./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.09.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_label49+token_ring.09.cil-1.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 9c44d114d56c1766d1cbfa8e225f5145dcce7e8e615df451e987409645be250c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:29:55,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:29:55,486 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:29:55,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:29:55,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:29:55,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:29:55,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:29:55,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:29:55,533 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:29:55,533 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:29:55,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:29:55,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:29:55,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:29:55,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:29:55,537 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:29:55,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:29:55,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:29:55,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:29:55,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:29:55,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:29:55,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:29:55,542 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:29:55,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:29:55,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:29:55,543 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:29:55,543 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:29:55,543 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:29:55,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:29:55,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:29:55,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:29:55,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:29:55,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:29:55,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:29:55,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:29:55,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:29:55,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:29:55,546 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:29:55,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:29:55,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:29:55,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:29:55,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:29:55,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:29:55,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c44d114d56c1766d1cbfa8e225f5145dcce7e8e615df451e987409645be250c [2024-11-22 03:29:55,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:29:55,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:29:55,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:29:55,872 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:29:55,872 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:29:55,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.09.cil-1.c [2024-11-22 03:29:57,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:29:57,948 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:29:57,949 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.09.cil-1.c [2024-11-22 03:29:58,015 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3581d7901/90249b8ddd0f470da4e7ca1b609a8798/FLAG3f776a114 [2024-11-22 03:29:58,033 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3581d7901/90249b8ddd0f470da4e7ca1b609a8798 [2024-11-22 03:29:58,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:29:58,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:29:58,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:29:58,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:29:58,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:29:58,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:29:58" (1/1) ... [2024-11-22 03:29:58,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3169e99a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:29:58, skipping insertion in model container [2024-11-22 03:29:58,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:29:58" (1/1) ... [2024-11-22 03:29:58,212 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:29:59,816 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_label49+token_ring.09.cil-1.c[380593,380606] [2024-11-22 03:29:59,841 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_label49+token_ring.09.cil-1.c[383339,383352] [2024-11-22 03:30:00,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:30:00,090 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:30:00,859 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_label49+token_ring.09.cil-1.c[380593,380606] [2024-11-22 03:30:00,865 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_label49+token_ring.09.cil-1.c[383339,383352] [2024-11-22 03:30:00,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:30:00,994 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:30:00,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00 WrapperNode [2024-11-22 03:30:00,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:30:00,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:30:00,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:30:00,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:30:01,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:01,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:01,561 INFO L138 Inliner]: procedures = 62, calls = 68, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 13053 [2024-11-22 03:30:01,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:30:01,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:30:01,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:30:01,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:30:01,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:01,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:01,633 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:01,727 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]. [2024-11-22 03:30:01,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:01,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:02,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:02,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:02,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:02,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:02,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:30:02,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:30:02,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:30:02,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:30:02,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (1/1) ... [2024-11-22 03:30:02,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:30:02,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:30:02,533 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) [2024-11-22 03:30:02,545 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 [2024-11-22 03:30:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:30:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 03:30:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 03:30:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 03:30:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 