./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.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 a50787eee309f695181bc37c4f84940bb8fed2cb76457a2c563ef0feb29ebac8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:36:33,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:36:33,298 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:36:33,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:36:33,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:36:33,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:36:33,330 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:36:33,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:36:33,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:36:33,333 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:36:33,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:36:33,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:36:33,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:36:33,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:36:33,335 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:36:33,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:36:33,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:36:33,336 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:36:33,336 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:36:33,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:36:33,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:36:33,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:36:33,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:36:33,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:36:33,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:36:33,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:36:33,340 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:36:33,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:36:33,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:36:33,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:36:33,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:36:33,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:36:33,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:36:33,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:36:33,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:36:33,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:36:33,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:36:33,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:36:33,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:36:33,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:36:33,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:36:33,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:36:33,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a50787eee309f695181bc37c4f84940bb8fed2cb76457a2c563ef0feb29ebac8 [2024-11-18 15:36:33,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:36:33,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:36:33,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:36:33,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:36:33,581 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:36:33,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c [2024-11-18 15:36:34,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:36:35,572 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:36:35,572 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c [2024-11-18 15:36:35,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e366da1/52d3619d133b416a8ff9738ad228abd0/FLAG3522ac10e [2024-11-18 15:36:35,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e366da1/52d3619d133b416a8ff9738ad228abd0 [2024-11-18 15:36:35,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:36:35,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:36:35,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:36:35,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:36:35,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:36:35,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:36:35" (1/1) ... [2024-11-18 15:36:35,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3913c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:35, skipping insertion in model container [2024-11-18 15:36:35,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:36:35" (1/1) ... [2024-11-18 15:36:35,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:36:37,306 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c[377340,377353] [2024-11-18 15:36:37,336 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c[383339,383352] [2024-11-18 15:36:37,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:36:37,546 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:36:38,218 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c[377340,377353] [2024-11-18 15:36:38,225 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label44+token_ring.08.cil-1.c[383339,383352] [2024-11-18 15:36:38,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:36:38,326 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:36:38,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38 WrapperNode [2024-11-18 15:36:38,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:36:38,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:36:38,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:36:38,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:36:38,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:38,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:38,722 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12993 [2024-11-18 15:36:38,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:36:38,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:36:38,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:36:38,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:36:38,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:38,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:38,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:38,981 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 15:36:38,982 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:38,982 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:39,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:39,188 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:39,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:39,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:39,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:36:39,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:36:39,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:36:39,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:36:39,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (1/1) ... [2024-11-18 15:36:39,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:36:39,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:36:39,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 15:36:39,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 15:36:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:36:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 15:36:39,353 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 15:36:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 15:36:39,353 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 15:36:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 15:36:39,354 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 15:36:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 15:36:39,354 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 15:36:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 15:36:39,354 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 15:36:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 15:36:39,354 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 15:36:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:36:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:36:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:36:39,489 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:36:39,492 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:36:45,651 INFO L? ?]: Removed 1731 outVars from TransFormulas that were not future-live. [2024-11-18 15:36:45,652 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:36:45,710 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:36:45,710 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-18 15:36:45,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:36:45 BoogieIcfgContainer [2024-11-18 15:36:45,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:36:45,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:36:45,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:36:45,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:36:45,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:36:35" (1/3) ... [2024-11-18 