./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.12.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_label46+token_ring.12.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 7337e3db834e57315ee73ddaf50a0d2f544bd41ddf080ac302a0a29c062196b8 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 16:37:13,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:37:13,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:37:13,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:37:13,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:37:13,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:37:13,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:37:13,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:37:13,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:37:13,793 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:37:13,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:37:13,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:37:13,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:37:13,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:37:13,795 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:37:13,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:37:13,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:37:13,797 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:37:13,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:37:13,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:37:13,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:37:13,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:37:13,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:37:13,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:37:13,803 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:37:13,803 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:37:13,803 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:37:13,803 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:37:13,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:37:13,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:37:13,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:37:13,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:37:13,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:37:13,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:37:13,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:37:13,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:37:13,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:37:13,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:37:13,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:37:13,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:37:13,810 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:37:13,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:37:13,811 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7337e3db834e57315ee73ddaf50a0d2f544bd41ddf080ac302a0a29c062196b8 [2024-11-08 16:37:14,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:37:14,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:37:14,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:37:14,081 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:37:14,082 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:37:14,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.12.cil-2.c [2024-11-08 16:37:15,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:37:16,176 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:37:16,177 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.12.cil-2.c [2024-11-08 16:37:16,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/284b4c4a9/c95da67756b645d9bcbfb4b2b2faec3a/FLAGa2c351672 [2024-11-08 16:37:16,238 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/284b4c4a9/c95da67756b645d9bcbfb4b2b2faec3a [2024-11-08 16:37:16,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:37:16,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:37:16,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:37:16,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:37:16,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:37:16,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:37:16" (1/1) ... [2024-11-08 16:37:16,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a066d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:16, skipping insertion in model container [2024-11-08 16:37:16,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:37:16" (1/1) ... [2024-11-08 16:37:16,404 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:37:18,071 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.12.cil-2.c[382357,382370] [2024-11-08 16:37:18,096 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.12.cil-2.c[383339,383352] [2024-11-08 16:37:18,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:37:18,399 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:37:19,195 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.12.cil-2.c[382357,382370] [2024-11-08 16:37:19,200 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.12.cil-2.c[383339,383352] [2024-11-08 16:37:19,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:37:19,301 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:37:19,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19 WrapperNode [2024-11-08 16:37:19,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:37:19,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:37:19,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:37:19,303 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:37:19,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:19,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:19,784 INFO L138 Inliner]: procedures = 68, calls = 77, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 13233 [2024-11-08 16:37:19,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:37:19,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:37:19,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:37:19,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:37:19,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:19,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:19,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:20,082 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 16:37:20,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:20,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:20,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:20,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:20,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:20,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:20,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:37:20,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:37:20,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:37:20,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:37:20,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (1/1) ... [2024-11-08 16:37:20,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:37:20,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:37:20,479 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 16:37:20,480 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 16:37:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:37:20,514 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-08 16:37:20,514 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-08 16:37:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-08 16:37:20,515 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-08 16:37:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-08 16:37:20,515 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-08 16:37:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-08 16:37:20,515 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-08 16:37:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-08 16:37:20,515 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-08 16:37:20,515 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-08 16:37:20,515 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-08 16:37:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:37:20,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:37:20,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:37:20,652 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:37:20,654 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:37:28,581 INFO L? ?]: Removed 1755 outVars from TransFormulas that were not future-live. [2024-11-08 16:37:28,582 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:37:28,649 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:37:28,650 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-08 16:37:28,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:37:28 BoogieIcfgContainer [2024-11-08 16:37:28,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:37:28,653 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:37:28,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:37:28,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:37:28,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:37:16" (1/3) ... [2024-11-08 16:37:28,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acbc9f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:37:28, skipping insertion in model container [2024-11-08 16:37:28,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:37:19" (2/3) ... [2024-11-08 16:37:28,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2acbc9f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:37:28, skipping insertion in model container [2024-11-08 16:37:28,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:37:28" (3/3) ... [2024-11-08 16:37:28,662 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.12.cil-2.c [2024-11-08 