./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.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 211a040b667c92c6d715ed7462c0db91088ae0b583b29f60ca2f33cb3ca9ce8b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:43:24,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:43:24,442 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:43:24,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:43:24,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:43:24,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:43:24,468 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:43:24,468 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:43:24,469 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:43:24,469 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:43:24,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:43:24,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:43:24,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:43:24,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:43:24,471 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:43:24,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:43:24,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:43:24,471 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:43:24,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:43:24,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:43:24,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:43:24,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:43:24,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:43:24,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:43:24,477 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:43:24,477 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:43:24,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:43:24,477 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:43:24,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:43:24,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:43:24,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:43:24,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:43:24,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:43:24,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:43:24,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:43:24,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:43:24,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:43:24,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:43:24,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:43:24,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:43:24,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:43:24,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:43:24,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 211a040b667c92c6d715ed7462c0db91088ae0b583b29f60ca2f33cb3ca9ce8b [2024-11-18 15:43:24,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:43:24,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:43:24,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:43:24,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:43:24,688 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:43:24,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-1.c [2024-11-18 15:43:25,893 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:43:26,379 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:43:26,381 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.05.cil-1.c [2024-11-18 15:43:26,420 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c0af37c/65093a1728b74bc998b62ced68fd4edc/FLAG47bcb01f8 [2024-11-18 15:43:26,467 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9c0af37c/65093a1728b74bc998b62ced68fd4edc [2024-11-18 15:43:26,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:43:26,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:43:26,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:43:26,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:43:26,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:43:26,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:43:26" (1/1) ... [2024-11-18 15:43:26,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b8e0fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:26, skipping insertion in model container [2024-11-18 15:43:26,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:43:26" (1/1) ... [2024-11-18 15:43:26,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:43:27,779 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.05.cil-1.c[380593,380606] [2024-11-18 15:43:27,799 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.05.cil-1.c[383339,383352] [2024-11-18 15:43:27,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:43:27,953 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:43:28,593 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.05.cil-1.c[380593,380606] [2024-11-18 15:43:28,598 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.05.cil-1.c[383339,383352] [2024-11-18 15:43:28,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:43:28,665 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:43:28,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28 WrapperNode [2024-11-18 15:43:28,665 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:43:28,666 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:43:28,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:43:28,667 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:43:28,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:28,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:28,947 INFO L138 Inliner]: procedures = 54, calls = 56, calls flagged for inlining = 32, calls inlined = 32, statements flattened = 12813 [2024-11-18 15:43:28,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:43:28,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:43:28,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:43:28,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:43:28,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:28,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:29,075 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:29,155 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]. [2024-11-18 15:43:29,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:29,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:29,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:29,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:29,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:29,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:29,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:43:29,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:43:29,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:43:29,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:43:29,341 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (1/1) ... [2024-11-18 15:43:29,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:43:29,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:43:29,368 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) [2024-11-18 15:43:29,435 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 [2024-11-18 15:43:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:43:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 15:43:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 15:43:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 15:43:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 15:43:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 