15:36:45,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51afc1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:36:45, skipping insertion in model container [2024-11-18 15:36:45,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:36:38" (2/3) ... [2024-11-18 15:36:45,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51afc1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:36:45, skipping insertion in model container [2024-11-18 15:36:45,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:36:45" (3/3) ... [2024-11-18 15:36:45,719 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.08.cil-1.c [2024-11-18 15:36:45,733 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:36:45,733 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:36:45,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:36:45,845 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;@3c353e6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:36:45,845 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:36:45,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 2474 states, 2443 states have (on average 1.845272206303725) internal successors, (4508), 2446 states have internal predecessors, (4508), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-18 15:36:45,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:45,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:45,877 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:45,877 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:45,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:45,882 INFO L85 PathProgramCache]: Analyzing trace with hash -372695446, now seen corresponding path program 1 times [2024-11-18 15:36:45,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:45,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363011641] [2024-11-18 15:36:45,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:46,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:46,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:46,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363011641] [2024-11-18 15:36:46,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363011641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:46,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:46,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:36:46,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115328526] [2024-11-18 15:36:46,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:46,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:36:46,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:46,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:36:46,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:36:46,248 INFO L87 Difference]: Start difference. First operand has 2474 states, 2443 states have (on average 1.845272206303725) internal successors, (4508), 2446 states have internal predecessors, (4508), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:46,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:36:46,544 INFO L93 Difference]: Finished difference Result 4942 states and 9093 transitions. [2024-11-18 15:36:46,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:36:46,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:36:46,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:36:46,575 INFO L225 Difference]: With dead ends: 4942 [2024-11-18 15:36:46,576 INFO L226 Difference]: Without dead ends: 2407 [2024-11-18 15:36:46,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:36:46,587 INFO L432 NwaCegarLoop]: 4465 mSDtfsCounter, 438 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 8487 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:36:46,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 8487 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:36:46,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2024-11-18 15:36:46,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 2407. [2024-11-18 15:36:46,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2377 states have (on average 1.831299957930164) internal successors, (4353), 2379 states have internal predecessors, (4353), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-18 15:36:46,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4397 transitions. [2024-11-18 15:36:46,703 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 4397 transitions. Word has length 134 [2024-11-18 15:36:46,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:36:46,704 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 4397 transitions. [2024-11-18 15:36:46,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 4397 transitions. [2024-11-18 15:36:46,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:46,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:46,708 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:46,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:36:46,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:46,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:46,712 INFO L85 PathProgramCache]: Analyzing trace with hash 333901160, now seen corresponding path program 1 times [2024-11-18 15:36:46,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:46,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318488724] [2024-11-18 15:36:46,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:46,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:46,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:46,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:46,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318488724] [2024-11-18 15:36:46,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318488724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:46,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:46,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:36:46,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985041794] [2024-11-18 15:36:46,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:46,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:36:46,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:46,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:36:46,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:36:46,918 INFO L87 Difference]: Start difference. First operand 2407 states and 4397 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:47,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:36:47,422 INFO L93 Difference]: Finished difference Result 2979 states and 5289 transitions. [2024-11-18 15:36:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:36:47,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:36:47,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:36:47,433 INFO L225 Difference]: With dead ends: 2979 [2024-11-18 15:36:47,433 INFO L226 Difference]: Without dead ends: 2709 [2024-11-18 15:36:47,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:36:47,436 INFO L432 NwaCegarLoop]: 4300 mSDtfsCounter, 4777 mSDsluCounter, 8785 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 13085 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:36:47,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4793 Valid, 13085 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:36:47,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2024-11-18 15:36:47,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2688. [2024-11-18 15:36:47,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2688 states, 2634 states have (on average 1.8048595292331056) internal successors, (4754), 2637 states have internal predecessors, (4754), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2024-11-18 15:36:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 4833 transitions. [2024-11-18 15:36:47,488 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 4833 transitions. Word has length 134 [2024-11-18 15:36:47,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:36:47,488 INFO L471 AbstractCegarLoop]: Abstraction has 2688 states and 4833 transitions. [2024-11-18 15:36:47,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:47,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 4833 transitions. [2024-11-18 15:36:47,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:47,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:47,490 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:47,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:36:47,491 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:47,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:47,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1372602388, now