16:37:28,678 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:37:28,679 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:37:28,811 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:37:28,820 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;@3bc32d25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:37:28,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:37:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 2578 states, 2543 states have (on average 1.8387731026346834) internal successors, (4676), 2546 states have internal predecessors, (4676), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-08 16:37:28,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:37:28,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:28,855 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:28,856 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:28,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:28,862 INFO L85 PathProgramCache]: Analyzing trace with hash -80490959, now seen corresponding path program 1 times [2024-11-08 16:37:28,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:28,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960230590] [2024-11-08 16:37:28,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:28,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:29,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:29,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:37:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:29,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:37:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:29,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:37:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:29,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:37:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:29,507 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 16:37:29,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:29,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960230590] [2024-11-08 16:37:29,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960230590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:29,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:29,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:37:29,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417696031] [2024-11-08 16:37:29,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:29,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:37:29,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:29,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:37:29,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:37:29,551 INFO L87 Difference]: Start difference. First operand has 2578 states, 2543 states have (on average 1.8387731026346834) internal successors, (4676), 2546 states have internal predecessors, (4676), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:31,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:31,685 INFO L93 Difference]: Finished difference Result 5292 states and 9690 transitions. [2024-11-08 16:37:31,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:37:31,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:37:31,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:31,721 INFO L225 Difference]: With dead ends: 5292 [2024-11-08 16:37:31,721 INFO L226 Difference]: Without dead ends: 2653 [2024-11-08 16:37:31,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:37:31,737 INFO L432 NwaCegarLoop]: 4383 mSDtfsCounter, 1051 mSDsluCounter, 12491 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 16874 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:31,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 16874 Invalid, 1092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 16:37:31,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2024-11-08 16:37:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2511. [2024-11-08 16:37:31,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2477 states have (on average 1.8219620508679855) internal successors, (4513), 2479 states have internal predecessors, (4513), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-08 16:37:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 4565 transitions. [2024-11-08 16:37:31,901 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 4565 transitions. Word has length 178 [2024-11-08 16:37:31,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:31,902 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 4565 transitions. [2024-11-08 16:37:31,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:31,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 4565 transitions. [2024-11-08 16:37:31,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:37:31,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:31,907 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:31,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:37:31,908 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:31,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:31,908 INFO L85 PathProgramCache]: Analyzing trace with hash -170551249, now seen corresponding path program 1 times [2024-11-08 16:37:31,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:31,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607180523] [2024-11-08 16:37:31,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:31,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:37:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:37:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:37:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:37:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:32,217 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 16:37:32,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:32,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607180523] [2024-11-08 16:37:32,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607180523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:32,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:32,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:37:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494319006] [2024-11-08 16:37:32,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:32,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:37:32,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:32,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:37:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:37:32,225 INFO L87 Difference]: Start difference. First operand 2511 states and 4565 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:34,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:34,237 INFO L93 Difference]: Finished difference Result 3028 states and 5392 transitions. [2024-11-08 16:37:34,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:37:34,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:37:34,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:34,250 INFO L225 Difference]: With dead ends: 3028 [2024-11-08 16:37:34,250 INFO L226 Difference]: Without dead ends: 2653 [2024-11-08 16:37:34,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:37:34,253 INFO L432 NwaCegarLoop]: 4313 mSDtfsCounter, 1037 mSDsluCounter, 12288 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 16601 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:34,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 16601 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 16:37:34,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2024-11-08 16:37:34,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2511. [2024-11-08 16:37:34,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2477 states have (on average 1.821558336697618) internal successors, (4512), 2479 states have internal predecessors, (4512), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-08 16:37:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 4564 transitions. [2024-11-08 16:37:34,321 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 4564 transitions. Word has length 178 [2024-11-08 16:37:34,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:34,322 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 4564 transitions. [2024-11-08 16:37:34,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:34,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 4564 transitions. [2024-11-08 16:37:34,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:37:34,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:34,328 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:34,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:37:34,328 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:34,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:34,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1574420435, now seen corresponding path program 1 times [2024-11-08 16:37:34,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:34,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933861799] [2024-11-08 16:37:34,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:34,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:34,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:34,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:37:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:34,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:37:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:34,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:37:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:34,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:37:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:34,664 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 