./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.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_label46+token_ring.10.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24feb2eb47843fcae857e84ddd5aa58dae94843db909f56f0ca240268764bef9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:40:19,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:40:19,236 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:40:19,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:40:19,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:40:19,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:40:19,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:40:19,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:40:19,276 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:40:19,276 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:40:19,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:40:19,277 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:40:19,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:40:19,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:40:19,279 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:40:19,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:40:19,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:40:19,280 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:40:19,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:40:19,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:40:19,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:40:19,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:40:19,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:40:19,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:40:19,283 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:40:19,284 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:40:19,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:40:19,284 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:40:19,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:40:19,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:40:19,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:40:19,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:40:19,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:40:19,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:40:19,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:40:19,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:40:19,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:40:19,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:40:19,288 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:40:19,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:40:19,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:40:19,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:40:19,290 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24feb2eb47843fcae857e84ddd5aa58dae94843db909f56f0ca240268764bef9 [2024-11-18 15:40:19,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:40:19,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:40:19,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:40:19,589 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:40:19,589 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:40:19,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c [2024-11-18 15:40:21,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:40:21,688 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:40:21,689 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c [2024-11-18 15:40:21,753 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bedd920c/33f6dd421ddc4c48a60f14ad41d5f3d1/FLAGfcd3293ce [2024-11-18 15:40:21,771 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bedd920c/33f6dd421ddc4c48a60f14ad41d5f3d1 [2024-11-18 15:40:21,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:40:21,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:40:21,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:40:21,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:40:21,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:40:21,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:40:21" (1/1) ... [2024-11-18 15:40:21,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b14b961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:21, skipping insertion in model container [2024-11-18 15:40:21,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:40:21" (1/1) ... [2024-11-18 15:40:22,017 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:40:23,621 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c[382357,382370] [2024-11-18 15:40:23,651 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c[383339,383352] [2024-11-18 15:40:23,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:40:23,953 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:40:24,723 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c[382357,382370] [2024-11-18 15:40:24,730 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c[383339,383352] [2024-11-18 15:40:24,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:40:24,813 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:40:24,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24 WrapperNode [2024-11-18 15:40:24,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:40:24,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:40:24,816 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:40:24,816 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:40:24,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:24,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,380 INFO L138 Inliner]: procedures = 64, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13113 [2024-11-18 15:40:25,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:40:25,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:40:25,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:40:25,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:40:25,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,471 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,570 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 15:40:25,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,903 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:40:25,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:40:25,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:40:25,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:40:25,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (1/1) ... [2024-11-18 15:40:25,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:40:25,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:40:26,012 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 15:40:26,019 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 15:40:26,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:40:26,064 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 15:40:26,064 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 15:40:26,065 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 15:40:26,066 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 15:40:26,066 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 15:40:26,067 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 15:40:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 15:40:26,067 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 15:40:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 15:40:26,067 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 15:40:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 15:40:26,067 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 15:40:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:40:26,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:40:26,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:40:26,293 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:40:26,294 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:40:33,922 INFO L? ?]: Removed 1743 outVars from TransFormulas that were not future-live. [2024-11-18 15:40:33,922 