seen corresponding path program 1 times [2024-11-18 15:36:47,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:47,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881632254] [2024-11-18 15:36:47,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:47,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:47,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:47,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:47,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881632254] [2024-11-18 15:36:47,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881632254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:47,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:47,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:36:47,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244669081] [2024-11-18 15:36:47,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:47,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:36:47,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:47,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:36:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:36:47,628 INFO L87 Difference]: Start difference. First operand 2688 states and 4833 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:48,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:36:48,545 INFO L93 Difference]: Finished difference Result 3594 states and 6258 transitions. [2024-11-18 15:36:48,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:36:48,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:36:48,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:36:48,558 INFO L225 Difference]: With dead ends: 3594 [2024-11-18 15:36:48,559 INFO L226 Difference]: Without dead ends: 3043 [2024-11-18 15:36:48,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:36:48,562 INFO L432 NwaCegarLoop]: 4534 mSDtfsCounter, 4779 mSDsluCounter, 13631 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 18165 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:36:48,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 18165 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:36:48,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2024-11-18 15:36:48,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 2950. [2024-11-18 15:36:48,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2872 states have (on average 1.7816852367688023) internal successors, (5117), 2876 states have internal predecessors, (5117), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (60), 57 states have call predecessors, (60), 56 states have call successors, (60) [2024-11-18 15:36:48,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 5233 transitions. [2024-11-18 15:36:48,638 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 5233 transitions. Word has length 134 [2024-11-18 15:36:48,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:36:48,639 INFO L471 AbstractCegarLoop]: Abstraction has 2950 states and 5233 transitions. [2024-11-18 15:36:48,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:48,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 5233 transitions. [2024-11-18 15:36:48,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:48,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:48,642 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:48,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:36:48,643 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:48,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:48,644 INFO L85 PathProgramCache]: Analyzing trace with hash 629283882, now seen corresponding path program 1 times [2024-11-18 15:36:48,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:48,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114101599] [2024-11-18 15:36:48,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:48,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:48,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:48,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:48,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114101599] [2024-11-18 15:36:48,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114101599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:48,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:48,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:36:48,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105385147] [2024-11-18 15:36:48,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:48,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:36:48,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:48,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:36:48,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:36:48,859 INFO L87 Difference]: Start difference. First operand 2950 states and 5233 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:49,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:36:49,454 INFO L93 Difference]: Finished difference Result 4426 states and 7549 transitions. [2024-11-18 15:36:49,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:36:49,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:36:49,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:36:49,471 INFO L225 Difference]: With dead ends: 4426 [2024-11-18 15:36:49,471 INFO L226 Difference]: Without dead ends: 3613 [2024-11-18 15:36:49,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:36:49,478 INFO L432 NwaCegarLoop]: 4326 mSDtfsCounter, 4798 mSDsluCounter, 13132 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4814 SdHoareTripleChecker+Valid, 17458 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:36:49,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4814 Valid, 17458 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:36:49,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3613 states. [2024-11-18 15:36:49,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3613 to 3507. [2024-11-18 15:36:49,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 3379 states have (on average 1.7466706126072802) internal successors, (5902), 3387 states have internal predecessors, (5902), 90 states have call successors, (90), 30 states have call predecessors, (90), 36 states have return successors, (106), 93 states have call predecessors, (106), 90 states have call successors, (106) [2024-11-18 15:36:49,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 6098 transitions. [2024-11-18 15:36:49,574 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 6098 transitions. Word has length 134 [2024-11-18 15:36:49,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:36:49,575 INFO L471 AbstractCegarLoop]: Abstraction has 3507 states and 6098 transitions. [2024-11-18 15:36:49,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 6098 transitions. [2024-11-18 15:36:49,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:49,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:49,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:49,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:36:49,579 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:49,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:49,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1938538452, now seen corresponding path program 1 times [2024-11-18 15:36:49,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:49,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608159141] [2024-11-18 15:36:49,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:49,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:49,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:49,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:49,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608159141] [2024-11-18 15:36:49,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608159141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:49,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:49,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:36:49,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010135666] [2024-11-18 15:36:49,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:49,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:36:49,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:49,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:36:49,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:36:49,709 INFO L87 Difference]: Start difference. First operand 3507 states and 6098 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:50,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:36:50,732 INFO L93 Difference]: Finished difference Result 6217 states and 10388 transitions. [2024-11-18 