15:43:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 15:43:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 15:43:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 15:43:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 15:43:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 15:43:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 15:43:29,494 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 15:43:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:43:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:43:29,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:43:29,574 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:43:29,576 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:43:35,410 INFO L? ?]: Removed 1713 outVars from TransFormulas that were not future-live. [2024-11-18 15:43:35,410 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:43:35,462 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:43:35,463 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-18 15:43:35,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:43:35 BoogieIcfgContainer [2024-11-18 15:43:35,463 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:43:35,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:43:35,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:43:35,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:43:35,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:43:26" (1/3) ... [2024-11-18 15:43:35,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0ab497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:43:35, skipping insertion in model container [2024-11-18 15:43:35,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:43:28" (2/3) ... [2024-11-18 15:43:35,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0ab497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:43:35, skipping insertion in model container [2024-11-18 15:43:35,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:43:35" (3/3) ... [2024-11-18 15:43:35,471 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.05.cil-1.c [2024-11-18 15:43:35,484 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:43:35,485 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:43:35,579 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:43:35,585 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;@452f0bbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:43:35,585 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:43:35,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-18 15:43:35,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:35,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:35,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:43:35,607 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:35,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:35,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1103952823, now seen corresponding path program 1 times [2024-11-18 15:43:35,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:35,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840132588] [2024-11-18 15:43:35,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:35,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:35,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:35,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:35,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840132588] [2024-11-18 15:43:35,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840132588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:35,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:35,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:43:35,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795580298] [2024-11-18 15:43:35,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:35,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:43:35,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:35,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:43:35,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:43:35,972 INFO L87 Difference]: Start difference. First operand has 2396 states, 2368 states have (on average 1.8505067567567568) internal successors, (4382), 2371 states have internal predecessors, (4382), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-18 15:43:36,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:43:36,109 INFO L93 Difference]: Finished difference Result 4784 states and 8825 transitions. [2024-11-18 15:43:36,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:43:36,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 101 [2024-11-18 15:43:36,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:43:36,139 INFO L225 Difference]: With dead ends: 4784 [2024-11-18 15:43:36,139 INFO L226 Difference]: Without dead ends: 2329 [2024-11-18 15:43:36,148 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 [2024-11-18 15:43:36,150 INFO L432 NwaCegarLoop]: 4339 mSDtfsCounter, 310 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 8361 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 [2024-11-18 15:43:36,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 8361 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:43:36,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2024-11-18 15:43:36,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2329. [2024-11-18 15:43:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 2302 states have (on average 1.8388357949609035) internal successors, (4233), 2304 states have internal predecessors, (4233), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-18 15:43:36,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 4271 transitions. [2024-11-18 15:43:36,272 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 4271 transitions. Word has length 101 [2024-11-18 15:43:36,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:43:36,273 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 4271 transitions. [2024-11-18 15:43:36,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-18 15:43:36,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 4271 transitions. [2024-11-18 15:43:36,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:36,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:36,280 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:43:36,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:43:36,281 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:36,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:36,281 INFO L85 PathProgramCache]: Analyzing trace with hash -773110407, now seen corresponding path program 1 times [2024-11-18 15:43:36,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:36,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496009601] [2024-11-18 15:43:36,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:36,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:36,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:36,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496009601] [2024-11-18 15:43:36,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496009601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:36,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:36,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:43:36,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653506181] [2024-11-18 15:43:36,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:36,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:43:36,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:36,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:43:36,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:43:36,500 