03:30:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 03:30:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 03:30:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 03:30:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 03:30:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 03:30:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 03:30:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 03:30:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 03:30:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:30:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:30:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:30:02,813 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:30:02,816 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:30:11,159 INFO L? ?]: Removed 1737 outVars from TransFormulas that were not future-live. [2024-11-22 03:30:11,160 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:30:11,230 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:30:11,230 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-22 03:30:11,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:30:11 BoogieIcfgContainer [2024-11-22 03:30:11,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:30:11,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:30:11,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:30:11,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:30:11,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:29:58" (1/3) ... [2024-11-22 03:30:11,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538ab1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:30:11, skipping insertion in model container [2024-11-22 03:30:11,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:30:00" (2/3) ... [2024-11-22 03:30:11,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538ab1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:30:11, skipping insertion in model container [2024-11-22 03:30:11,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:30:11" (3/3) ... [2024-11-22 03:30:11,244 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.09.cil-1.c [2024-11-22 03:30:11,260 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:30:11,261 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:30:11,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:30:11,417 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;@43410cce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:30:11,418 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:30:11,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 2500 states, 2468 states have (on average 1.8435980551053484) internal successors, (4550), 2471 states have internal predecessors, (4550), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 03:30:11,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:11,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:11,447 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] [2024-11-22 03:30:11,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:11,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:11,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2141989661, now seen corresponding path program 1 times [2024-11-22 03:30:11,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:11,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063693762] [2024-11-22 03:30:11,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:11,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:11,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:11,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063693762] [2024-11-22 03:30:11,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063693762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:11,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:11,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:30:11,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307750229] [2024-11-22 03:30:11,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:11,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:30:11,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:11,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:30:11,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:30:11,939 INFO L87 Difference]: Start difference. First operand has 2500 states, 2468 states have (on average 1.8435980551053484) internal successors, (4550), 2471 states have internal predecessors, (4550), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:12,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:12,135 INFO L93 Difference]: Finished difference Result 4992 states and 9177 transitions. [2024-11-22 03:30:12,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:30:12,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (5), 1 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 145 [2024-11-22 03:30:12,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:12,169 INFO L225 Difference]: With dead ends: 4992 [2024-11-22 03:30:12,170 INFO L226 Difference]: Without dead ends: 2433 [2024-11-22 03:30:12,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:30:12,188 INFO L432 NwaCegarLoop]: 4507 mSDtfsCounter, 478 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 8529 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:12,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 8529 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:30:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2433 states. [2024-11-22 03:30:12,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2433 to 2433. [2024-11-22 03:30:12,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2433 states, 2402 states have (on average 1.8288925895087427) internal successors, (4393), 2404 states have internal predecessors, (4393), 23 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 03:30:12,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 4439 transitions. [2024-11-22 03:30:12,357 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 4439 transitions. Word has length 145 [2024-11-22 03:30:12,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:12,359 INFO L471 AbstractCegarLoop]: Abstraction has 2433 states and 4439 transitions. [2024-11-22 03:30:12,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:12,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 4439 transitions. [2024-11-22 03:30:12,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:12,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:12,364 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] [2024-11-22 03:30:12,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:30:12,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:12,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash -535537185, now seen corresponding path program 1 times [2024-11-22 03:30:12,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:12,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813786268] [2024-11-22 03:30:12,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:12,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:12,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:12,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813786268] [2024-11-22 03:30:12,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813786268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:12,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:12,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:30:12,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882105654] [2024-11-22 