16:37:34,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:34,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933861799] [2024-11-08 16:37:34,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933861799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:34,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:34,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:37:34,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476499205] [2024-11-08 16:37:34,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:34,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:37:34,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:34,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:37:34,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:37:34,671 INFO L87 Difference]: Start difference. First operand 2511 states and 4564 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:37,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:37,766 INFO L93 Difference]: Finished difference Result 3553 states and 6237 transitions. [2024-11-08 16:37:37,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:37:37,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:37:37,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:37,781 INFO L225 Difference]: With dead ends: 3553 [2024-11-08 16:37:37,781 INFO L226 Difference]: Without dead ends: 3183 [2024-11-08 16:37:37,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:37:37,788 INFO L432 NwaCegarLoop]: 4283 mSDtfsCounter, 5530 mSDsluCounter, 12868 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5549 SdHoareTripleChecker+Valid, 17151 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:37,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5549 Valid, 17151 Invalid, 2372 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 16:37:37,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states. [2024-11-08 16:37:37,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 2900. [2024-11-08 16:37:37,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2838 states have (on average 1.7903453136011276) internal successors, (5081), 2841 states have internal predecessors, (5081), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-08 16:37:37,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 5178 transitions. [2024-11-08 16:37:37,923 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 5178 transitions. Word has length 178 [2024-11-08 16:37:37,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:37,923 INFO L471 AbstractCegarLoop]: Abstraction has 2900 states and 5178 transitions. [2024-11-08 16:37:37,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:37,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 5178 transitions. [2024-11-08 16:37:37,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:37:37,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:37,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:37,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:37:37,927 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:37,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:37,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1844561585, now seen corresponding path program 1 times [2024-11-08 16:37:37,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:37,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344692281] [2024-11-08 16:37:37,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:37,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:38,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:38,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:37:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:38,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:37:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:38,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:37:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:38,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:37:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:38,336 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 16:37:38,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:38,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344692281] [2024-11-08 16:37:38,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344692281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:38,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:38,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:38,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493156417] [2024-11-08 16:37:38,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:38,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:38,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:38,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:38,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:38,340 INFO L87 Difference]: Start difference. First operand 2900 states and 5178 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:42,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:42,243 INFO L93 Difference]: Finished difference Result 4492 states and 7737 transitions. [2024-11-08 16:37:42,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:37:42,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:37:42,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:42,262 INFO L225 Difference]: With dead ends: 4492 [2024-11-08 16:37:42,262 INFO L226 Difference]: Without dead ends: 3733 [2024-11-08 16:37:42,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:37:42,267 INFO L432 NwaCegarLoop]: 4534 mSDtfsCounter, 5565 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3582 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5584 SdHoareTripleChecker+Valid, 22352 SdHoareTripleChecker+Invalid, 3643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:42,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5584 Valid, 22352 Invalid, 3643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 3582 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 16:37:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3733 states. [2024-11-08 16:37:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3733 to 3262. [2024-11-08 16:37:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 3172 states have (on average 1.764186633039092) internal successors, (5596), 3176 states have internal predecessors, (5596), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-08 16:37:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 5737 transitions. [2024-11-08 16:37:42,394 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 5737 transitions. Word has length 178 [2024-11-08 16:37:42,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:42,397 INFO L471 AbstractCegarLoop]: Abstraction has 3262 states and 5737 transitions. [2024-11-08 16:37:42,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:42,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 5737 transitions. [2024-11-08 16:37:42,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:37:42,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:42,402 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:42,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:37:42,402 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:42,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:42,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1233292527, now seen corresponding path program 1 times [2024-11-08 16:37:42,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:42,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614574908] [2024-11-08 16:37:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:42,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:42,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:42,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:37:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:42,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:37:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:42,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:37:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:42,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:37:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:42,704 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 16:37:42,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:42,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614574908] [2024-11-08 16:37:42,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614574908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:42,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:42,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:42,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612892724] [2024-11-08 16:37:42,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:42,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:42,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:42,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:42,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:42,710 INFO L87 Difference]: Start difference. First operand 3262 states and 5737 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:46,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:46,065 INFO L93 Difference]: Finished difference Result 5877 states and 9930 transitions. [2024-11-08 16:37:46,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:37:46,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:37:46,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:46,086 INFO L225 Difference]: With dead ends: 5877 [2024-11-08 16:37:46,086 INFO L226 Difference]: Without dead ends: 4756 [2024-11-08 16:37:46,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:37:46,092 INFO L432 NwaCegarLoop]: 4293 mSDtfsCounter, 5677 mSDsluCounter, 17128 mSDsCounter, 