./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.04.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.04.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 6b2ea308b98ca1eae9030e7a6017fcc5084f411cde9353ed6e1419a4046239c4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:21:01,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:21:01,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:21:01,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:21:01,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:21:01,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:21:01,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:21:01,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:21:01,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:21:01,460 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:21:01,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:21:01,461 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:21:01,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:21:01,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:21:01,462 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:21:01,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:21:01,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:21:01,464 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:21:01,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:21:01,464 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:21:01,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:21:01,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:21:01,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:21:01,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:21:01,468 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:21:01,468 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:21:01,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:21:01,469 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:21:01,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:21:01,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:21:01,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:21:01,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:21:01,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:21:01,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:21:01,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:21:01,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:21:01,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:21:01,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:21:01,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:21:01,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:21:01,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:21:01,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:21:01,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2ea308b98ca1eae9030e7a6017fcc5084f411cde9353ed6e1419a4046239c4 [2024-10-24 02:21:01,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:21:01,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:21:01,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:21:01,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:21:01,682 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:21:01,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.04.cil-1.c [2024-10-24 02:21:02,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:21:03,374 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:21:03,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.04.cil-1.c [2024-10-24 02:21:03,421 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241abc730/310aa7f66ff049d08fe05a9265a95475/FLAGfb13039b0 [2024-10-24 02:21:03,435 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241abc730/310aa7f66ff049d08fe05a9265a95475 [2024-10-24 02:21:03,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:21:03,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:21:03,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:21:03,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:21:03,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:21:03,446 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:21:03" (1/1) ... [2024-10-24 02:21:03,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3f49bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:03, skipping insertion in model container [2024-10-24 02:21:03,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:21:03" (1/1) ... [2024-10-24 02:21:03,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:21:04,812 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.04.cil-1.c[382357,382370] [2024-10-24 02:21:04,832 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.04.cil-1.c[383339,383352] [2024-10-24 02:21:04,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:21:04,954 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:21:05,569 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.04.cil-1.c[382357,382370] [2024-10-24 02:21:05,573 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.04.cil-1.c[383339,383352] [2024-10-24 02:21:05,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:21:05,634 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:21:05,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05 WrapperNode [2024-10-24 02:21:05,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:21:05,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:21:05,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:21:05,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:21:05,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:05,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:05,976 INFO L138 Inliner]: procedures = 52, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12753 [2024-10-24 02:21:05,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:21:05,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:21:05,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:21:05,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:21:05,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:05,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:06,030 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:06,109 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]. [2024-10-24 02:21:06,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:06,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:06,360 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:06,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:06,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:06,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:06,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:21:06,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:21:06,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:21:06,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:21:06,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (1/1) ... [2024-10-24 02:21:06,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:21:06,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:06,553 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) [2024-10-24 02:21:06,556 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 [2024-10-24 02:21:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:21:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:21:06,609 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:21:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:21:06,610 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:21:06,611 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:21:06,611 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:21:06,611 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:21:06,611 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:21:06,611 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:21:06,612 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:21:06,612 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:21:06,612 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:21:06,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:21:06,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:21:06,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:21:06,761 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:21:06,763 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:21:12,484 INFO L? ?]: Removed 1707 outVars from TransFormulas that were not future-live. [2024-10-24 02:21:12,485 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:21:12,551 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:21:12,551 INFO L314 CfgBuilder]: Removed 8 assume(true) statements. [2024-10-24 02:21:12,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:21:12 BoogieIcfgContainer [2024-10-24 