03:30:12,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:12,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:30:12,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:12,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:30:12,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:30:12,728 INFO L87 Difference]: Start difference. First operand 2433 states and 4439 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:13,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:13,459 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2024-11-22 03:30:13,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:30:13,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (5), 2 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 145 [2024-11-22 03:30:13,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:13,477 INFO L225 Difference]: With dead ends: 3059 [2024-11-22 03:30:13,477 INFO L226 Difference]: Without dead ends: 2764 [2024-11-22 03:30:13,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:13,482 INFO L432 NwaCegarLoop]: 4333 mSDtfsCounter, 4863 mSDsluCounter, 8872 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4880 SdHoareTripleChecker+Valid, 13205 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:13,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4880 Valid, 13205 Invalid, 559 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:13,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2024-11-22 03:30:13,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2741. [2024-11-22 03:30:13,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2741 states, 2685 states have (on average 1.8011173184357543) internal successors, (4836), 2688 states have internal predecessors, (4836), 41 states have call successors, (41), 12 states have call predecessors, (41), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2024-11-22 03:30:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 4919 transitions. [2024-11-22 03:30:13,574 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 4919 transitions. Word has length 145 [2024-11-22 03:30:13,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:13,575 INFO L471 AbstractCegarLoop]: Abstraction has 2741 states and 4919 transitions. [2024-11-22 03:30:13,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:13,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 4919 transitions. [2024-11-22 03:30:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:13,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:13,578 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] [2024-11-22 03:30:13,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:30:13,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:13,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:13,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1207466339, now seen corresponding path program 1 times [2024-11-22 03:30:13,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:13,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64131224] [2024-11-22 03:30:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:13,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:13,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:13,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:13,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64131224] [2024-11-22 03:30:13,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64131224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:13,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:13,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:13,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241676164] [2024-11-22 03:30:13,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:13,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:13,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:13,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:13,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:13,960 INFO L87 Difference]: Start difference. First operand 2741 states and 4919 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:14,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:14,812 INFO L93 Difference]: Finished difference Result 3734 states and 6488 transitions. [2024-11-22 03:30:14,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:14,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 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 145 [2024-11-22 03:30:14,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:14,829 INFO L225 Difference]: With dead ends: 3734 [2024-11-22 03:30:14,829 INFO L226 Difference]: Without dead ends: 3131 [2024-11-22 03:30:14,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:14,838 INFO L432 NwaCegarLoop]: 4591 mSDtfsCounter, 4867 mSDsluCounter, 13812 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 18403 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:14,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4884 Valid, 18403 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 03:30:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2024-11-22 03:30:14,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 3028. [2024-11-22 03:30:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 2947 states have (on average 1.7770614183915847) internal successors, (5237), 2951 states have internal predecessors, (5237), 59 states have call successors, (59), 18 states have call predecessors, (59), 20 states have return successors, (63), 60 states have call predecessors, (63), 59 states have call successors, (63) [2024-11-22 03:30:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 5359 transitions. [2024-11-22 03:30:14,940 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 5359 transitions. Word has length 145 [2024-11-22 03:30:14,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:14,941 INFO L471 AbstractCegarLoop]: Abstraction has 3028 states and 5359 transitions. [2024-11-22 03:30:14,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:14,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 5359 transitions. [2024-11-22 03:30:14,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:14,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:14,944 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] [2024-11-22 03:30:14,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:30:14,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:14,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:14,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2140463071, now seen corresponding path program 1 times [2024-11-22 03:30:14,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:14,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540526985] [2024-11-22 03:30:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:14,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:15,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:15,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:15,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540526985] [2024-11-22 03:30:15,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540526985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:15,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:15,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:15,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114360344] [2024-11-22 03:30:15,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:15,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:15,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:15,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:15,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:15,154 INFO L87 Difference]: Start difference. First operand 3028 states and 5359 