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:27:54,501 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:27:54,503 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:28:00,459 INFO L? ?]: Removed 1717 outVars from TransFormulas that were not future-live. [2024-11-08 16:28:00,460 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:28:00,510 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:28:00,511 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-08 16:28:00,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:28:00 BoogieIcfgContainer [2024-11-08 16:28:00,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:28:00,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:28:00,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:28:00,520 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:28:00,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:27:50" (1/3) ... [2024-11-08 16:28:00,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf435a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:28:00, skipping insertion in model container [2024-11-08 16:28:00,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:53" (2/3) ... [2024-11-08 16:28:00,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf435a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:28:00, skipping insertion in model container [2024-11-08 16:28:00,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:28:00" (3/3) ... [2024-11-08 16:28:00,525 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.05.cil-2.c [2024-11-08 16:28:00,555 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:28:00,555 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:28:00,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:28:00,643 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;@6fa5f06c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:28:00,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:28:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 2404 states, 2373 states have (on average 1.8508217446270543) internal successors, (4392), 2378 states have internal predecessors, (4392), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-08 16:28:00,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:00,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:00,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:00,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:00,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:00,671 INFO L85 PathProgramCache]: Analyzing trace with hash 528623418, now seen corresponding path program 1 times [2024-11-08 16:28:00,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:00,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807067515] [2024-11-08 16:28:00,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:00,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:00,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:01,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:01,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:01,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:01,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:01,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:01,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807067515] [2024-11-08 16:28:01,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807067515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:01,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:01,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:28:01,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423329753] [2024-11-08 16:28:01,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:01,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:28:01,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:01,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:28:01,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:28:01,126 INFO L87 Difference]: Start difference. First operand has 2404 states, 2373 states have (on average 1.8508217446270543) internal successors, (4392), 2378 states have internal predecessors, (4392), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:02,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:02,114 INFO L93 Difference]: Finished difference Result 4864 states and 8965 transitions. [2024-11-08 16:28:02,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:28:02,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:02,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:02,138 INFO L225 Difference]: With dead ends: 4864 [2024-11-08 16:28:02,138 INFO L226 Difference]: Without dead ends: 2401 [2024-11-08 16:28:02,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:28:02,150 INFO L432 NwaCegarLoop]: 4233 mSDtfsCounter, 531 mSDsluCounter, 12313 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 16546 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:02,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 16546 Invalid, 544 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:28:02,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2024-11-08 16:28:02,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 2336. [2024-11-08 16:28:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2307 states have (on average 1.8391850888599914) internal successors, (4243), 2310 states have internal predecessors, (4243), 21 states have call successors, (21), 7 states have call predecessors, (21), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 16:28:02,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4283 transitions. [2024-11-08 16:28:02,273 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4283 transitions. Word has length 102 [2024-11-08 16:28:02,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:02,274 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 4283 transitions. [2024-11-08 16:28:02,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:02,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4283 transitions. [2024-11-08 16:28:02,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:02,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:02,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:02,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:28:02,278 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:02,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:02,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1825761864, now seen corresponding path program 1 times [2024-11-08 16:28:02,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:02,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998901788] [2024-11-08 16:28:02,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:02,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:02,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:02,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:02,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:02,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:02,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:02,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:02,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:02,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998901788] [2024-11-08 16:28:02,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998901788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:02,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:02,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:28:02,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017948828] [2024-11-08 16:28:02,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:02,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:28:02,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:02,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:28:02,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:28:02,503 INFO L87 Difference]: Start difference. First operand 2336 states and 4283 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:03,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:03,573 INFO L93 Difference]: Finished difference Result 2874 states and 5126 transitions. [2024-11-08 16:28:03,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:28:03,575 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:03,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:03,588 INFO L225 Difference]: With dead ends: 2874 [2024-11-08 16:28:03,589 INFO L226 Difference]: Without dead ends: 2672 [2024-11-08 16:28:03,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:28:03,591 INFO L432 NwaCegarLoop]: 4148 mSDtfsCounter, 4735 mSDsluCounter, 12439 