02:21:12,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:21:12,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:21:12,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:21:12,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:21:12,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:21:03" (1/3) ... [2024-10-24 02:21:12,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f30b803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:21:12, skipping insertion in model container [2024-10-24 02:21:12,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:21:05" (2/3) ... [2024-10-24 02:21:12,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f30b803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:21:12, skipping insertion in model container [2024-10-24 02:21:12,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:21:12" (3/3) ... [2024-10-24 02:21:12,558 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.04.cil-1.c [2024-10-24 02:21:12,570 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:21:12,570 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:21:12,648 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:21:12,657 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;@457ff05f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:21:12,657 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:21:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 2287 states, 2260 states have (on average 1.8836283185840708) internal successors, (4257), 2263 states have internal predecessors, (4257), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 02:21:12,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:12,678 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:12,679 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] [2024-10-24 02:21:12,679 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:12,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:12,683 INFO L85 PathProgramCache]: Analyzing trace with hash 441639431, now seen corresponding path program 1 times [2024-10-24 02:21:12,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:12,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51426369] [2024-10-24 02:21:12,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:12,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:12,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:13,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:13,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:13,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:13,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51426369] [2024-10-24 02:21:13,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51426369] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:13,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:13,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:21:13,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536066563] [2024-10-24 02:21:13,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:13,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:21:13,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:13,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:21:13,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:21:13,085 INFO L87 Difference]: Start difference. First operand has 2287 states, 2260 states have (on average 1.8836283185840708) internal successors, (4257), 2263 states have internal predecessors, (4257), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:13,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:13,770 INFO L93 Difference]: Finished difference Result 4620 states and 8666 transitions. [2024-10-24 02:21:13,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:21:13,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:13,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:13,791 INFO L225 Difference]: With dead ends: 4620 [2024-10-24 02:21:13,791 INFO L226 Difference]: Without dead ends: 2333 [2024-10-24 02:21:13,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 02:21:13,800 INFO L432 NwaCegarLoop]: 4105 mSDtfsCounter, 411 mSDsluCounter, 12028 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 16133 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:13,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 16133 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 02:21:13,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2024-10-24 02:21:13,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2283. [2024-10-24 02:21:13,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2257 states have (on average 1.8489144882587505) internal successors, (4173), 2259 states have internal predecessors, (4173), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 02:21:13,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 4209 transitions. [2024-10-24 02:21:13,920 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 4209 transitions. Word has length 81 [2024-10-24 02:21:13,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:13,921 INFO L471 AbstractCegarLoop]: Abstraction has 2283 states and 4209 transitions. [2024-10-24 02:21:13,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:13,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 4209 transitions. [2024-10-24 02:21:13,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:13,924 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:13,924 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] [2024-10-24 02:21:13,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:21:13,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:13,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash -445583415, now seen corresponding path program 1 times [2024-10-24 02:21:13,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:13,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273657155] [2024-10-24 02:21:13,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:13,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:14,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:14,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:14,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:14,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:14,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:14,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:14,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273657155] [2024-10-24 02:21:14,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273657155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:14,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:14,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:21:14,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395110331] [2024-10-24 02:21:14,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:14,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:21:14,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:14,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:21:14,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:21:14,123 INFO L87 Difference]: Start difference. First operand 2283 states and 4209 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:15,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:15,053 INFO L93 Difference]: Finished difference Result 2690 states and 4863 transitions. [2024-10-24 02:21:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:21:15,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:15,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:15,062 INFO L225 Difference]: With dead ends: 2690 [2024-10-24 02:21:15,063 INFO L226 Difference]: Without dead ends: 2538 [2024-10-24 02:21:15,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:21:15,067 INFO L432 NwaCegarLoop]: 4086 mSDtfsCounter, 4562 mSDsluCounter, 12233 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4573 SdHoareTripleChecker+Valid, 16319 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:15,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4573 Valid, 16319 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:21:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2024-10-24 02:21:15,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2439. [2024-10-24 02:21:15,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2393 states have (on average 1.8340994567488509) internal successors, (4389), 2396 states have internal predecessors, (4389), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2024-10-24 02:21:15,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4454 transitions. [2024-10-24 02:21:15,203 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 4454 transitions. Word has length 81 [2024-10-24 02:21:15,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:15,203 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 