INFO L87 Difference]: Start difference. First operand 2329 states and 4271 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2024-11-18 15:43:36,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:43:36,892 INFO L93 Difference]: Finished difference Result 2739 states and 4899 transitions. [2024-11-18 15:43:36,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:43:36,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 101 [2024-11-18 15:43:36,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:43:36,905 INFO L225 Difference]: With dead ends: 2739 [2024-11-18 15:43:36,906 INFO L226 Difference]: Without dead ends: 2544 [2024-11-18 15:43:36,908 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 [2024-11-18 15:43:36,909 INFO L432 NwaCegarLoop]: 4201 mSDtfsCounter, 4519 mSDsluCounter, 8524 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 12725 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:43:36,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 12725 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:43:36,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-11-18 15:43:36,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2529. [2024-11-18 15:43:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2481 states have (on average 1.8170092704554615) internal successors, (4508), 2484 states have internal predecessors, (4508), 33 states have call successors, (33), 12 states have call predecessors, (33), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2024-11-18 15:43:36,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 4575 transitions. [2024-11-18 15:43:36,968 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 4575 transitions. Word has length 101 [2024-11-18 15:43:36,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:43:36,968 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 4575 transitions. [2024-11-18 15:43:36,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2024-11-18 15:43:36,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 4575 transitions. [2024-11-18 15:43:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:36,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:36,974 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] [2024-11-18 15:43:36,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:43:36,974 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:36,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:36,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972285, now seen corresponding path program 1 times [2024-11-18 15:43:36,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:36,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706713320] [2024-11-18 15:43:36,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:36,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:37,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:37,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706713320] [2024-11-18 15:43:37,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706713320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:37,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:37,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:43:37,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474838787] [2024-11-18 15:43:37,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:37,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:43:37,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:37,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:43:37,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:43:37,136 INFO L87 Difference]: Start difference. First operand 2529 states and 4575 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:37,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:43:37,669 INFO L93 Difference]: Finished difference Result 3174 states and 5568 transitions. [2024-11-18 15:43:37,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:43:37,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-18 15:43:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:43:37,681 INFO L225 Difference]: With dead ends: 3174 [2024-11-18 15:43:37,681 INFO L226 Difference]: Without dead ends: 2779 [2024-11-18 15:43:37,684 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 [2024-11-18 15:43:37,687 INFO L432 NwaCegarLoop]: 4363 mSDtfsCounter, 4515 mSDsluCounter, 13088 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 17451 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:43:37,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 17451 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:43:37,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2024-11-18 15:43:37,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2716. [2024-11-18 15:43:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2647 states have (on average 1.797128825085002) internal successors, (4757), 2651 states have internal predecessors, (4757), 47 states have call successors, (47), 18 states have call predecessors, (47), 20 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51) [2024-11-18 15:43:37,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 4855 transitions. [2024-11-18 15:43:37,754 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 4855 transitions. Word has length 101 [2024-11-18 15:43:37,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:43:37,755 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 4855 transitions. [2024-11-18 15:43:37,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:37,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 4855 transitions. [2024-11-18 15:43:37,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:37,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:37,759 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] [2024-11-18 15:43:37,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:43:37,759 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:37,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:37,759 INFO L85 PathProgramCache]: Analyzing trace with hash -74158661, now seen corresponding path program 1 times [2024-11-18 15:43:37,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:37,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862195683] [2024-11-18 15:43:37,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:37,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:37,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:37,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862195683] [2024-11-18 15:43:37,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862195683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:37,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:37,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:43:37,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725834173] [2024-11-18 15:43:37,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:37,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:43:37,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:37,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:43:37,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:43:37,900 INFO L87 Difference]: Start difference. First operand 2716 states and 4855 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:38,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:43:38,425 INFO L93 Difference]: Finished difference Result 3755 states and 6447 transitions. [2024-11-18 