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:15,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:15,934 INFO L93 Difference]: Finished difference Result 4639 states and 7895 transitions. [2024-11-22 03:30:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:15,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 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 145 [2024-11-22 03:30:15,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:15,952 INFO L225 Difference]: With dead ends: 4639 [2024-11-22 03:30:15,953 INFO L226 Difference]: Without dead ends: 3749 [2024-11-22 03:30:15,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:15,959 INFO L432 NwaCegarLoop]: 4583 mSDtfsCounter, 4859 mSDsluCounter, 13790 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4876 SdHoareTripleChecker+Valid, 18373 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:15,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4876 Valid, 18373 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:15,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3749 states. [2024-11-22 03:30:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3749 to 3636. [2024-11-22 03:30:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 3503 states have (on average 1.741364544675992) internal successors, (6100), 3511 states have internal predecessors, (6100), 95 states have call successors, (95), 30 states have call predecessors, (95), 36 states have return successors, (111), 98 states have call predecessors, (111), 95 states have call successors, (111) [2024-11-22 03:30:16,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 6306 transitions. [2024-11-22 03:30:16,084 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 6306 transitions. Word has length 145 [2024-11-22 03:30:16,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:16,084 INFO L471 AbstractCegarLoop]: Abstraction has 3636 states and 6306 transitions. [2024-11-22 03:30:16,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:16,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 6306 transitions. [2024-11-22 03:30:16,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:16,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:16,088 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] [2024-11-22 03:30:16,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:30:16,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:16,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash 104095327, now seen corresponding path program 1 times [2024-11-22 03:30:16,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:16,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003532053] [2024-11-22 03:30:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:16,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:16,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:16,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003532053] [2024-11-22 03:30:16,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003532053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:16,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:16,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:16,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92509231] [2024-11-22 03:30:16,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:16,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:16,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:16,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:16,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:16,290 INFO L87 Difference]: Start difference. First operand 3636 states and 6306 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:17,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:17,126 INFO L93 Difference]: Finished difference Result 6591 states and 10996 transitions. [2024-11-22 03:30:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:17,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 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 145 [2024-11-22 03:30:17,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:17,151 INFO L225 Difference]: With dead ends: 6591 [2024-11-22 03:30:17,152 INFO L226 Difference]: Without dead ends: 5093 [2024-11-22 03:30:17,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:17,160 INFO L432 NwaCegarLoop]: 4580 mSDtfsCounter, 4854 mSDsluCounter, 13781 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4871 SdHoareTripleChecker+Valid, 18361 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:17,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4871 Valid, 18361 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:17,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5093 states. [2024-11-22 03:30:17,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5093 to 4951. [2024-11-22 03:30:17,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4951 states, 4708 states have (on average 1.7000849617672047) internal successors, (8004), 4730 states have internal predecessors, (8004), 167 states have call successors, (167), 54 states have call predecessors, (167), 74 states have return successors, (231), 174 states have call predecessors, (231), 167 states have call successors, (231) [2024-11-22 03:30:17,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4951 states to 4951 states and 8402 transitions. [2024-11-22 03:30:17,401 INFO L78 Accepts]: Start accepts. Automaton has 4951 states and 8402 transitions. Word has length 145 [2024-11-22 03:30:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:17,402 INFO L471 AbstractCegarLoop]: Abstraction has 4951 states and 8402 transitions. [2024-11-22 03:30:17,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:17,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4951 states and 8402 transitions. [2024-11-22 03:30:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:17,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:17,405 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] [2024-11-22 03:30:17,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:30:17,406 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:17,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:17,406 INFO L85 PathProgramCache]: Analyzing trace with hash 592142433, now seen corresponding path program 1 times [2024-11-22 03:30:17,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:17,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366703526] [2024-11-22 03:30:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:17,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:17,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:17,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366703526] [2024-11-22 03:30:17,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366703526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:17,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:17,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:17,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145526555] [2024-11-22 03:30:17,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:17,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:17,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:17,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:17,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:17,566 INFO L87 Difference]: Start difference. First operand 4951 states and 8402 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:18,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:18,424 INFO L93 Difference]: Finished difference Result 10872 states and 17994 transitions. [2024-11-22 