4454 transitions. [2024-10-24 02:21:15,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:15,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 4454 transitions. [2024-10-24 02:21:15,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:15,210 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:15,210 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] [2024-10-24 02:21:15,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:21:15,211 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:15,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:15,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1863382519, now seen corresponding path program 1 times [2024-10-24 02:21:15,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:15,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676442943] [2024-10-24 02:21:15,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:15,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:15,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:15,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:15,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:15,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:15,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:15,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:15,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676442943] [2024-10-24 02:21:15,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676442943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:15,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:15,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:15,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448344909] [2024-10-24 02:21:15,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:15,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:15,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:15,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:15,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:15,382 INFO L87 Difference]: Start difference. First operand 2439 states and 4454 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:16,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:16,625 INFO L93 Difference]: Finished difference Result 3055 states and 5437 transitions. [2024-10-24 02:21:16,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:21:16,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:16,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:16,636 INFO L225 Difference]: With dead ends: 3055 [2024-10-24 02:21:16,636 INFO L226 Difference]: Without dead ends: 2747 [2024-10-24 02:21:16,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:21:16,640 INFO L432 NwaCegarLoop]: 4180 mSDtfsCounter, 4567 mSDsluCounter, 16521 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4578 SdHoareTripleChecker+Valid, 20701 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:16,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4578 Valid, 20701 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 02:21:16,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2024-10-24 02:21:16,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 2584. [2024-10-24 02:21:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2518 states have (on average 1.8200953137410643) internal successors, (4583), 2522 states have internal predecessors, (4583), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2024-10-24 02:21:16,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 4676 transitions. [2024-10-24 02:21:16,703 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 4676 transitions. Word has length 81 [2024-10-24 02:21:16,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:16,703 INFO L471 AbstractCegarLoop]: Abstraction has 2584 states and 4676 transitions. [2024-10-24 02:21:16,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 4676 transitions. [2024-10-24 02:21:16,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:16,709 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:16,709 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] [2024-10-24 02:21:16,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:21:16,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:16,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:16,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1215431051, now seen corresponding path program 1 times [2024-10-24 02:21:16,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:16,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43315604] [2024-10-24 02:21:16,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:16,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:16,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:16,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:16,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43315604] [2024-10-24 02:21:16,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43315604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:16,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:16,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:16,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311634608] [2024-10-24 02:21:16,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:16,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:16,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:16,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:16,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:16,852 INFO L87 Difference]: Start difference. First operand 2584 states and 4676 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:18,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:18,001 INFO L93 Difference]: Finished difference Result 3589 states and 6275 transitions. [2024-10-24 02:21:18,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:21:18,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:18,012 INFO L225 Difference]: With dead ends: 3589 [2024-10-24 02:21:18,012 INFO L226 Difference]: Without dead ends: 3136 [2024-10-24 02:21:18,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:21:18,018 INFO L432 NwaCegarLoop]: 4095 mSDtfsCounter, 4613 mSDsluCounter, 16302 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4624 SdHoareTripleChecker+Valid, 20397 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:18,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4624 Valid, 20397 Invalid, 1351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 02:21:18,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2024-10-24 02:21:18,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 2875. [2024-10-24 02:21:18,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2769 states have (on average 1.795594077284218) internal successors, (4972), 2775 states have internal predecessors, (4972), 70 states have call successors, (70), 30 states have call predecessors, (70), 34 states have return successors, (83), 73 states have call predecessors, (83), 70 states have call successors, (83) [2024-10-24 02:21:18,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 5125 transitions. [2024-10-24 02:21:18,124 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 5125 transitions. Word has length 81 [2024-10-24 02:21:18,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:18,125 INFO L471 AbstractCegarLoop]: Abstraction has 2875 states and 5125 transitions. [2024-10-24 02:21:18,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:18,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 5125 transitions. [2024-10-24 02:21:18,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:18,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:18,127 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] [2024-10-24 02:21:18,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:21:18,127 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:18,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:18,128 INFO L85 PathProgramCache]: Analyzing trace with hash 483463625, now seen corresponding path program 1 times [2024-10-24 02:21:18,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:18,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583408508] [2024-10-24 02:21:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:18,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:18,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:18,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:18,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583408508] [2024-10-24 02:21:18,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583408508] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:18,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:18,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:18,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882784293] [2024-10-24 