15:36:50,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:36:50,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:36:50,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:36:50,775 INFO L225 Difference]: With dead ends: 6217 [2024-11-18 15:36:50,775 INFO L226 Difference]: Without dead ends: 4847 [2024-11-18 15:36:50,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:36:50,785 INFO L432 NwaCegarLoop]: 4527 mSDtfsCounter, 4769 mSDsluCounter, 13610 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4785 SdHoareTripleChecker+Valid, 18137 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:36:50,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4785 Valid, 18137 Invalid, 846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:36:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2024-11-18 15:36:50,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4714. [2024-11-18 15:36:50,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4714 states, 4480 states have (on average 1.7049107142857143) internal successors, (7638), 4502 states have internal predecessors, (7638), 158 states have call successors, (158), 54 states have call predecessors, (158), 74 states have return successors, (222), 165 states have call predecessors, (222), 158 states have call successors, (222) [2024-11-18 15:36:50,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4714 states to 4714 states and 8018 transitions. [2024-11-18 15:36:50,999 INFO L78 Accepts]: Start accepts. Automaton has 4714 states and 8018 transitions. Word has length 134 [2024-11-18 15:36:51,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:36:51,000 INFO L471 AbstractCegarLoop]: Abstraction has 4714 states and 8018 transitions. [2024-11-18 15:36:51,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:51,000 INFO L276 IsEmpty]: Start isEmpty. Operand 4714 states and 8018 transitions. [2024-11-18 15:36:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:51,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:51,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:51,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:36:51,004 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:51,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:51,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1467182102, now seen corresponding path program 1 times [2024-11-18 15:36:51,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:51,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305361840] [2024-11-18 15:36:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:51,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:51,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:51,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:51,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305361840] [2024-11-18 15:36:51,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305361840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:51,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:51,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:36:51,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064013065] [2024-11-18 15:36:51,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:51,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:36:51,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:51,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:36:51,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:36:51,166 INFO L87 Difference]: Start difference. First operand 4714 states and 8018 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:52,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:36:52,241 INFO L93 Difference]: Finished difference Result 10114 states and 16738 transitions. [2024-11-18 15:36:52,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:36:52,241 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:36:52,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:36:52,280 INFO L225 Difference]: With dead ends: 10114 [2024-11-18 15:36:52,281 INFO L226 Difference]: Without dead ends: 7537 [2024-11-18 15:36:52,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:36:52,294 INFO L432 NwaCegarLoop]: 4520 mSDtfsCounter, 4761 mSDsluCounter, 13591 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4777 SdHoareTripleChecker+Valid, 18111 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:36:52,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4777 Valid, 18111 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:36:52,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7537 states. [2024-11-18 15:36:52,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7537 to 7362. [2024-11-18 15:36:52,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7362 states, 6898 states have (on average 1.6700492896491737) internal successors, (11520), 6966 states have internal predecessors, (11520), 294 states have call successors, (294), 102 states have call predecessors, (294), 168 states have return successors, (550), 309 states have call predecessors, (550), 294 states have call successors, (550) [2024-11-18 15:36:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7362 states to 7362 states and 12364 transitions. [2024-11-18 15:36:52,769 INFO L78 Accepts]: Start accepts. Automaton has 7362 states and 12364 transitions. Word has length 134 [2024-11-18 15:36:52,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:36:52,773 INFO L471 AbstractCegarLoop]: Abstraction has 7362 states and 12364 transitions. [2024-11-18 15:36:52,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:52,774 INFO L276 IsEmpty]: Start isEmpty. Operand 7362 states and 12364 transitions. [2024-11-18 15:36:52,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:52,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:52,781 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:52,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:36:52,782 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:52,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:52,782 INFO L85 PathProgramCache]: Analyzing trace with hash 696434472, now seen corresponding path program 1 times [2024-11-18 15:36:52,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:52,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557143319] [2024-11-18 15:36:52,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:52,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:52,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:52,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:52,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557143319] [2024-11-18 15:36:52,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557143319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:52,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:52,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:36:52,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091993429] [2024-11-18 15:36:52,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:52,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:36:52,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:52,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:36:52,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:36:52,889 INFO L87 Difference]: Start difference. First operand 7362 states and 12364 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:53,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:36:53,609 INFO L93 Difference]: Finished difference Result 18826 states and 31526 transitions. [2024-11-18 15:36:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:36:53,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:36:53,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:36:53,660 INFO L225 Difference]: With dead ends: 18826 [2024-11-18 15:36:53,660 INFO L226 Difference]: Without dead ends: 13601 [2024-11-18 15:36:53,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:36:53,685 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 4756 mSDsluCounter, 13582 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 18099 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:36:53,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4772 Valid, 18099 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:36:53,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13601 states. [2024-11-18 15:36:54,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13601 to 13333. [2024-11-18 15:36:54,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13333 states, 12355 states have (on average 1.6563334682314852) internal successors, (20464), 12569 states have internal predecessors, (20464), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-11-18 15:36:54,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13333 states to 13333 