0 mSdLazyCounter, 3050 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5696 SdHoareTripleChecker+Valid, 21421 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 3050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:46,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5696 Valid, 21421 Invalid, 3149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 3050 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 16:37:46,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2024-11-08 16:37:46,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 3987. [2024-11-08 16:37:46,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3987 states, 3841 states have (on average 1.72533194480604) internal successors, (6627), 3847 states have internal predecessors, (6627), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-08 16:37:46,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 6860 transitions. [2024-11-08 16:37:46,242 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 6860 transitions. Word has length 178 [2024-11-08 16:37:46,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:46,242 INFO L471 AbstractCegarLoop]: Abstraction has 3987 states and 6860 transitions. [2024-11-08 16:37:46,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:46,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 6860 transitions. [2024-11-08 16:37:46,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:37:46,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:46,245 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:46,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:37:46,245 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:46,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:46,246 INFO L85 PathProgramCache]: Analyzing trace with hash -171899151, now seen corresponding path program 1 times [2024-11-08 16:37:46,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:46,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574376403] [2024-11-08 16:37:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:46,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:46,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:46,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:37:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:46,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:37:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:46,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:37:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:46,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:37:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:46,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:46,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:46,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574376403] [2024-11-08 16:37:46,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574376403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:46,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:46,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:46,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196346545] [2024-11-08 16:37:46,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:46,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:46,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:46,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:46,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:46,548 INFO L87 Difference]: Start difference. First operand 3987 states and 6860 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:50,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:50,321 INFO L93 Difference]: Finished difference Result 8542 states and 14121 transitions. [2024-11-08 16:37:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:37:50,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:37:50,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:50,357 INFO L225 Difference]: With dead ends: 8542 [2024-11-08 16:37:50,357 INFO L226 Difference]: Without dead ends: 6696 [2024-11-08 16:37:50,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:37:50,366 INFO L432 NwaCegarLoop]: 4532 mSDtfsCounter, 5563 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3571 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5582 SdHoareTripleChecker+Valid, 22350 SdHoareTripleChecker+Invalid, 3634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:50,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5582 Valid, 22350 Invalid, 3634 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3571 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 16:37:50,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6696 states. [2024-11-08 16:37:50,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6696 to 5438. [2024-11-08 16:37:50,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5180 states have (on average 1.6774131274131274) internal successors, (8689), 5190 states have internal predecessors, (8689), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-08 16:37:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 9112 transitions. [2024-11-08 16:37:50,602 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 9112 transitions. Word has length 178 [2024-11-08 16:37:50,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:50,603 INFO L471 AbstractCegarLoop]: Abstraction has 5438 states and 9112 transitions. [2024-11-08 16:37:50,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:50,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 9112 transitions. [2024-11-08 16:37:50,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:37:50,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:50,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:50,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:37:50,607 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:50,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:50,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1722434735, now seen corresponding path program 1 times [2024-11-08 16:37:50,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:50,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172172277] [2024-11-08 16:37:50,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:50,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:50,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:50,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:37:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:50,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:37:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:50,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:37:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:50,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:37:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:50,912 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 16:37:50,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:50,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172172277] [2024-11-08 16:37:50,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172172277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:50,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:50,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433684851] [2024-11-08 16:37:50,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:50,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:50,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:50,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:50,915 INFO L87 Difference]: Start difference. First operand 5438 states and 9112 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:54,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:54,880 INFO L93 Difference]: Finished difference Result 13864 states and 22507 transitions. [2024-11-08 16:37:54,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:37:54,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:37:54,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:54,919 INFO L225 Difference]: With dead ends: 13864 [2024-11-08 16:37:54,919 INFO L226 Difference]: Without dead ends: 10567 [2024-11-08 16:37:54,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:37:54,935 INFO L432 NwaCegarLoop]: 4532 mSDtfsCounter, 5559 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3543 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5578 SdHoareTripleChecker+Valid, 22350 SdHoareTripleChecker+Invalid, 3606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:54,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5578 Valid, 22350 Invalid, 3606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3543 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 16:37:54,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10567 states. [2024-11-08 16:37:55,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10567 to 8354. [2024-11-08 16:37:55,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8354 states, 7872 states have (on average 1.630716463414634) internal successors, (12837), 7890 states have internal predecessors, (12837), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-08 16:37:55,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8354 states to 8354 states and 13658 transitions. [2024-11-08 16:37:55,321 INFO L78 Accepts]: Start accepts. Automaton has 8354 states and 13658 transitions. Word has length 178 [2024-11-08 16:37:55,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:55,322 INFO L471 AbstractCegarLoop]: Abstraction has 8354 states and 13658 transitions. [2024-11-08 16:37:55,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:55,325 INFO L276 IsEmpty]: Start isEmpty. Operand 8354 states and 13658 transitions. [2024-11-08 