02:21:18,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:18,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:18,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:18,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:18,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:18,283 INFO L87 Difference]: Start difference. First operand 2875 states and 5125 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:18,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:18,971 INFO L93 Difference]: Finished difference Result 3870 states and 6717 transitions. [2024-10-24 02:21:18,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:21:18,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:18,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:18,983 INFO L225 Difference]: With dead ends: 3870 [2024-10-24 02:21:18,983 INFO L226 Difference]: Without dead ends: 3126 [2024-10-24 02:21:18,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:21:18,987 INFO L432 NwaCegarLoop]: 4073 mSDtfsCounter, 4416 mSDsluCounter, 16172 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4428 SdHoareTripleChecker+Valid, 20245 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:18,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4428 Valid, 20245 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 02:21:18,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3126 states. [2024-10-24 02:21:19,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3126 to 2875. [2024-10-24 02:21:19,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2769 states have (on average 1.79378837125316) internal successors, (4967), 2775 states have internal predecessors, (4967), 70 states have call successors, (70), 30 states have call predecessors, (70), 34 states have return successors, (83), 73 states have call predecessors, (83), 70 states have call successors, (83) [2024-10-24 02:21:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 5120 transitions. [2024-10-24 02:21:19,101 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 5120 transitions. Word has length 81 [2024-10-24 02:21:19,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:19,102 INFO L471 AbstractCegarLoop]: Abstraction has 2875 states and 5120 transitions. [2024-10-24 02:21:19,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:19,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 5120 transitions. [2024-10-24 02:21:19,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:19,103 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:19,104 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] [2024-10-24 02:21:19,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:21:19,104 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:19,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:19,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1202716213, now seen corresponding path program 1 times [2024-10-24 02:21:19,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:19,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054837680] [2024-10-24 02:21:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:19,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:19,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:19,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:19,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054837680] [2024-10-24 02:21:19,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054837680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:19,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:19,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:19,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857076649] [2024-10-24 02:21:19,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:19,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:19,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:19,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:19,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:19,244 INFO L87 Difference]: Start difference. First operand 2875 states and 5120 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:20,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:20,633 INFO L93 Difference]: Finished difference Result 4829 states and 8192 transitions. [2024-10-24 02:21:20,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:20,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:20,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:20,648 INFO L225 Difference]: With dead ends: 4829 [2024-10-24 02:21:20,648 INFO L226 Difference]: Without dead ends: 4085 [2024-10-24 02:21:20,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:20,654 INFO L432 NwaCegarLoop]: 4176 mSDtfsCounter, 4711 mSDsluCounter, 16516 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4727 SdHoareTripleChecker+Valid, 20692 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:20,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4727 Valid, 20692 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 02:21:20,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2024-10-24 02:21:20,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 3459. [2024-10-24 02:21:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 3277 states have (on average 1.7552639609398841) internal successors, (5752), 3287 states have internal predecessors, (5752), 118 states have call successors, (118), 54 states have call predecessors, (118), 62 states have return successors, (153), 125 states have call predecessors, (153), 118 states have call successors, (153) [2024-10-24 02:21:20,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 6023 transitions. [2024-10-24 02:21:20,770 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 6023 transitions. Word has length 81 [2024-10-24 02:21:20,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:20,770 INFO L471 AbstractCegarLoop]: Abstraction has 3459 states and 6023 transitions. [2024-10-24 02:21:20,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:20,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 6023 transitions. [2024-10-24 02:21:20,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:20,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:20,772 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] [2024-10-24 02:21:20,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:21:20,772 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:20,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:20,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1620112819, now seen corresponding path program 1 times [2024-10-24 02:21:20,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:20,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072143824] [2024-10-24 02:21:20,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:20,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:20,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:20,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:20,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:20,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:20,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:20,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:20,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072143824] [2024-10-24 02:21:20,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072143824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:20,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:20,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:20,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227052104] [2024-10-24 02:21:20,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:20,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:20,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:20,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:20,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:20,869 INFO L87 Difference]: Start difference. First operand 3459 states and 6023 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:22,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:22,180 INFO L93 Difference]: Finished difference Result 6997 states and 11579 transitions. [2024-10-24 02:21:22,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:22,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:22,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:22,199 INFO L225 Difference]: With dead ends: 6997 [2024-10-24 02:21:22,199 INFO L226 Difference]: Without dead ends: 5669 [2024-10-24 02:21:22,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:22,205 INFO L432 NwaCegarLoop]: 4175 mSDtfsCounter, 4584 mSDsluCounter, 16513 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4594 