03:30:18,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:18,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 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 145 [2024-11-22 03:30:18,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:18,484 INFO L225 Difference]: With dead ends: 10872 [2024-11-22 03:30:18,488 INFO L226 Difference]: Without dead ends: 8059 [2024-11-22 03:30:18,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:18,505 INFO L432 NwaCegarLoop]: 4577 mSDtfsCounter, 4849 mSDsluCounter, 13772 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4866 SdHoareTripleChecker+Valid, 18349 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:18,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4866 Valid, 18349 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:18,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8059 states. [2024-11-22 03:30:18,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8059 to 7860. [2024-11-22 03:30:18,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7860 states, 7379 states have (on average 1.6685187694809596) internal successors, (12312), 7447 states have internal predecessors, (12312), 311 states have call successors, (311), 102 states have call predecessors, (311), 168 states have return successors, (567), 326 states have call predecessors, (567), 311 states have call successors, (567) [2024-11-22 03:30:18,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7860 states to 7860 states and 13190 transitions. [2024-11-22 03:30:18,803 INFO L78 Accepts]: Start accepts. Automaton has 7860 states and 13190 transitions. Word has length 145 [2024-11-22 03:30:18,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:18,803 INFO L471 AbstractCegarLoop]: Abstraction has 7860 states and 13190 transitions. [2024-11-22 03:30:18,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:18,804 INFO L276 IsEmpty]: Start isEmpty. Operand 7860 states and 13190 transitions. [2024-11-22 03:30:18,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:18,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:18,809 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] [2024-11-22 03:30:18,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:30:18,809 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:18,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:18,810 INFO L85 PathProgramCache]: Analyzing trace with hash -500492769, now seen corresponding path program 1 times [2024-11-22 03:30:18,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:18,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139703731] [2024-11-22 03:30:18,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:18,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:18,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:18,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139703731] [2024-11-22 03:30:18,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139703731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:18,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:18,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:18,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422889717] [2024-11-22 03:30:18,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:18,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:18,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:18,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:18,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:18,980 INFO L87 Difference]: Start difference. First operand 7860 states and 13190 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:20,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:20,022 INFO L93 Difference]: Finished difference Result 20491 states and 34356 transitions. [2024-11-22 03:30:20,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:20,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 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 145 [2024-11-22 03:30:20,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:20,104 INFO L225 Difference]: With dead ends: 20491 [2024-11-22 03:30:20,104 INFO L226 Difference]: Without dead ends: 14769 [2024-11-22 03:30:20,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:20,138 INFO L432 NwaCegarLoop]: 4355 mSDtfsCounter, 4876 mSDsluCounter, 13239 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 17594 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:20,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4893 Valid, 17594 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:20,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14769 states. [2024-11-22 03:30:20,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14769 to 14461. [2024-11-22 03:30:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14461 states, 13450 states have (on average 1.6597769516728624) internal successors, (22324), 13664 states have internal predecessors, (22324), 599 states have call successors, (599), 198 states have call predecessors, (599), 410 states have return successors, (1623), 630 states have call predecessors, (1623), 599 states have call successors, (1623) [2024-11-22 03:30:20,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14461 states to 14461 states and 24546 transitions. [2024-11-22 03:30:20,930 INFO L78 Accepts]: Start accepts. Automaton has 14461 states and 24546 transitions. Word has length 145 [2024-11-22 03:30:20,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:20,931 INFO L471 AbstractCegarLoop]: Abstraction has 14461 states and 24546 transitions. [2024-11-22 03:30:20,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:20,932 INFO L276 IsEmpty]: Start isEmpty. Operand 14461 states and 24546 transitions. [2024-11-22 03:30:20,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:20,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:20,942 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] [2024-11-22 03:30:20,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:30:20,943 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:20,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:20,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1782665055, now seen corresponding path program 1 times [2024-11-22 03:30:20,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:20,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828662377] [2024-11-22 03:30:20,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:20,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:21,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:21,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828662377] [2024-11-22 03:30:21,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828662377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:21,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:21,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:30:21,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805070347] [2024-11-22 03:30:21,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:21,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:30:21,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:21,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:30:21,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:30:21,104 INFO L87 Difference]: Start difference. First operand 14461 states and 24546 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:22,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:22,082 INFO L93 Difference]: Finished difference Result 30214 states and 52323 transitions. [2024-11-22 03:30:22,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:30:22,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 