states and 22620 transitions. [2024-11-18 15:36:54,241 INFO L78 Accepts]: Start accepts. Automaton has 13333 states and 22620 transitions. Word has length 134 [2024-11-18 15:36:54,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:36:54,241 INFO L471 AbstractCegarLoop]: Abstraction has 13333 states and 22620 transitions. [2024-11-18 15:36:54,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:54,242 INFO L276 IsEmpty]: Start isEmpty. Operand 13333 states and 22620 transitions. [2024-11-18 15:36:54,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:54,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:54,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:54,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:36:54,248 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:54,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:54,248 INFO L85 PathProgramCache]: Analyzing trace with hash -342150102, now seen corresponding path program 1 times [2024-11-18 15:36:54,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:54,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976472688] [2024-11-18 15:36:54,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:54,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:54,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:54,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976472688] [2024-11-18 15:36:54,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976472688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:54,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:54,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:36:54,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811542648] [2024-11-18 15:36:54,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:54,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:36:54,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:54,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:36:54,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:36:54,322 INFO L87 Difference]: Start difference. First operand 13333 states and 22620 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:54,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:36:54,943 INFO L93 Difference]: Finished difference Result 27469 states and 47493 transitions. [2024-11-18 15:36:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:36:54,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:36:54,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:36:54,989 INFO L225 Difference]: With dead ends: 27469 [2024-11-18 15:36:54,989 INFO L226 Difference]: Without dead ends: 16273 [2024-11-18 15:36:55,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:36:55,017 INFO L432 NwaCegarLoop]: 4277 mSDtfsCounter, 4537 mSDsluCounter, 8439 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 12716 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:36:55,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 12716 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:36:55,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16273 states. [2024-11-18 15:36:55,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16273 to 13333. [2024-11-18 15:36:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13333 states, 12355 states have (on average 1.6536624848239578) internal successors, (20431), 12569 states have internal predecessors, (20431), 566 states have call successors, (566), 198 states have call predecessors, (566), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-11-18 15:36:55,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13333 states to 13333 states and 22587 transitions. [2024-11-18 15:36:55,396 INFO L78 Accepts]: Start accepts. Automaton has 13333 states and 22587 transitions. Word has length 134 [2024-11-18 15:36:55,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:36:55,396 INFO L471 AbstractCegarLoop]: Abstraction has 13333 states and 22587 transitions. [2024-11-18 15:36:55,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 13333 states and 22587 transitions. [2024-11-18 15:36:55,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:55,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:55,403 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:55,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:36:55,403 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:55,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:55,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1979651816, now seen corresponding path program 1 times [2024-11-18 15:36:55,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:55,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725625409] [2024-11-18 15:36:55,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:55,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:55,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:55,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:55,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725625409] [2024-11-18 15:36:55,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725625409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:55,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:55,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:36:55,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978187040] [2024-11-18 15:36:55,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:55,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:36:55,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:55,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:36:55,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:36:55,637 INFO L87 Difference]: Start difference. First operand 13333 states and 22587 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:57,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:36:57,065 INFO L93 Difference]: Finished difference Result 38497 states and 66745 transitions. [2024-11-18 15:36:57,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:36:57,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:36:57,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:36:57,150 INFO L225 Difference]: With dead ends: 38497 [2024-11-18 15:36:57,151 INFO L226 Difference]: Without dead ends: 27301 [2024-11-18 15:36:57,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:36:57,182 INFO L432 NwaCegarLoop]: 4509 mSDtfsCounter, 4743 mSDsluCounter, 13559 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 18068 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:36:57,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4759 Valid, 18068 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:36:57,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27301 states. [2024-11-18 15:36:58,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27301 to 26895. [2024-11-18 15:36:58,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26895 states, 24727 states have (on average 1.6591175637966595) internal successors, (41025), 25395 states have internal predecessors, (41025), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 1056 states have return successors, (5206), 1173 states have call predecessors, (5206), 1110 states have call successors, (5206) [2024-11-18 15:36:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26895 states to 26895 states and 47341 transitions. [2024-11-18 15:36:58,339 INFO L78 Accepts]: Start accepts. Automaton has 26895 states and 47341 transitions. Word has length 134 [2024-11-18 15:36:58,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:36:58,339 INFO L471 AbstractCegarLoop]: Abstraction has 26895 states and 47341 transitions. [2024-11-18 15:36:58,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:36:58,339 INFO L276 IsEmpty]: Start isEmpty. Operand 26895 states and 47341 transitions. [2024-11-18 15:36:58,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:36:58,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:36:58,348 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:36:58,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:36:58,348 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:36:58,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:36:58,352 INFO L85 PathProgramCache]: Analyzing trace with hash -162208662, now seen corresponding path program 1 times [2024-11-18 15:36:58,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:36:58,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375867463] [2024-11-18 15:36:58,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:36:58,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:36:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:36:58,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:36:58,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:36:58,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375867463] [2024-11-18 