16:37:55,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:37:55,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:55,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:55,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:37:55,332 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:55,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:55,332 INFO L85 PathProgramCache]: Analyzing trace with hash 799267309, now seen corresponding path program 1 times [2024-11-08 16:37:55,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:55,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344718374] [2024-11-08 16:37:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:55,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:55,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:37:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:55,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:37:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:55,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:37:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:55,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:37:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:55,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:37:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:55,604 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 16:37:55,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:55,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344718374] [2024-11-08 16:37:55,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344718374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:55,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:55,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:55,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729926156] [2024-11-08 16:37:55,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:55,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:55,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:55,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:55,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:55,607 INFO L87 Difference]: Start difference. First operand 8354 states and 13658 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:37:59,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:59,441 INFO L93 Difference]: Finished difference Result 24526 states and 39371 transitions. [2024-11-08 16:37:59,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:37:59,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:37:59,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:59,515 INFO L225 Difference]: With dead ends: 24526 [2024-11-08 16:37:59,516 INFO L226 Difference]: Without dead ends: 18313 [2024-11-08 16:37:59,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:37:59,544 INFO L432 NwaCegarLoop]: 4532 mSDtfsCounter, 5558 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3530 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5577 SdHoareTripleChecker+Valid, 22350 SdHoareTripleChecker+Invalid, 3593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:59,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5577 Valid, 22350 Invalid, 3593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3530 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 16:37:59,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18313 states. [2024-11-08 16:38:00,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18313 to 14199. [2024-11-08 16:38:00,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14199 states, 13269 states have (on average 1.5940161278167158) internal successors, (21151), 13303 states have internal predecessors, (21151), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-08 16:38:00,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14199 states to 14199 states and 22822 transitions. [2024-11-08 16:38:00,362 INFO L78 Accepts]: Start accepts. Automaton has 14199 states and 22822 transitions. Word has length 178 [2024-11-08 16:38:00,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:00,363 INFO L471 AbstractCegarLoop]: Abstraction has 14199 states and 22822 transitions. [2024-11-08 16:38:00,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:38:00,363 INFO L276 IsEmpty]: Start isEmpty. Operand 14199 states and 22822 transitions. [2024-11-08 16:38:00,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:38:00,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:00,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:00,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:38:00,373 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:38:00,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:00,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1185129711, now seen corresponding path program 1 times [2024-11-08 16:38:00,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:00,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944418747] [2024-11-08 16:38:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:00,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:00,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:38:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:00,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:38:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:00,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:38:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:00,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:38:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:00,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:38:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:00,653 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 16:38:00,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:00,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944418747] [2024-11-08 16:38:00,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944418747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:00,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:00,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:38:00,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24174076] [2024-11-08 16:38:00,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:00,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:38:00,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:00,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:38:00,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:38:00,657 INFO L87 Difference]: Start difference. First operand 14199 states and 22822 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:38:03,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:38:03,016 INFO L93 Difference]: Finished difference Result 30624 states and 49244 transitions. [2024-11-08 16:38:03,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:38:03,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:38:03,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:38:03,079 INFO L225 Difference]: With dead ends: 30624 [2024-11-08 16:38:03,079 INFO L226 Difference]: Without dead ends: 18566 [2024-11-08 16:38:03,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:38:03,120 INFO L432 NwaCegarLoop]: 4268 mSDtfsCounter, 5111 mSDsluCounter, 16812 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5131 SdHoareTripleChecker+Valid, 21080 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:38:03,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5131 Valid, 21080 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 16:38:03,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18566 states. [2024-11-08 16:38:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18566 to 14199. [2024-11-08 16:38:03,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14199 states, 13269 states have (on average 1.5915291280428066) internal successors, (21118), 13303 states have internal predecessors, (21118), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-08 16:38:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14199 states to 14199 states and 22789 transitions. [2024-11-08 16:38:03,808 INFO L78 Accepts]: Start accepts. Automaton has 14199 states and 22789 transitions. Word has length 178 [2024-11-08 16:38:03,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:03,808 INFO L471 AbstractCegarLoop]: Abstraction has 14199 states and 22789 transitions. [2024-11-08 16:38:03,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:38:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 14199 states and 22789 transitions. [2024-11-08 16:38:03,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:38:03,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:03,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:03,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:38:03,820 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:38:03,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:03,821 INFO L85 PathProgramCache]: Analyzing trace with hash 920482221, now seen corresponding path program 1 times [2024-11-08 16:38:03,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:03,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807367353] [2024-11-08 16:38:03,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:03,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:03,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:38:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:04,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:38:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:04,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:38:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:04,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:38:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:04,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:38:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:04,108 