SdHoareTripleChecker+Valid, 20688 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:22,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4594 Valid, 20688 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 02:21:22,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2024-10-24 02:21:22,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 4582. [2024-10-24 02:21:22,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4582 states, 4252 states have (on average 1.7064910630291628) internal successors, (7256), 4270 states have internal predecessors, (7256), 210 states have call successors, (210), 102 states have call predecessors, (210), 118 states have return successors, (307), 225 states have call predecessors, (307), 210 states have call successors, (307) [2024-10-24 02:21:22,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4582 states to 4582 states and 7773 transitions. [2024-10-24 02:21:22,362 INFO L78 Accepts]: Start accepts. Automaton has 4582 states and 7773 transitions. Word has length 81 [2024-10-24 02:21:22,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:22,362 INFO L471 AbstractCegarLoop]: Abstraction has 4582 states and 7773 transitions. [2024-10-24 02:21:22,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:22,362 INFO L276 IsEmpty]: Start isEmpty. Operand 4582 states and 7773 transitions. [2024-10-24 02:21:22,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:22,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:22,365 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] [2024-10-24 02:21:22,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:21:22,365 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:22,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:22,365 INFO L85 PathProgramCache]: Analyzing trace with hash -940840565, now seen corresponding path program 1 times [2024-10-24 02:21:22,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:22,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902255283] [2024-10-24 02:21:22,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:22,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:22,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:22,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:22,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:22,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:22,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:22,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:22,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:22,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902255283] [2024-10-24 02:21:22,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902255283] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:22,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:22,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:22,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302024464] [2024-10-24 02:21:22,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:22,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:22,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:22,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:22,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:22,478 INFO L87 Difference]: Start difference. First operand 4582 states and 7773 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:23,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:23,756 INFO L93 Difference]: Finished difference Result 11098 states and 18019 transitions. [2024-10-24 02:21:23,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:23,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:23,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:23,804 INFO L225 Difference]: With dead ends: 11098 [2024-10-24 02:21:23,805 INFO L226 Difference]: Without dead ends: 8647 [2024-10-24 02:21:23,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:23,815 INFO L432 NwaCegarLoop]: 4176 mSDtfsCounter, 4639 mSDsluCounter, 16516 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4655 SdHoareTripleChecker+Valid, 20692 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:23,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4655 Valid, 20692 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 02:21:23,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8647 states. [2024-10-24 02:21:24,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8647 to 6867. [2024-10-24 02:21:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6867 states, 6249 states have (on average 1.6549847975676109) internal successors, (10342), 6283 states have internal predecessors, (10342), 386 states have call successors, (386), 198 states have call predecessors, (386), 230 states have return successors, (661), 417 states have call predecessors, (661), 386 states have call successors, (661) [2024-10-24 02:21:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6867 states to 6867 states and 11389 transitions. [2024-10-24 02:21:24,152 INFO L78 Accepts]: Start accepts. Automaton has 6867 states and 11389 transitions. Word has length 81 [2024-10-24 02:21:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:24,153 INFO L471 AbstractCegarLoop]: Abstraction has 6867 states and 11389 transitions. [2024-10-24 02:21:24,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6867 states and 11389 transitions. [2024-10-24 02:21:24,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:24,158 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:24,158 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] [2024-10-24 02:21:24,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:21:24,158 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:24,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:24,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1020734093, now seen corresponding path program 1 times [2024-10-24 02:21:24,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:24,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336493523] [2024-10-24 02:21:24,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:24,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:24,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:24,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:24,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:24,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:24,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:24,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:24,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:24,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336493523] [2024-10-24 02:21:24,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336493523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:24,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:24,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:24,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192196062] [2024-10-24 02:21:24,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:24,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:24,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:24,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:24,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:24,276 INFO L87 Difference]: Start difference. First operand 6867 states and 11389 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:25,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:25,783 INFO L93 Difference]: Finished difference Result 19165 states and 30877 transitions. [2024-10-24 02:21:25,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:25,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:25,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:25,825 INFO L225 Difference]: With dead ends: 19165 [2024-10-24 02:21:25,825 INFO L226 Difference]: Without dead ends: 14429 [2024-10-24 02:21:25,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:25,840 INFO L432 NwaCegarLoop]: 4176 mSDtfsCounter, 4603 mSDsluCounter, 16516 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4619 SdHoareTripleChecker+Valid, 20692 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:25,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4619 Valid, 20692 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:21:25,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14429 states. [2024-10-24 02:21:26,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14429 to 11436. [2024-10-24 02:21:26,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11436 states, 10258 states have (on average 1.6127900175472802) internal successors, (16544), 10324 states have internal predecessors, (16544), 722 states have call successors, (722), 390 states have call predecessors, (722), 454 states