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 145 [2024-11-22 03:30:22,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:22,205 INFO L225 Difference]: With dead ends: 30214 [2024-11-22 03:30:22,205 INFO L226 Difference]: Without dead ends: 17891 [2024-11-22 03:30:22,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:22,273 INFO L432 NwaCegarLoop]: 4310 mSDtfsCounter, 4597 mSDsluCounter, 8495 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4614 SdHoareTripleChecker+Valid, 12805 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:22,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4614 Valid, 12805 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 03:30:22,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17891 states. [2024-11-22 03:30:23,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17891 to 14461. [2024-11-22 03:30:23,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14461 states, 13450 states have (on average 1.6573234200743494) internal successors, (22291), 13664 states have internal predecessors, (22291), 599 states have call successors, (599), 198 states have call predecessors, (599), 410 states have return successors, (1623), 630 states have call predecessors, (1623), 599 states have call successors, (1623) [2024-11-22 03:30:23,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14461 states to 14461 states and 24513 transitions. [2024-11-22 03:30:23,424 INFO L78 Accepts]: Start accepts. Automaton has 14461 states and 24513 transitions. Word has length 145 [2024-11-22 03:30:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:23,426 INFO L471 AbstractCegarLoop]: Abstraction has 14461 states and 24513 transitions. [2024-11-22 03:30:23,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:23,426 INFO L276 IsEmpty]: Start isEmpty. Operand 14461 states and 24513 transitions. [2024-11-22 03:30:23,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:23,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:23,435 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] [2024-11-22 03:30:23,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:30:23,435 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:23,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:23,436 INFO L85 PathProgramCache]: Analyzing trace with hash 669826527, now seen corresponding path program 1 times [2024-11-22 03:30:23,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:23,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429725320] [2024-11-22 03:30:23,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:23,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:23,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:23,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:23,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429725320] [2024-11-22 03:30:23,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429725320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:23,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:23,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:23,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793448573] [2024-11-22 03:30:23,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:23,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:23,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:23,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:23,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:23,599 INFO L87 Difference]: Start difference. First operand 14461 states and 24513 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:25,097 INFO L93 Difference]: Finished difference Result 42408 states and 73587 transitions. [2024-11-22 03:30:25,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:25,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 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 145 [2024-11-22 03:30:25,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:25,267 INFO L225 Difference]: With dead ends: 42408 [2024-11-22 03:30:25,268 INFO L226 Difference]: Without dead ends: 30085 [2024-11-22 03:30:25,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:25,337 INFO L432 NwaCegarLoop]: 4566 mSDtfsCounter, 4831 mSDsluCounter, 13740 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4848 SdHoareTripleChecker+Valid, 18306 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:25,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4848 Valid, 18306 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:30:25,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30085 states. [2024-11-22 03:30:26,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30085 to 29607. [2024-11-22 03:30:27,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29607 states, 27374 states have (on average 1.668334916343976) internal successors, (45669), 28042 states have internal predecessors, (45669), 1175 states have call successors, (1175), 390 states have call predecessors, (1175), 1056 states have return successors, (5271), 1238 states have call predecessors, (5271), 1175 states have call successors, (5271) [2024-11-22 03:30:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29607 states to 29607 states and 52115 transitions. [2024-11-22 03:30:27,427 INFO L78 Accepts]: Start accepts. Automaton has 29607 states and 52115 transitions. Word has length 145 [2024-11-22 03:30:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:27,428 INFO L471 AbstractCegarLoop]: Abstraction has 29607 states and 52115 transitions. [2024-11-22 03:30:27,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:27,428 INFO L276 IsEmpty]: Start isEmpty. Operand 29607 states and 52115 transitions. [2024-11-22 03:30:27,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:27,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:27,443 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] [2024-11-22 03:30:27,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:30:27,444 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:27,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1052176159, now seen corresponding path program 1 times [2024-11-22 03:30:27,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:27,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945730168] [2024-11-22 03:30:27,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:27,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:27,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:27,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:27,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945730168] [2024-11-22 03:30:27,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945730168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:27,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:27,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:27,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378378220] [2024-11-22 03:30:27,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:27,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:27,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:27,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:27,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:27,613 INFO L87 Difference]: Start difference. First operand 29607 states and 52115 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:30,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:30,898 INFO L93 Difference]: Finished difference Result 93784 states and 172923 transitions. [2024-11-22 03:30:30,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:30,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 