15:36:58,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375867463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:36:58,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:36:58,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:36:58,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348748934] [2024-11-18 15:36:58,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:36:58,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:36:58,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:36:58,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:36:58,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:36:58,466 INFO L87 Difference]: Start difference. First operand 26895 states and 47341 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:37:01,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:37:01,344 INFO L93 Difference]: Finished difference Result 87989 states and 161418 transitions. [2024-11-18 15:37:01,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:37:01,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:37:01,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:37:01,798 INFO L225 Difference]: With dead ends: 87989 [2024-11-18 15:37:01,798 INFO L226 Difference]: Without dead ends: 63231 [2024-11-18 15:37:01,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:37:01,897 INFO L432 NwaCegarLoop]: 4504 mSDtfsCounter, 4992 mSDsluCounter, 13539 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5017 SdHoareTripleChecker+Valid, 18043 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:37:01,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5017 Valid, 18043 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:37:01,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63231 states. [2024-11-18 15:37:04,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63231 to 58444. [2024-11-18 15:37:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58444 states, 53474 states have (on average 1.6798631110446198) internal successors, (89829), 55536 states have internal predecessors, (89829), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 2834 states have return successors, (18518), 2261 states have call predecessors, (18518), 2134 states have call successors, (18518) [2024-11-18 15:37:05,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58444 states to 58444 states and 110481 transitions. [2024-11-18 15:37:05,672 INFO L78 Accepts]: Start accepts. Automaton has 58444 states and 110481 transitions. Word has length 134 [2024-11-18 15:37:05,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:37:05,672 INFO L471 AbstractCegarLoop]: Abstraction has 58444 states and 110481 transitions. [2024-11-18 15:37:05,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:37:05,673 INFO L276 IsEmpty]: Start isEmpty. Operand 58444 states and 110481 transitions. [2024-11-18 15:37:05,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:37:05,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:37:05,716 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:37:05,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:37:05,717 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:37:05,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:37:05,718 INFO L85 PathProgramCache]: Analyzing trace with hash -785490264, now seen corresponding path program 1 times [2024-11-18 15:37:05,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:37:05,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205827896] [2024-11-18 15:37:05,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:37:05,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:37:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:37:05,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:37:05,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:37:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205827896] [2024-11-18 15:37:05,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205827896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:37:05,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:37:05,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:37:05,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588538754] [2024-11-18 15:37:05,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:37:05,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:37:05,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:37:05,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:37:05,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:37:05,917 INFO L87 Difference]: Start difference. First operand 58444 states and 110481 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:37:11,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:37:11,071 INFO L93 Difference]: Finished difference Result 198418 states and 401260 transitions. [2024-11-18 15:37:11,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:37:11,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-18 15:37:11,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:37:12,026 INFO L225 Difference]: With dead ends: 198418 [2024-11-18 15:37:12,030 INFO L226 Difference]: Without dead ends: 142111 [2024-11-18 15:37:12,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:37:12,197 INFO L432 NwaCegarLoop]: 4326 mSDtfsCounter, 4840 mSDsluCounter, 13098 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4855 SdHoareTripleChecker+Valid, 17424 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 15:37:12,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4855 Valid, 17424 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 15:37:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142111 states. [2024-11-18 15:37:19,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142111 to 133103. [2024-11-18 15:37:19,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133103 states, 121135 states have (on average 1.7058075700664548) internal successors, (206633), 127443 states have internal predecessors, (206633), 4118 states have call successors, (4118), 1542 states have call predecessors, (4118), 7848 states have return successors, (69654), 4373 states have call predecessors, (69654), 4118 states have call successors, (69654) [2024-11-18 15:37:21,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133103 states to 133103 states and 280405 transitions. [2024-11-18 15:37:21,222 INFO L78 Accepts]: Start accepts. Automaton has 133103 states and 280405 transitions. Word has length 134 [2024-11-18 15:37:21,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:37:21,224 INFO L471 AbstractCegarLoop]: Abstraction has 133103 states and 280405 transitions. [2024-11-18 15:37:21,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 15:37:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 133103 states and 280405 transitions. [2024-11-18 15:37:21,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 15:37:21,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:37:21,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:37:21,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:37:21,320 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:37:21,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:37:21,321 INFO L85 PathProgramCache]: Analyzing trace with hash -667048790, now seen corresponding path program 1 times [2024-11-18 15:37:21,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:37:21,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244235201] [2024-11-18 15:37:21,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:37:21,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:37:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:37:21,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:37:21,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:37:21,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244235201] [2024-11-18 15:37:21,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244235201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:37:21,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:37:21,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:37:21,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264715953] [2024-11-18 15:37:21,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:37:21,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:37:21,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:37:21,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:37:21,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:37:21,556 INFO L87 Difference]: Start difference. First operand 133103 states and 280405 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)