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:40:33,998 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:40:33,998 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-18 15:40:33,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:40:33 BoogieIcfgContainer [2024-11-18 15:40:33,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:40:34,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:40:34,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:40:34,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:40:34,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:40:21" (1/3) ... [2024-11-18 15:40:34,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e32f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:40:34, skipping insertion in model container [2024-11-18 15:40:34,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:40:24" (2/3) ... [2024-11-18 15:40:34,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e32f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:40:34, skipping insertion in model container [2024-11-18 15:40:34,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:40:33" (3/3) ... [2024-11-18 15:40:34,008 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.10.cil-2.c [2024-11-18 15:40:34,030 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:40:34,030 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:40:34,167 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:40:34,179 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;@17a92195, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:40:34,179 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:40:34,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 2526 states, 2493 states have (on average 1.8419574809466506) internal successors, (4592), 2496 states have internal predecessors, (4592), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-18 15:40:34,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:40:34,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:34,224 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:34,225 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:34,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:34,232 INFO L85 PathProgramCache]: Analyzing trace with hash -2034921809, now seen corresponding path program 1 times [2024-11-18 15:40:34,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:34,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738564287] [2024-11-18 15:40:34,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:34,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:34,718 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 15:40:34,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738564287] [2024-11-18 15:40:34,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738564287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:34,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:34,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:40:34,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455787080] [2024-11-18 15:40:34,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:34,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:40:34,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:34,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:40:34,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:40:34,764 INFO L87 Difference]: Start difference. First operand has 2526 states, 2493 states have (on average 1.8419574809466506) internal successors, (4592), 2496 states have internal predecessors, (4592), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 15:40:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:40:34,986 INFO L93 Difference]: Finished difference Result 5042 states and 9261 transitions. [2024-11-18 15:40:34,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:40:34,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 156 [2024-11-18 15:40:34,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:40:35,026 INFO L225 Difference]: With dead ends: 5042 [2024-11-18 15:40:35,027 INFO L226 Difference]: Without dead ends: 2459 [2024-11-18 15:40:35,037 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 15:40:35,041 INFO L432 NwaCegarLoop]: 4549 mSDtfsCounter, 518 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 8571 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:40:35,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 8571 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:40:35,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2024-11-18 15:40:35,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2459. [2024-11-18 15:40:35,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2459 states, 2427 states have (on average 1.826534816646065) internal successors, (4433), 2429 states have internal predecessors, (4433), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-18 15:40:35,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2459 states to 2459 states and 4481 transitions. [2024-11-18 15:40:35,224 INFO L78 Accepts]: Start accepts. Automaton has 2459 states and 4481 transitions. Word has length 156 [2024-11-18 15:40:35,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:40:35,227 INFO L471 AbstractCegarLoop]: Abstraction has 2459 states and 4481 transitions. [2024-11-18 15:40:35,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 15:40:35,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2459 states and 4481 transitions. [2024-11-18 15:40:35,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:40:35,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:35,233 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:35,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:40:35,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:35,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:35,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1833490989, now seen corresponding path program 1 times [2024-11-18 15:40:35,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:35,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313021459] [2024-11-18 15:40:35,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:35,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:35,820 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 15:40:35,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:35,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313021459] [2024-11-18 15:40:35,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313021459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:35,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:35,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:40:35,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716519365] [2024-11-18 15:40:35,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:35,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:40:35,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:35,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:40:35,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:40:35,828 INFO L87 Difference]: Start difference. First operand 2459 states and 4481 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:36,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:40:36,812 INFO L93 Difference]: Finished difference Result 3163 states and 5600 transitions. [2024-11-18 15:40:36,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:40:36,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 15:40:36,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:40:36,831 INFO L225 Difference]: With dead ends: 3163 [2024-11-18 15:40:36,831 INFO L226 Difference]: Without dead ends: 2843 [2024-11-18 15:40:36,836 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 15:40:36,837 INFO L432 NwaCegarLoop]: 4650 mSDtfsCounter, 4955 mSDsluCounter, 14124 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4973 SdHoareTripleChecker+Valid, 18774 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:40:36,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4973 Valid, 18774 Invalid, 