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 145 [2024-11-22 03:30:30,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:31,371 INFO L225 Difference]: With dead ends: 93784 [2024-11-22 03:30:31,372 INFO L226 Difference]: Without dead ends: 66315 [2024-11-22 03:30:31,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:31,453 INFO L432 NwaCegarLoop]: 4563 mSDtfsCounter, 4826 mSDsluCounter, 13731 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4843 SdHoareTripleChecker+Valid, 18294 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:31,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4843 Valid, 18294 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 03:30:31,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66315 states. [2024-11-22 03:30:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66315 to 65488. [2024-11-22 03:30:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65488 states, 60325 states have (on average 1.6927144633236635) internal successors, (102113), 62387 states have internal predecessors, (102113), 2327 states have call successors, (2327), 774 states have call predecessors, (2327), 2834 states have return successors, (18711), 2454 states have call predecessors, (18711), 2327 states have call successors, (18711) [2024-11-22 03:30:35,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65488 states to 65488 states and 123151 transitions. [2024-11-22 03:30:35,441 INFO L78 Accepts]: Start accepts. Automaton has 65488 states and 123151 transitions. Word has length 145 [2024-11-22 03:30:35,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:35,442 INFO L471 AbstractCegarLoop]: Abstraction has 65488 states and 123151 transitions. [2024-11-22 03:30:35,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:35,442 INFO L276 IsEmpty]: Start isEmpty. Operand 65488 states and 123151 transitions. [2024-11-22 03:30:35,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:35,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:35,469 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] [2024-11-22 03:30:35,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:30:35,469 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:35,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:35,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1384819297, now seen corresponding path program 1 times [2024-11-22 03:30:35,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:35,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310783888] [2024-11-22 03:30:35,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:35,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:35,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:35,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:35,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310783888] [2024-11-22 03:30:35,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310783888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:35,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:35,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:35,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21311002] [2024-11-22 03:30:35,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:35,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:35,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:35,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:35,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:35,638 INFO L87 Difference]: Start difference. First operand 65488 states and 123151 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:41,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:30:41,394 INFO L93 Difference]: Finished difference Result 222735 states and 445330 transitions. [2024-11-22 03:30:41,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:30:41,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 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 145 [2024-11-22 03:30:41,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:30:42,288 INFO L225 Difference]: With dead ends: 222735 [2024-11-22 03:30:42,289 INFO L226 Difference]: Without dead ends: 159385 [2024-11-22 03:30:42,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:30:42,454 INFO L432 NwaCegarLoop]: 4553 mSDtfsCounter, 4900 mSDsluCounter, 13698 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 18251 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 03:30:42,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4916 Valid, 18251 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 03:30:42,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159385 states. [2024-11-22 03:30:49,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159385 to 149348. [2024-11-22 03:30:49,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149348 states, 136995 states have (on average 1.719237928391547) internal successors, (235527), 143303 states have internal predecessors, (235527), 4503 states have call successors, (4503), 1542 states have call predecessors, (4503), 7848 states have return successors, (70039), 4758 states have call predecessors, (70039), 4503 states have call successors, (70039) [2024-11-22 03:30:50,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149348 states to 149348 states and 310069 transitions. [2024-11-22 03:30:50,792 INFO L78 Accepts]: Start accepts. Automaton has 149348 states and 310069 transitions. Word has length 145 [2024-11-22 03:30:50,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:30:50,792 INFO L471 AbstractCegarLoop]: Abstraction has 149348 states and 310069 transitions. [2024-11-22 03:30:50,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:30:50,793 INFO L276 IsEmpty]: Start isEmpty. Operand 149348 states and 310069 transitions. [2024-11-22 03:30:50,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 03:30:50,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:30:50,849 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] [2024-11-22 03:30:50,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:30:50,849 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:30:50,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:30:50,850 INFO L85 PathProgramCache]: Analyzing trace with hash 617066973, now seen corresponding path program 1 times [2024-11-22 03:30:50,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:30:50,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550179217] [2024-11-22 03:30:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:30:50,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:30:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:30:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:30:51,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:30:51,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550179217] [2024-11-22 03:30:51,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550179217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:30:51,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:30:51,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:30:51,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447444603] [2024-11-22 03:30:51,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:30:51,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:30:51,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:30:51,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:30:51,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:30:51,015 INFO L87 Difference]: Start difference. First operand 149348 states and 310069 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)