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 16:38:04,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:04,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807367353] [2024-11-08 16:38:04,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807367353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:04,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:04,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:38:04,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696806439] [2024-11-08 16:38:04,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:04,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:38:04,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:04,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:38:04,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:38:04,110 INFO L87 Difference]: Start difference. First operand 14199 states and 22789 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:38:08,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:38:08,776 INFO L93 Difference]: Finished difference Result 45815 states and 73057 transitions. [2024-11-08 16:38:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:38:08,776 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:38:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:38:08,894 INFO L225 Difference]: With dead ends: 45815 [2024-11-08 16:38:08,894 INFO L226 Difference]: Without dead ends: 33757 [2024-11-08 16:38:08,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:38:08,931 INFO L432 NwaCegarLoop]: 4532 mSDtfsCounter, 5550 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3492 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5569 SdHoareTripleChecker+Valid, 22350 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:38:08,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5569 Valid, 22350 Invalid, 3555 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [63 Valid, 3492 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 16:38:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33757 states. [2024-11-08 16:38:10,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33757 to 25953. [2024-11-08 16:38:10,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25953 states, 24127 states have (on average 1.5664608115389398) internal successors, (37794), 24193 states have internal predecessors, (37794), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-08 16:38:10,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25953 states to 25953 states and 41327 transitions. [2024-11-08 16:38:10,231 INFO L78 Accepts]: Start accepts. Automaton has 25953 states and 41327 transitions. Word has length 178 [2024-11-08 16:38:10,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:10,232 INFO L471 AbstractCegarLoop]: Abstraction has 25953 states and 41327 transitions. [2024-11-08 16:38:10,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:38:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 25953 states and 41327 transitions. [2024-11-08 16:38:10,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:38:10,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:10,246 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:10,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:38:10,247 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:38:10,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1443359441, now seen corresponding path program 1 times [2024-11-08 16:38:10,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:10,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991529436] [2024-11-08 16:38:10,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:10,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:10,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:38:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:10,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:38:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:10,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:38:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:10,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:38:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:10,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:38:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:10,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:10,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:10,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991529436] [2024-11-08 16:38:10,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991529436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:10,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:10,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:38:10,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563201540] [2024-11-08 16:38:10,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:10,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:38:10,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:10,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:38:10,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:38:10,503 INFO L87 Difference]: Start difference. First operand 25953 states and 41327 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:38:16,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:38:16,266 INFO L93 Difference]: Finished difference Result 88463 states and 141305 transitions. [2024-11-08 16:38:16,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:38:16,266 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 178 [2024-11-08 16:38:16,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:38:16,529 INFO L225 Difference]: With dead ends: 88463 [2024-11-08 16:38:16,529 INFO L226 Difference]: Without dead ends: 64651 [2024-11-08 16:38:16,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:38:16,619 INFO L432 NwaCegarLoop]: 4532 mSDtfsCounter, 5549 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 3479 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5568 SdHoareTripleChecker+Valid, 22350 SdHoareTripleChecker+Invalid, 3542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:38:16,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5568 Valid, 22350 Invalid, 3542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3479 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 16:38:16,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64651 states. [2024-11-08 16:38:19,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64651 to 49522. [2024-11-08 16:38:19,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49522 states, 45904 states have (on average 1.5518473335657024) internal successors, (71236), 46034 states have internal predecessors, (71236), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2024-11-08 16:38:19,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49522 states to 49522 states and 78979 transitions. [2024-11-08 16:38:19,317 INFO L78 Accepts]: Start accepts. Automaton has 49522 states and 78979 transitions. Word has length 178 [2024-11-08 16:38:19,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:19,317 INFO L471 AbstractCegarLoop]: Abstraction has 49522 states and 78979 transitions. [2024-11-08 16:38:19,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:38:19,318 INFO L276 IsEmpty]: Start isEmpty. Operand 49522 states and 78979 transitions. [2024-11-08 16:38:19,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 16:38:19,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:19,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:19,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:38:19,340 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:38:19,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:19,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1528428909, now seen corresponding path program 1 times [2024-11-08 16:38:19,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:19,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904164573] [2024-11-08 16:38:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:19,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:19,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 16:38:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:19,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:38:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:19,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:38:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:19,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 16:38:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:19,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 16:38:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:19,607 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 16:38:19,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:19,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904164573] [2024-11-08 16:38:19,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904164573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:38:19,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:38:19,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:38:19,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132173676] [2024-11-08 16:38:19,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:38:19,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:38:19,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:19,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:38:19,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:38:19,609 INFO L87 Difference]: Start difference. First operand 49522 states and 78979 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)