15:43:38,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:43:38,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-18 15:43:38,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:43:38,435 INFO L225 Difference]: With dead ends: 3755 [2024-11-18 15:43:38,436 INFO L226 Difference]: Without dead ends: 3173 [2024-11-18 15:43:38,438 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 [2024-11-18 15:43:38,439 INFO L432 NwaCegarLoop]: 4355 mSDtfsCounter, 4507 mSDsluCounter, 13066 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 17421 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:43:38,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4520 Valid, 17421 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:43:38,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2024-11-18 15:43:38,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 3108. [2024-11-18 15:43:38,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 2995 states have (on average 1.7642737896494156) internal successors, (5284), 3003 states have internal predecessors, (5284), 75 states have call successors, (75), 30 states have call predecessors, (75), 36 states have return successors, (91), 78 states have call predecessors, (91), 75 states have call successors, (91) [2024-11-18 15:43:38,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 5450 transitions. [2024-11-18 15:43:38,516 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 5450 transitions. Word has length 101 [2024-11-18 15:43:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:43:38,517 INFO L471 AbstractCegarLoop]: Abstraction has 3108 states and 5450 transitions. [2024-11-18 15:43:38,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:38,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 5450 transitions. [2024-11-18 15:43:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:38,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:38,518 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] [2024-11-18 15:43:38,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:43:38,519 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:38,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1492599289, now seen corresponding path program 1 times [2024-11-18 15:43:38,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:38,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387652310] [2024-11-18 15:43:38,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:38,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:38,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:38,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:38,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387652310] [2024-11-18 15:43:38,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387652310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:38,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:38,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:43:38,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481643813] [2024-11-18 15:43:38,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:38,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:43:38,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:38,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:43:38,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:43:38,629 INFO L87 Difference]: Start difference. First operand 3108 states and 5450 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:39,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:43:39,098 INFO L93 Difference]: Finished difference Result 4995 states and 8364 transitions. [2024-11-18 15:43:39,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:43:39,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-18 15:43:39,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:43:39,111 INFO L225 Difference]: With dead ends: 4995 [2024-11-18 15:43:39,111 INFO L226 Difference]: Without dead ends: 4021 [2024-11-18 15:43:39,115 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 [2024-11-18 15:43:39,116 INFO L432 NwaCegarLoop]: 4352 mSDtfsCounter, 4502 mSDsluCounter, 13057 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4515 SdHoareTripleChecker+Valid, 17409 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:43:39,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4515 Valid, 17409 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:43:39,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2024-11-18 15:43:39,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 3943. [2024-11-18 15:43:39,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3943 states, 3736 states have (on average 1.7184154175588866) internal successors, (6420), 3758 states have internal predecessors, (6420), 131 states have call successors, (131), 54 states have call predecessors, (131), 74 states have return successors, (195), 138 states have call predecessors, (195), 131 states have call successors, (195) [2024-11-18 15:43:39,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 6746 transitions. [2024-11-18 15:43:39,200 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 6746 transitions. Word has length 101 [2024-11-18 15:43:39,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:43:39,201 INFO L471 AbstractCegarLoop]: Abstraction has 3943 states and 6746 transitions. [2024-11-18 15:43:39,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:39,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 6746 transitions. [2024-11-18 15:43:39,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:39,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:39,202 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] [2024-11-18 15:43:39,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:43:39,203 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:39,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:39,203 INFO L85 PathProgramCache]: Analyzing trace with hash 434761211, now seen corresponding path program 1 times [2024-11-18 15:43:39,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:39,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953523277] [2024-11-18 15:43:39,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:39,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:39,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:39,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:39,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953523277] [2024-11-18 15:43:39,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953523277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:39,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:39,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:43:39,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011242243] [2024-11-18 15:43:39,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:39,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:43:39,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:39,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:43:39,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:43:39,280 INFO L87 Difference]: Start difference. First operand 3943 states and 6746 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:39,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:43:39,836 INFO L93 Difference]: Finished difference Result 7660 states and 12610 transitions. [2024-11-18 15:43:39,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:43:39,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-18 15:43:39,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:43:39,858 