999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:40:36,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-11-18 15:40:36,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2797. [2024-11-18 15:40:36,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2736 states have (on average 1.7978801169590644) internal successors, (4919), 2740 states have internal predecessors, (4919), 45 states have call successors, (45), 12 states have call predecessors, (45), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-18 15:40:36,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 5016 transitions. [2024-11-18 15:40:36,925 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 5016 transitions. Word has length 156 [2024-11-18 15:40:36,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:40:36,925 INFO L471 AbstractCegarLoop]: Abstraction has 2797 states and 5016 transitions. [2024-11-18 15:40:36,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:36,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 5016 transitions. [2024-11-18 15:40:36,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:40:36,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:36,929 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:36,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:40:36,929 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:36,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:36,930 INFO L85 PathProgramCache]: Analyzing trace with hash 216050539, now seen corresponding path program 1 times [2024-11-18 15:40:36,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:36,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411772766] [2024-11-18 15:40:36,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:36,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:37,129 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 15:40:37,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:37,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411772766] [2024-11-18 15:40:37,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411772766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:37,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:37,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:40:37,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720506329] [2024-11-18 15:40:37,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:37,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:40:37,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:37,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:40:37,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:40:37,133 INFO L87 Difference]: Start difference. First operand 2797 states and 5016 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:37,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:40:37,973 INFO L93 Difference]: Finished difference Result 4184 states and 7220 transitions. [2024-11-18 15:40:37,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:40:37,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 15:40:37,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:40:37,992 INFO L225 Difference]: With dead ends: 4184 [2024-11-18 15:40:37,992 INFO L226 Difference]: Without dead ends: 3528 [2024-11-18 15:40:37,998 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 15:40:38,000 INFO L432 NwaCegarLoop]: 4569 mSDtfsCounter, 4951 mSDsluCounter, 13919 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4969 SdHoareTripleChecker+Valid, 18488 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:40:38,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4969 Valid, 18488 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:40:38,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2024-11-18 15:40:38,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3463. [2024-11-18 15:40:38,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3348 states have (on average 1.7556750298685782) internal successors, (5878), 3356 states have internal predecessors, (5878), 83 states have call successors, (83), 24 states have call predecessors, (83), 30 states have return successors, (106), 86 states have call predecessors, (106), 83 states have call successors, (106) [2024-11-18 15:40:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 6067 transitions. [2024-11-18 15:40:38,121 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 6067 transitions. Word has length 156 [2024-11-18 15:40:38,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:40:38,122 INFO L471 AbstractCegarLoop]: Abstraction has 3463 states and 6067 transitions. [2024-11-18 15:40:38,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:38,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 6067 transitions. [2024-11-18 15:40:38,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:40:38,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:38,126 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:38,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:40:38,126 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:38,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:38,127 INFO L85 PathProgramCache]: Analyzing trace with hash 579517037, now seen corresponding path program 1 times [2024-11-18 15:40:38,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:38,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026034791] [2024-11-18 15:40:38,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:38,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:38,332 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 15:40:38,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:38,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026034791] [2024-11-18 15:40:38,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026034791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:38,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:38,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:40:38,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338257499] [2024-11-18 15:40:38,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:38,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:40:38,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:38,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:40:38,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:40:38,336 INFO L87 Difference]: Start difference. First operand 3463 states and 6067 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:39,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:40:39,292 INFO L93 Difference]: Finished difference Result 6335 states and 10685 transitions. [2024-11-18 15:40:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:40:39,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 15:40:39,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:40:39,322 INFO L225 Difference]: With dead ends: 6335 [2024-11-18 15:40:39,322 INFO L226 Difference]: Without dead ends: 5013 [2024-11-18 15:40:39,332 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 15:40:39,333 INFO L432 NwaCegarLoop]: 4646 mSDtfsCounter, 4945 mSDsluCounter, 14098 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4963 SdHoareTripleChecker+Valid, 18744 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:40:39,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4963 Valid, 18744 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 15:40:39,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2024-11-18 15:40:39,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 4911. [2024-11-18 15:40:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4911 states, 4682 states have (on average 1.7103801794105082) internal successors, (8008), 4704 states have internal predecessors, (8008), 159 states have call successors, (159), 48 states have call predecessors, (159), 68 states have return successors, (238), 166 states have call predecessors, (238), 159 states have call successors, (238) [2024-11-18 15:40:39,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4911 states to 4911 states and 8405 transitions. [2024-11-18 15:40:39,495 INFO L78 