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 16587 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:03,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 16587 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:28:03,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2024-11-08 16:28:03,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 2541. [2024-11-08 16:28:03,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2491 states have (on average 1.8177438779606583) internal successors, (4528), 2495 states have internal predecessors, (4528), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-08 16:28:03,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 4599 transitions. [2024-11-08 16:28:03,653 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 4599 transitions. Word has length 102 [2024-11-08 16:28:03,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:03,653 INFO L471 AbstractCegarLoop]: Abstraction has 2541 states and 4599 transitions. [2024-11-08 16:28:03,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 4599 transitions. [2024-11-08 16:28:03,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:03,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:03,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:03,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:28:03,656 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:03,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:03,656 INFO L85 PathProgramCache]: Analyzing trace with hash 785390260, now seen corresponding path program 1 times [2024-11-08 16:28:03,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:03,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374379732] [2024-11-08 16:28:03,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:03,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:03,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:03,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:03,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:03,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:03,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:03,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:03,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374379732] [2024-11-08 16:28:03,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374379732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:03,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:03,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:03,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661880411] [2024-11-08 16:28:03,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:03,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:03,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:03,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:03,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:03,821 INFO L87 Difference]: Start difference. First operand 2541 states and 4599 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:05,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:05,478 INFO L93 Difference]: Finished difference Result 3354 states and 5869 transitions. [2024-11-08 16:28:05,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:28:05,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:05,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:05,490 INFO L225 Difference]: With dead ends: 3354 [2024-11-08 16:28:05,490 INFO L226 Difference]: Without dead ends: 2947 [2024-11-08 16:28:05,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:28:05,493 INFO L432 NwaCegarLoop]: 4291 mSDtfsCounter, 4748 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4760 SdHoareTripleChecker+Valid, 21236 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:05,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4760 Valid, 21236 Invalid, 1808 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 16:28:05,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2024-11-08 16:28:05,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 2733. [2024-11-08 16:28:05,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2662 states have (on average 1.7982719759579264) internal successors, (4787), 2667 states have internal predecessors, (4787), 49 states have call successors, (49), 19 states have call predecessors, (49), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-08 16:28:05,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 4888 transitions. [2024-11-08 16:28:05,574 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 4888 transitions. Word has length 102 [2024-11-08 16:28:05,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:05,575 INFO L471 AbstractCegarLoop]: Abstraction has 2733 states and 4888 transitions. [2024-11-08 16:28:05,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 4888 transitions. [2024-11-08 16:28:05,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:05,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:05,577 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:05,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:28:05,577 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:05,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:05,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1633094218, now seen corresponding path program 1 times [2024-11-08 16:28:05,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:05,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659415269] [2024-11-08 16:28:05,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:05,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:05,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:05,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:05,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:05,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:05,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:05,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:05,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:05,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659415269] [2024-11-08 16:28:05,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659415269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:05,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:05,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:05,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553622405] [2024-11-08 16:28:05,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:05,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:05,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:05,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:05,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:05,765 INFO L87 Difference]: Start difference. First operand 2733 states and 4888 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:07,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:07,254 INFO L93 Difference]: Finished difference Result 4060 states and 6958 transitions. [2024-11-08 16:28:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:28:07,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:07,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:07,267 INFO L225 Difference]: With dead ends: 4060 [2024-11-08 16:28:07,268 INFO L226 Difference]: Without dead ends: 3461 [2024-11-08 16:28:07,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:28:07,272 INFO L432 NwaCegarLoop]: 4289 mSDtfsCounter, 4742 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4754 SdHoareTripleChecker+Valid, 21234 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:07,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4754 Valid, 21234 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 16:28:07,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3461 states. [2024-11-08 16:28:07,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3461 to 3121. [2024-11-08 16:28:07,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3008 states have (on average 1.7659574468085106) internal successors, (5312), 3015 states have internal predecessors, (5312), 77 states have call successors, (77), 31 states have call predecessors, (77), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-08 16:28:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 5477 transitions. [2024-11-08 16:28:07,385 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 5477 transitions. Word has length 102 [2024-11-08 16:28:07,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:07,386 INFO L471 AbstractCegarLoop]: Abstraction has 3121 states and 5477 transitions. [2024-11-08 16:28:07,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:07,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 