INFO L225 Difference]: With dead ends: 7660 [2024-11-18 15:43:39,858 INFO L226 Difference]: Without dead ends: 5851 [2024-11-18 15:43:39,863 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 [2024-11-18 15:43:39,864 INFO L432 NwaCegarLoop]: 4349 mSDtfsCounter, 4497 mSDsluCounter, 13048 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4510 SdHoareTripleChecker+Valid, 17397 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:43:39,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4510 Valid, 17397 Invalid, 645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:43:39,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2024-11-18 15:43:40,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 5748. [2024-11-18 15:43:40,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 5335 states have (on average 1.6689784442361761) internal successors, (8904), 5403 states have internal predecessors, (8904), 243 states have call successors, (243), 102 states have call predecessors, (243), 168 states have return successors, (499), 258 states have call predecessors, (499), 243 states have call successors, (499) [2024-11-18 15:43:40,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 9646 transitions. [2024-11-18 15:43:40,083 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 9646 transitions. Word has length 101 [2024-11-18 15:43:40,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:43:40,083 INFO L471 AbstractCegarLoop]: Abstraction has 5748 states and 9646 transitions. [2024-11-18 15:43:40,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:40,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 9646 transitions. [2024-11-18 15:43:40,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:40,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:40,089 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] [2024-11-18 15:43:40,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:43:40,090 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:40,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:40,090 INFO L85 PathProgramCache]: Analyzing trace with hash -707741255, now seen corresponding path program 1 times [2024-11-18 15:43:40,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:40,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275133482] [2024-11-18 15:43:40,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:40,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:40,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:40,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:40,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275133482] [2024-11-18 15:43:40,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275133482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:40,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:40,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:43:40,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184766175] [2024-11-18 15:43:40,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:40,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:43:40,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:40,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:43:40,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:43:40,196 INFO L87 Difference]: Start difference. First operand 5748 states and 9646 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:40,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:43:40,884 INFO L93 Difference]: Finished difference Result 14111 states and 23277 transitions. [2024-11-18 15:43:40,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:43:40,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-18 15:43:40,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:43:40,936 INFO L225 Difference]: With dead ends: 14111 [2024-11-18 15:43:40,936 INFO L226 Difference]: Without dead ends: 10497 [2024-11-18 15:43:40,953 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 [2024-11-18 15:43:40,954 INFO L432 NwaCegarLoop]: 4208 mSDtfsCounter, 4681 mSDsluCounter, 12709 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4700 SdHoareTripleChecker+Valid, 16917 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:43:40,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4700 Valid, 16917 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:43:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10497 states. [2024-11-18 15:43:41,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10497 to 9661. [2024-11-18 15:43:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9661 states, 8798 states have (on average 1.6335530802455103) internal successors, (14372), 9012 states have internal predecessors, (14372), 451 states have call successors, (451), 198 states have call predecessors, (451), 410 states have return successors, (1475), 482 states have call predecessors, (1475), 451 states have call successors, (1475) [2024-11-18 15:43:41,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9661 states to 9661 states and 16298 transitions. [2024-11-18 15:43:41,408 INFO L78 Accepts]: Start accepts. Automaton has 9661 states and 16298 transitions. Word has length 101 [2024-11-18 15:43:41,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:43:41,410 INFO L471 AbstractCegarLoop]: Abstraction has 9661 states and 16298 transitions. [2024-11-18 15:43:41,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:41,411 INFO L276 IsEmpty]: Start isEmpty. Operand 9661 states and 16298 transitions. [2024-11-18 15:43:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:41,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:41,417 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] [2024-11-18 15:43:41,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:43:41,418 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:41,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:41,418 INFO L85 PathProgramCache]: Analyzing trace with hash -467501509, now seen corresponding path program 1 times [2024-11-18 15:43:41,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:41,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896020788] [2024-11-18 15:43:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:41,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:41,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:41,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:41,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896020788] [2024-11-18 15:43:41,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896020788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:41,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:41,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:43:41,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023950095] [2024-11-18 15:43:41,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:41,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:43:41,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:41,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:43:41,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:43:41,515 INFO L87 Difference]: Start difference. First operand 9661 states and 16298 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:42,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:43:42,319 INFO L93 Difference]: Finished difference Result 27202 states and 46795 transitions. [2024-11-18 15:43:42,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:43:42,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-18 15:43:42,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:43:42,388 