have return successors, (1515), 785 states have call predecessors, (1515), 722 states have call successors, (1515) [2024-10-24 02:21:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11436 states to 11436 states and 18781 transitions. [2024-10-24 02:21:26,349 INFO L78 Accepts]: Start accepts. Automaton has 11436 states and 18781 transitions. Word has length 81 [2024-10-24 02:21:26,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:26,350 INFO L471 AbstractCegarLoop]: Abstraction has 11436 states and 18781 transitions. [2024-10-24 02:21:26,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 11436 states and 18781 transitions. [2024-10-24 02:21:26,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:26,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:26,363 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] [2024-10-24 02:21:26,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:21:26,364 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:26,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:26,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1222558027, now seen corresponding path program 1 times [2024-10-24 02:21:26,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:26,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619758248] [2024-10-24 02:21:26,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:26,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:26,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:26,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:26,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619758248] [2024-10-24 02:21:26,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619758248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:26,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:26,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:21:26,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101158332] [2024-10-24 02:21:26,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:26,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:21:26,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:26,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:21:26,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:26,479 INFO L87 Difference]: Start difference. First operand 11436 states and 18781 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:28,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:28,979 INFO L93 Difference]: Finished difference Result 34784 states and 56375 transitions. [2024-10-24 02:21:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:21:28,980 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:28,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:29,055 INFO L225 Difference]: With dead ends: 34784 [2024-10-24 02:21:29,055 INFO L226 Difference]: Without dead ends: 25479 [2024-10-24 02:21:29,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:21:29,085 INFO L432 NwaCegarLoop]: 4166 mSDtfsCounter, 4552 mSDsluCounter, 16504 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4562 SdHoareTripleChecker+Valid, 20670 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:29,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4562 Valid, 20670 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 02:21:29,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25479 states. [2024-10-24 02:21:30,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25479 to 20561. [2024-10-24 02:21:30,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20561 states, 18303 states have (on average 1.5847675244495438) internal successors, (29006), 18433 states have internal predecessors, (29006), 1358 states have call successors, (1358), 770 states have call predecessors, (1358), 898 states have return successors, (3673), 1485 states have call predecessors, (3673), 1358 states have call successors, (3673) [2024-10-24 02:21:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20561 states to 20561 states and 34037 transitions. [2024-10-24 02:21:30,205 INFO L78 Accepts]: Start accepts. Automaton has 20561 states and 34037 transitions. Word has length 81 [2024-10-24 02:21:30,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:30,205 INFO L471 AbstractCegarLoop]: Abstraction has 20561 states and 34037 transitions. [2024-10-24 02:21:30,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:30,206 INFO L276 IsEmpty]: Start isEmpty. Operand 20561 states and 34037 transitions. [2024-10-24 02:21:30,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 02:21:30,221 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:30,221 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] [2024-10-24 02:21:30,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:21:30,221 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:30,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:30,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1783257805, now seen corresponding path program 1 times [2024-10-24 02:21:30,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:30,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101997612] [2024-10-24 02:21:30,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:30,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:30,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:21:30,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:30,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101997612] [2024-10-24 02:21:30,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101997612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:30,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:21:30,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:21:30,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048975222] [2024-10-24 02:21:30,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:30,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:21:30,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:30,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:21:30,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:21:30,310 INFO L87 Difference]: Start difference. First operand 20561 states and 34037 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:32,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:32,748 INFO L93 Difference]: Finished difference Result 54256 states and 88376 transitions. [2024-10-24 02:21:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 02:21:32,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2024-10-24 02:21:32,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:32,866 INFO L225 Difference]: With dead ends: 54256 [2024-10-24 02:21:32,866 INFO L226 Difference]: Without dead ends: 35827 [2024-10-24 02:21:32,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-24 02:21:32,927 INFO L432 NwaCegarLoop]: 4213 mSDtfsCounter, 4743 mSDsluCounter, 12309 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 16522 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:32,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4772 Valid, 16522 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:21:32,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35827 states. [2024-10-24 02:21:34,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35827 to 29690. [2024-10-24 02:21:34,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29690 states, 26260 states have (on average 1.562909367859863) internal successors, (41042), 26519 states have internal predecessors, (41042), 2076 states have call successors, (2076), 1160 states have call predecessors, (2076), 1352 states have return successors, (5121), 2138 states have call predecessors, (5121), 2076 states have call successors, (5121) [2024-10-24 02:21:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29690 states to 29690 states and 48239 transitions. [2024-10-24 02:21:34,823 INFO L78 Accepts]: Start accepts. Automaton has 29690 states and 48239 transitions. Word has length 81 [2024-10-24 02:21:34,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:34,824 INFO L471 AbstractCegarLoop]: Abstraction has 29690 states and 48239 transitions. [2024-10-24 02:21:34,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 02:21:34,824 INFO L276 IsEmpty]: Start isEmpty. Operand 29690 states and 48239 transitions. [2024-10-24 02:21:34,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:21:34,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:34,876 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:21:34,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:21:34,877 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:34,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:34,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2026060594, now seen corresponding path program 