5477 transitions. [2024-11-08 16:28:07,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:07,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:07,388 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:07,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:28:07,389 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:07,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:07,389 INFO L85 PathProgramCache]: Analyzing trace with hash -308238024, now seen corresponding path program 1 times [2024-11-08 16:28:07,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:07,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234866329] [2024-11-08 16:28:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:07,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:07,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:07,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:07,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:07,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:07,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:07,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:07,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234866329] [2024-11-08 16:28:07,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234866329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:07,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:07,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:07,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104988736] [2024-11-08 16:28:07,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:07,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:07,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:07,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:07,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:07,578 INFO L87 Difference]: Start difference. First operand 3121 states and 5477 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:09,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:09,000 INFO L93 Difference]: Finished difference Result 5430 states and 9063 transitions. [2024-11-08 16:28:09,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:28:09,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:09,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:09,016 INFO L225 Difference]: With dead ends: 5430 [2024-11-08 16:28:09,016 INFO L226 Difference]: Without dead ends: 4443 [2024-11-08 16:28:09,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:28:09,020 INFO L432 NwaCegarLoop]: 4289 mSDtfsCounter, 4741 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4753 SdHoareTripleChecker+Valid, 21234 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:09,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4753 Valid, 21234 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 16:28:09,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2024-11-08 16:28:09,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 3898. [2024-11-08 16:28:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3898 states, 3701 states have (on average 1.7189948662523642) internal successors, (6362), 3712 states have internal predecessors, (6362), 133 states have call successors, (133), 55 states have call predecessors, (133), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-08 16:28:09,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 6661 transitions. [2024-11-08 16:28:09,181 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 6661 transitions. Word has length 102 [2024-11-08 16:28:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:09,181 INFO L471 AbstractCegarLoop]: Abstraction has 3898 states and 6661 transitions. [2024-11-08 16:28:09,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:09,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 6661 transitions. [2024-11-08 16:28:09,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:09,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:09,183 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:09,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:28:09,184 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:09,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:09,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1258519926, now seen corresponding path program 1 times [2024-11-08 16:28:09,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:09,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138922703] [2024-11-08 16:28:09,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:09,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:09,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:09,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:09,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:09,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:09,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:09,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:09,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138922703] [2024-11-08 16:28:09,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138922703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:09,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:09,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:09,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28943685] [2024-11-08 16:28:09,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:09,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:09,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:09,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:09,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:09,296 INFO L87 Difference]: Start difference. First operand 3898 states and 6661 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:10,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:10,493 INFO L93 Difference]: Finished difference Result 8169 states and 13289 transitions. [2024-11-08 16:28:10,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:28:10,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:10,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:10,520 INFO L225 Difference]: With dead ends: 8169 [2024-11-08 16:28:10,520 INFO L226 Difference]: Without dead ends: 6405 [2024-11-08 16:28:10,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:28:10,536 INFO L432 NwaCegarLoop]: 4289 mSDtfsCounter, 4740 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4752 SdHoareTripleChecker+Valid, 21234 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:10,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4752 Valid, 21234 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:28:10,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2024-11-08 16:28:10,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 5459. [2024-11-08 16:28:10,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5094 states have (on average 1.663133097762073) internal successors, (8472), 5113 states have internal predecessors, (8472), 245 states have call successors, (245), 103 states have call predecessors, (245), 118 states have return successors, (340), 258 states have call predecessors, (340), 243 states have call successors, (340) [2024-11-08 16:28:10,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 9057 transitions. [2024-11-08 16:28:10,729 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 9057 transitions. Word has length 102 [2024-11-08 16:28:10,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:10,729 INFO L471 AbstractCegarLoop]: Abstraction has 5459 states and 9057 transitions. [2024-11-08 16:28:10,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:10,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 9057 transitions. [2024-11-08 16:28:10,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:10,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:10,734 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:10,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:28:10,734 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:10,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:10,735 INFO L85 PathProgramCache]: Analyzing trace with hash 200681848, now seen corresponding path program 1 times [2024-11-08 16:28:10,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:10,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448169701] [2024-11-08 16:28:10,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:10,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:10,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:10,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:10,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:10,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:10,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:10,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:10,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448169701] [2024-11-08 