INFO L225 Difference]: With dead ends: 27202 [2024-11-18 15:43:42,389 INFO L226 Difference]: Without dead ends: 19675 [2024-11-18 15:43:42,419 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 [2024-11-18 15:43:42,420 INFO L432 NwaCegarLoop]: 4340 mSDtfsCounter, 4529 mSDsluCounter, 13016 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4541 SdHoareTripleChecker+Valid, 17356 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:43:42,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4541 Valid, 17356 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:43:42,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19675 states. [2024-11-18 15:43:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19675 to 18170. [2024-11-18 15:43:43,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18170 states, 16261 states have (on average 1.6173667056146608) internal successors, (26300), 16929 states have internal predecessors, (26300), 851 states have call successors, (851), 390 states have call predecessors, (851), 1056 states have return successors, (4947), 914 states have call predecessors, (4947), 851 states have call successors, (4947) [2024-11-18 15:43:43,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18170 states to 18170 states and 32098 transitions. [2024-11-18 15:43:43,145 INFO L78 Accepts]: Start accepts. Automaton has 18170 states and 32098 transitions. Word has length 101 [2024-11-18 15:43:43,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:43:43,145 INFO L471 AbstractCegarLoop]: Abstraction has 18170 states and 32098 transitions. [2024-11-18 15:43:43,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:43,146 INFO L276 IsEmpty]: Start isEmpty. Operand 18170 states and 32098 transitions. [2024-11-18 15:43:43,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:43,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:43,153 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] [2024-11-18 15:43:43,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:43:43,154 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:43,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:43,154 INFO L85 PathProgramCache]: Analyzing trace with hash 371532153, now seen corresponding path program 1 times [2024-11-18 15:43:43,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:43,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033744205] [2024-11-18 15:43:43,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:43,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:43,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033744205] [2024-11-18 15:43:43,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033744205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:43,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:43,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:43:43,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641217140] [2024-11-18 15:43:43,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:43,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:43:43,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:43,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:43:43,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:43:43,229 INFO L87 Difference]: Start difference. First operand 18170 states and 32098 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:44,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:43:44,629 INFO L93 Difference]: Finished difference Result 55681 states and 104417 transitions. [2024-11-18 15:43:44,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:43:44,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-18 15:43:44,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:43:44,821 INFO L225 Difference]: With dead ends: 55681 [2024-11-18 15:43:44,822 INFO L226 Difference]: Without dead ends: 39645 [2024-11-18 15:43:44,882 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 [2024-11-18 15:43:44,883 INFO L432 NwaCegarLoop]: 4338 mSDtfsCounter, 4586 mSDsluCounter, 13010 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4605 SdHoareTripleChecker+Valid, 17348 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:43:44,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4605 Valid, 17348 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:43:44,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39645 states. [2024-11-18 15:43:46,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39645 to 37439. [2024-11-18 15:43:46,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37439 states, 32984 states have (on average 1.6138733931603202) internal successors, (53232), 35046 states have internal predecessors, (53232), 1619 states have call successors, (1619), 774 states have call predecessors, (1619), 2834 states have return successors, (18003), 1746 states have call predecessors, (18003), 1619 states have call successors, (18003) [2024-11-18 15:43:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37439 states to 37439 states and 72854 transitions. [2024-11-18 15:43:46,996 INFO L78 Accepts]: Start accepts. Automaton has 37439 states and 72854 transitions. Word has length 101 [2024-11-18 15:43:46,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:43:46,998 INFO L471 AbstractCegarLoop]: Abstraction has 37439 states and 72854 transitions. [2024-11-18 15:43:46,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:46,998 INFO L276 IsEmpty]: Start isEmpty. Operand 37439 states and 72854 transitions. [2024-11-18 15:43:47,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:47,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:47,013 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] [2024-11-18 15:43:47,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:43:47,014 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:47,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:47,016 INFO L85 PathProgramCache]: Analyzing trace with hash 398597755, now seen corresponding path program 1 times [2024-11-18 15:43:47,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:47,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930547368] [2024-11-18 15:43:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:47,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:47,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:47,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:47,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930547368] [2024-11-18 15:43:47,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930547368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:47,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:47,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:43:47,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309657723] [2024-11-18 15:43:47,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:47,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:43:47,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:47,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:43:47,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:43:47,086 INFO L87 Difference]: Start difference. First operand 37439 states and 72854 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:50,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:43:50,390 INFO L93 Difference]: Finished difference Result 119548 states and 258559 transitions. [2024-11-18 15:43:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:43:50,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-18 