1 times [2024-10-24 02:21:34,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:34,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038456081] [2024-10-24 02:21:34,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:34,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 02:21:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:21:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 02:21:34,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:34,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038456081] [2024-10-24 02:21:34,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038456081] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:34,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080049590] [2024-10-24 02:21:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:34,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:34,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:34,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:34,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 02:21:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:35,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:35,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-24 02:21:35,173 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:35,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080049590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:35,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:35,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 02:21:35,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308510919] [2024-10-24 02:21:35,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:35,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:35,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:35,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:35,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:35,175 INFO L87 Difference]: Start difference. First operand 29690 states and 48239 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:21:37,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:37,618 INFO L93 Difference]: Finished difference Result 84209 states and 136555 transitions. [2024-10-24 02:21:37,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:37,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 131 [2024-10-24 02:21:37,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:37,808 INFO L225 Difference]: With dead ends: 84209 [2024-10-24 02:21:37,808 INFO L226 Difference]: Without dead ends: 56651 [2024-10-24 02:21:37,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:37,868 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 4157 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4157 SdHoareTripleChecker+Valid, 4391 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:37,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4157 Valid, 4391 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:21:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56651 states. [2024-10-24 02:21:41,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56651 to 56455. [2024-10-24 02:21:41,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56455 states, 49707 states have (on average 1.5459995574064016) internal successors, (76847), 50223 states have internal predecessors, (76847), 4046 states have call successors, (4046), 2316 states have call predecessors, (4046), 2700 states have return successors, (10009), 4043 states have call predecessors, (10009), 4046 states have call successors, (10009) [2024-10-24 02:21:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56455 states to 56455 states and 90902 transitions. [2024-10-24 02:21:41,579 INFO L78 Accepts]: Start accepts. Automaton has 56455 states and 90902 transitions. Word has length 131 [2024-10-24 02:21:41,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:21:41,579 INFO L471 AbstractCegarLoop]: Abstraction has 56455 states and 90902 transitions. [2024-10-24 02:21:41,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:21:41,579 INFO L276 IsEmpty]: Start isEmpty. Operand 56455 states and 90902 transitions. [2024-10-24 02:21:41,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 02:21:41,650 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:21:41,651 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:21:41,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 02:21:41,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-24 02:21:41,852 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:21:41,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:21:41,853 INFO L85 PathProgramCache]: Analyzing trace with hash -746424850, now seen corresponding path program 1 times [2024-10-24 02:21:41,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:21:41,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681763050] [2024-10-24 02:21:41,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:41,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:21:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:41,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:21:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:41,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 02:21:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:41,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 02:21:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:41,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 02:21:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:41,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 02:21:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:41,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 02:21:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:41,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-24 02:21:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:41,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 02:21:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:41,950 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 02:21:41,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:21:41,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681763050] [2024-10-24 02:21:41,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681763050] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 02:21:41,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178670024] [2024-10-24 02:21:41,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:21:41,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 02:21:41,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:21:41,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 02:21:41,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 02:21:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:21:42,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 02:21:42,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 02:21:42,098 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 02:21:42,099 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 02:21:42,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178670024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:21:42,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 02:21:42,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-24 02:21:42,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009640654] [2024-10-24 02:21:42,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:21:42,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 02:21:42,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:21:42,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 02:21:42,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:42,101 INFO L87 Difference]: Start difference. First operand 56455 states and 90902 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 02:21:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:21:48,124 INFO L93 Difference]: Finished difference Result 163896 states and 264344 transitions. [2024-10-24 02:21:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 02:21:48,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 131 [2024-10-24 02:21:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:21:48,701 INFO L225 Difference]: With dead ends: 163896 [2024-10-24 02:21:48,701 INFO L226 Difference]: Without dead ends: 109573 [2024-10-24 02:21:48,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:21:48,837 INFO L432 NwaCegarLoop]: 4184 mSDtfsCounter, 4162 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 4391 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:21:48,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 4391 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 02:21:48,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109573 states.