16:28:10,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448169701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:10,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:10,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:10,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472770229] [2024-11-08 16:28:10,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:10,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:10,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:10,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:10,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:10,879 INFO L87 Difference]: Start difference. First operand 5459 states and 9057 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:12,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:12,288 INFO L93 Difference]: Finished difference Result 14912 states and 23693 transitions. [2024-11-08 16:28:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:28:12,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:12,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:12,325 INFO L225 Difference]: With dead ends: 14912 [2024-11-08 16:28:12,326 INFO L226 Difference]: Without dead ends: 11587 [2024-11-08 16:28:12,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:28:12,336 INFO L432 NwaCegarLoop]: 4160 mSDtfsCounter, 5004 mSDsluCounter, 16565 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5022 SdHoareTripleChecker+Valid, 20725 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:12,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5022 Valid, 20725 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:28:12,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11587 states. [2024-11-08 16:28:12,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11587 to 8548. [2024-11-08 16:28:12,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8548 states, 7863 states have (on average 1.612870405697571) internal successors, (12682), 7898 states have internal predecessors, (12682), 453 states have call successors, (453), 199 states have call predecessors, (453), 230 states have return successors, (726), 482 states have call predecessors, (726), 451 states have call successors, (726) [2024-11-08 16:28:12,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 13861 transitions. [2024-11-08 16:28:12,655 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 13861 transitions. Word has length 102 [2024-11-08 16:28:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:12,656 INFO L471 AbstractCegarLoop]: Abstraction has 8548 states and 13861 transitions. [2024-11-08 16:28:12,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:12,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 13861 transitions. [2024-11-08 16:28:12,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:12,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:12,668 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:12,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:28:12,668 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:12,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash -941820618, now seen corresponding path program 1 times [2024-11-08 16:28:12,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:12,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782955409] [2024-11-08 16:28:12,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:12,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:12,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:12,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:12,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:12,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:12,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:12,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:12,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782955409] [2024-11-08 16:28:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782955409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:12,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:12,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:12,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758134859] [2024-11-08 16:28:12,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:12,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:12,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:12,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:12,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:12,798 INFO L87 Difference]: Start difference. First operand 8548 states and 13861 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:14,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:14,595 INFO L93 Difference]: Finished difference Result 26607 states and 42003 transitions. [2024-11-08 16:28:14,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:28:14,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:14,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:14,653 INFO L225 Difference]: With dead ends: 26607 [2024-11-08 16:28:14,653 INFO L226 Difference]: Without dead ends: 20193 [2024-11-08 16:28:14,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:28:14,676 INFO L432 NwaCegarLoop]: 4286 mSDtfsCounter, 4780 mSDsluCounter, 16934 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 21220 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:14,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4791 Valid, 21220 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 16:28:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20193 states. [2024-11-08 16:28:15,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20193 to 14389. [2024-11-08 16:28:15,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14389 states, 13080 states have (on average 1.570336391437309) internal successors, (20540), 13147 states have internal predecessors, (20540), 853 states have call successors, (853), 391 states have call predecessors, (853), 454 states have return successors, (1644), 914 states have call predecessors, (1644), 851 states have call successors, (1644) [2024-11-08 16:28:15,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14389 states to 14389 states and 23037 transitions. [2024-11-08 16:28:15,468 INFO L78 Accepts]: Start accepts. Automaton has 14389 states and 23037 transitions. Word has length 102 [2024-11-08 16:28:15,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:15,468 INFO L471 AbstractCegarLoop]: Abstraction has 14389 states and 23037 transitions. [2024-11-08 16:28:15,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:15,469 INFO L276 IsEmpty]: Start isEmpty. Operand 14389 states and 23037 transitions. [2024-11-08 16:28:15,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:15,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:15,479 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:15,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:28:15,479 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:15,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:15,480 INFO L85 PathProgramCache]: Analyzing trace with hash -701580872, now seen corresponding path program 1 times [2024-11-08 16:28:15,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:15,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986034876] [2024-11-08 16:28:15,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:15,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:15,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:15,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:15,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:15,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:15,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:15,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:15,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:15,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986034876] [2024-11-08 16:28:15,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986034876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:15,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:15,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:15,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646489475] [2024-11-08 16:28:15,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:15,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:15,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:15,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:15,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:15,642 