15:43:50,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:43:51,034 INFO L225 Difference]: With dead ends: 119548 [2024-11-18 15:43:51,035 INFO L226 Difference]: Without dead ends: 84243 [2024-11-18 15:43:51,117 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 [2024-11-18 15:43:51,118 INFO L432 NwaCegarLoop]: 4335 mSDtfsCounter, 4551 mSDsluCounter, 13001 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 17336 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:43:51,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4570 Valid, 17336 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:43:51,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84243 states. [2024-11-18 15:43:56,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84243 to 80888. [2024-11-18 15:43:56,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80888 states, 69947 states have (on average 1.6117345990535692) internal successors, (112736), 76255 states have internal predecessors, (112736), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 7848 states have return successors, (68627), 3346 states have call predecessors, (68627), 3091 states have call successors, (68627) [2024-11-18 15:43:57,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80888 states to 80888 states and 184454 transitions. [2024-11-18 15:43:57,377 INFO L78 Accepts]: Start accepts. Automaton has 80888 states and 184454 transitions. Word has length 101 [2024-11-18 15:43:57,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:43:57,378 INFO L471 AbstractCegarLoop]: Abstraction has 80888 states and 184454 transitions. [2024-11-18 15:43:57,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:43:57,379 INFO L276 IsEmpty]: Start isEmpty. Operand 80888 states and 184454 transitions. [2024-11-18 15:43:57,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:43:57,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:43:57,407 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] [2024-11-18 15:43:57,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:43:57,407 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:43:57,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:43:57,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1678739143, now seen corresponding path program 1 times [2024-11-18 15:43:57,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:43:57,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980517497] [2024-11-18 15:43:57,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:43:57,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:43:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:43:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:43:57,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:43:57,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980517497] [2024-11-18 15:43:57,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980517497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:43:57,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:43:57,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:43:57,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189920847] [2024-11-18 15:43:57,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:43:57,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:43:57,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:43:57,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:43:57,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:43:57,470 INFO L87 Difference]: Start difference. First operand 80888 states and 184454 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:44:02,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:44:02,844 INFO L93 Difference]: Finished difference Result 172768 states and 437545 transitions. [2024-11-18 15:44:02,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:44:02,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 101 [2024-11-18 15:44:02,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:44:03,782 INFO L225 Difference]: With dead ends: 172768 [2024-11-18 15:44:03,783 INFO L226 Difference]: Without dead ends: 94014 [2024-11-18 15:44:03,969 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 [2024-11-18 15:44:03,969 INFO L432 NwaCegarLoop]: 4170 mSDtfsCounter, 4351 mSDsluCounter, 8253 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 12423 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:44:03,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4364 Valid, 12423 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:44:04,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94014 states. [2024-11-18 15:44:12,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94014 to 80888. [2024-11-18 15:44:12,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80888 states, 69947 states have (on average 1.6080603885799247) internal successors, (112479), 76255 states have internal predecessors, (112479), 3091 states have call successors, (3091), 1542 states have call predecessors, (3091), 7848 states have return successors, (68627), 3346 states have call predecessors, (68627), 3091 states have call successors, (68627) [2024-11-18 15:44:12,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80888 states to 80888 states and 184197 transitions. [2024-11-18 15:44:12,896 INFO L78 Accepts]: Start accepts. Automaton has 80888 states and 184197 transitions. Word has length 101 [2024-11-18 15:44:12,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:44:12,896 INFO L471 AbstractCegarLoop]: Abstraction has 80888 states and 184197 transitions. [2024-11-18 15:44:12,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-18 15:44:12,897 INFO L276 IsEmpty]: Start isEmpty. Operand 80888 states and 184197 transitions. [2024-11-18 15:44:12,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:44:12,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:44:12,926 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] [2024-11-18 15:44:12,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:44:12,926 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:44:12,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:44:12,927 INFO L85 PathProgramCache]: Analyzing trace with hash -791516297, now seen corresponding path program 1 times [2024-11-18 15:44:12,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:44:12,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23034956] [2024-11-18 15:44:12,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:44:12,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:44:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:44:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:44:12,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:44:12,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23034956] [2024-11-18 15:44:12,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23034956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:44:12,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:44:12,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:44:12,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380032676] [2024-11-18 15:44:12,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:44:12,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 15:44:12,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:44:12,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 15:44:12,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 15:44:12,976 INFO L87 Difference]: Start difference. First operand 80888 states and 184197 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)