INFO L87 Difference]: Start difference. First operand 14389 states and 23037 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:18,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:18,308 INFO L93 Difference]: Finished difference Result 48446 states and 76569 transitions. [2024-11-08 16:28:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:28:18,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:18,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:18,423 INFO L225 Difference]: With dead ends: 48446 [2024-11-08 16:28:18,423 INFO L226 Difference]: Without dead ends: 36191 [2024-11-08 16:28:18,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:28:18,465 INFO L432 NwaCegarLoop]: 4287 mSDtfsCounter, 4872 mSDsluCounter, 16937 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4890 SdHoareTripleChecker+Valid, 21224 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:18,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4890 Valid, 21224 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 16:28:18,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36191 states. [2024-11-08 16:28:19,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36191 to 26358. [2024-11-08 16:28:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26358 states, 23833 states have (on average 1.5466789745311122) internal successors, (36862), 23964 states have internal predecessors, (36862), 1621 states have call successors, (1621), 775 states have call predecessors, (1621), 902 states have return successors, (3934), 1746 states have call predecessors, (3934), 1619 states have call successors, (3934) [2024-11-08 16:28:19,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26358 states to 26358 states and 42417 transitions. [2024-11-08 16:28:19,717 INFO L78 Accepts]: Start accepts. Automaton has 26358 states and 42417 transitions. Word has length 102 [2024-11-08 16:28:19,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:19,718 INFO L471 AbstractCegarLoop]: Abstraction has 26358 states and 42417 transitions. [2024-11-08 16:28:19,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:19,718 INFO L276 IsEmpty]: Start isEmpty. Operand 26358 states and 42417 transitions. [2024-11-08 16:28:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:19,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:19,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:19,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:28:19,734 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:19,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:19,734 INFO L85 PathProgramCache]: Analyzing trace with hash 137452790, now seen corresponding path program 1 times [2024-11-08 16:28:19,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:19,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171535064] [2024-11-08 16:28:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:19,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:19,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:19,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:19,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:19,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:19,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:19,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:19,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:19,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171535064] [2024-11-08 16:28:19,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171535064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:19,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:19,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:19,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743798323] [2024-11-08 16:28:19,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:19,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:19,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:19,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:19,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:19,858 INFO L87 Difference]: Start difference. First operand 26358 states and 42417 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:23,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:23,790 INFO L93 Difference]: Finished difference Result 91837 states and 147423 transitions. [2024-11-08 16:28:23,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:28:23,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:23,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:24,016 INFO L225 Difference]: With dead ends: 91837 [2024-11-08 16:28:24,017 INFO L226 Difference]: Without dead ends: 67613 [2024-11-08 16:28:24,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:28:24,094 INFO L432 NwaCegarLoop]: 4287 mSDtfsCounter, 4838 mSDsluCounter, 16937 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4856 SdHoareTripleChecker+Valid, 21224 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:24,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4856 Valid, 21224 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:28:24,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67613 states. [2024-11-08 16:28:26,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67613 to 50231. [2024-11-08 16:28:26,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50231 states, 45338 states have (on average 1.534430279235961) internal successors, (69568), 45597 states have internal predecessors, (69568), 3093 states have call successors, (3093), 1543 states have call predecessors, (3093), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-08 16:28:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50231 states to 50231 states and 82569 transitions. [2024-11-08 16:28:26,651 INFO L78 Accepts]: Start accepts. Automaton has 50231 states and 82569 transitions. Word has length 102 [2024-11-08 16:28:26,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:26,652 INFO L471 AbstractCegarLoop]: Abstraction has 50231 states and 82569 transitions. [2024-11-08 16:28:26,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:26,652 INFO L276 IsEmpty]: Start isEmpty. Operand 50231 states and 82569 transitions. [2024-11-08 16:28:26,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:26,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:26,686 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:26,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:28:26,686 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:26,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:26,687 INFO L85 PathProgramCache]: Analyzing trace with hash 164518392, now seen corresponding path program 1 times [2024-11-08 16:28:26,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:26,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706535427] [2024-11-08 16:28:26,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:26,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:26,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:26,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:26,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:26,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:26,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:26,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:26,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706535427] [2024-11-08 16:28:26,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706535427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:26,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:26,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:28:26,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513194895] [2024-11-08 16:28:26,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:26,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:28:26,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:26,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:28:26,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:28:26,815 INFO L87 Difference]: Start difference. First operand 50231 states and 82569 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:30,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:30,485 INFO L93 Difference]: Finished difference Result 110182 states and 185520 transitions. [2024-11-08 16:28:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:28:30,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:30,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:30,707 INFO L225 Difference]: With dead ends: 110182 [2024-11-08 16:28:30,707 INFO L226 Difference]: Without dead ends: 62085 [2024-11-08 16:28:30,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:28:30,815 INFO L432 NwaCegarLoop]: 4133 mSDtfsCounter, 4630 mSDsluCounter, 12297 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 16430 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:30,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4643 Valid, 16430 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:28:30,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62085 states. [2024-11-08 16:28:34,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62085 to 50231. [2024-11-08 16:28:34,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50231 states, 45338 states have (on average 1.5287617451144735) internal successors, (69311), 45597 states have internal predecessors, (69311), 3093 states have call successors, (3093), 1543 states have call predecessors, (3093), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-08 16:28:34,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50231 states to 50231 states and 82312 transitions. [2024-11-08 16:28:34,284 INFO L78 Accepts]: Start accepts. Automaton has 50231 states and 82312 transitions. Word has length 102 [2024-11-08 16:28:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:34,285 INFO L471 AbstractCegarLoop]: Abstraction has 50231 states and 82312 transitions. [2024-11-08 16:28:34,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand 50231 states and 82312 transitions. [2024-11-08 16:28:34,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:28:34,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:34,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:34,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:28:34,326 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:34,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:34,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1898622842, now seen corresponding path program 1 times [2024-11-08 16:28:34,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:34,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082219918] [2024-11-08 16:28:34,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:34,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:34,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:34,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:34,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:34,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:34,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:34,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:34,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:34,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082219918] [2024-11-08 16:28:34,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082219918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:34,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:34,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:28:34,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952764567] [2024-11-08 16:28:34,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:34,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:28:34,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:34,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:28:34,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:28:34,418 INFO L87 Difference]: Start difference. First operand 50231 states and 82312 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:39,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:28:39,418 INFO L93 Difference]: Finished difference Result 139069 states and 224602 transitions. [2024-11-08 16:28:39,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:28:39,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-11-08 16:28:39,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:28:39,725 INFO L225 Difference]: With dead ends: 139069 [2024-11-08 16:28:39,725 INFO L226 Difference]: Without dead ends: 90973 [2024-11-08 16:28:39,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:28:39,859 INFO L432 NwaCegarLoop]: 4320 mSDtfsCounter, 4961 mSDsluCounter, 12561 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4992 SdHoareTripleChecker+Valid, 16881 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:28:39,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4992 Valid, 16881 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:28:39,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90973 states. [2024-11-08 16:28:43,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90973 to 73768. [2024-11-08 16:28:43,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73768 states, 66358 states have (on average 1.511829771843636) internal successors, (100322), 66874 states have internal predecessors, (100322), 4708 states have call successors, (4708), 2317 states have call predecessors, (4708), 2700 states have return successors, (13711), 4832 states have call predecessors, (13711), 4706 states have call successors, (13711) [2024-11-08 16:28:44,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73768 states to 73768 states and 118741 transitions. [2024-11-08 16:28:44,222 INFO L78 Accepts]: Start accepts. Automaton has 73768 states and 118741 transitions. Word has length 102 [2024-11-08 16:28:44,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:28:44,223 INFO L471 AbstractCegarLoop]: Abstraction has 73768 states and 118741 transitions. [2024-11-08 16:28:44,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:28:44,223 INFO L276 IsEmpty]: Start isEmpty. Operand 73768 states and 118741 transitions. [2024-11-08 16:28:44,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-08 16:28:44,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:28:44,360 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:44,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:28:44,360 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:28:44,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:44,360 INFO L85 PathProgramCache]: Analyzing trace with hash -598768347, now seen corresponding path program 1 times [2024-11-08 16:28:44,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:44,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918100680] [2024-11-08 16:28:44,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:44,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:28:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 16:28:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:28:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:28:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 16:28:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 16:28:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-08 16:28:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-08 16:28:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 16:28:44,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:44,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918100680] [2024-11-08 16:28:44,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918100680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:28:44,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650062068] [2024-11-08 16:28:44,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:44,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:28:44,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:28:44,508 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:28:44,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:28:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:44,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 16:28:44,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:28:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 16:28:44,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:28:44,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650062068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:44,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:28:44,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-08 16:28:44,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360727435] [2024-11-08 16:28:44,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:44,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:28:44,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:44,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:28:44,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:28:44,746 INFO L87 Difference]: Start difference. First operand 73768 states and 118741 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)