Accepts]: Start accepts. Automaton has 4911 states and 8405 transitions. Word has length 156 [2024-11-18 15:40:39,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:40:39,496 INFO L471 AbstractCegarLoop]: Abstraction has 4911 states and 8405 transitions. [2024-11-18 15:40:39,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:39,497 INFO L276 IsEmpty]: Start isEmpty. Operand 4911 states and 8405 transitions. [2024-11-18 15:40:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:40:39,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:39,500 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:39,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:40:39,501 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:39,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:39,501 INFO L85 PathProgramCache]: Analyzing trace with hash 868336427, now seen corresponding path program 1 times [2024-11-18 15:40:39,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:39,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342305717] [2024-11-18 15:40:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:39,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:39,658 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 15:40:39,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:39,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342305717] [2024-11-18 15:40:39,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342305717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:39,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:39,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:40:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826522623] [2024-11-18 15:40:39,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:39,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:40:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:39,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:40:39,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:40:39,662 INFO L87 Difference]: Start difference. First operand 4911 states and 8405 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:40,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:40:40,586 INFO L93 Difference]: Finished difference Result 11082 states and 18547 transitions. [2024-11-18 15:40:40,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:40:40,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 15:40:40,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:40:40,631 INFO L225 Difference]: With dead ends: 11082 [2024-11-18 15:40:40,632 INFO L226 Difference]: Without dead ends: 8312 [2024-11-18 15:40:40,646 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 15:40:40,648 INFO L432 NwaCegarLoop]: 4644 mSDtfsCounter, 4940 mSDsluCounter, 14086 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4958 SdHoareTripleChecker+Valid, 18730 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:40:40,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4958 Valid, 18730 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:40:40,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8312 states. [2024-11-18 15:40:40,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8312 to 8139. [2024-11-18 15:40:40,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8139 states, 7664 states have (on average 1.6798016701461378) internal successors, (12874), 7732 states have internal predecessors, (12874), 311 states have call successors, (311), 96 states have call predecessors, (311), 162 states have return successors, (598), 326 states have call predecessors, (598), 311 states have call successors, (598) [2024-11-18 15:40:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8139 states to 8139 states and 13783 transitions. [2024-11-18 15:40:41,028 INFO L78 Accepts]: Start accepts. Automaton has 8139 states and 13783 transitions. Word has length 156 [2024-11-18 15:40:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:40:41,029 INFO L471 AbstractCegarLoop]: Abstraction has 8139 states and 13783 transitions. [2024-11-18 15:40:41,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand 8139 states and 13783 transitions. [2024-11-18 15:40:41,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:40:41,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:41,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:41,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:40:41,037 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:41,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:41,037 INFO L85 PathProgramCache]: Analyzing trace with hash 323463853, now seen corresponding path program 1 times [2024-11-18 15:40:41,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:41,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282689600] [2024-11-18 15:40:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:41,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:41,210 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 15:40:41,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:41,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282689600] [2024-11-18 15:40:41,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282689600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:41,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:41,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:40:41,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760717934] [2024-11-18 15:40:41,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:41,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:40:41,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:41,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:40:41,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:40:41,213 INFO L87 Difference]: Start difference. First operand 8139 states and 13783 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:42,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:40:42,225 INFO L93 Difference]: Finished difference Result 21845 states and 37061 transitions. [2024-11-18 15:40:42,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:40:42,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 15:40:42,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:40:42,306 INFO L225 Difference]: With dead ends: 21845 [2024-11-18 15:40:42,307 INFO L226 Difference]: Without dead ends: 15847 [2024-11-18 15:40:42,339 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 15:40:42,340 INFO L432 NwaCegarLoop]: 4640 mSDtfsCounter, 4935 mSDsluCounter, 14069 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 18709 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:40:42,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 18709 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:40:42,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15847 states. [2024-11-18 15:40:43,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15847 to 15539. [2024-11-18 15:40:43,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15539 states, 14518 states have (on average 1.675437388069982) internal successors, (24324), 14732 states have internal predecessors, (24324), 615 states have call successors, (615), 192 states have call predecessors, (615), 404 states have return successors, (1702), 646 states have call predecessors, (1702), 615 states have call successors, (1702) [2024-11-18 15:40:43,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15539 states to 15539 states and 26641 transitions. [2024-11-18 15:40:43,190 INFO L78 Accepts]: Start accepts. Automaton has 15539 states and 26641 transitions. Word has length 156 [2024-11-18 15:40:43,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:40:43,191 INFO L471 AbstractCegarLoop]: Abstraction has 15539 states and 26641 transitions. [2024-11-18 15:40:43,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:43,191 INFO L276 IsEmpty]: Start isEmpty. Operand 15539 states and 26641 transitions. [2024-11-18 15:40:43,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:40:43,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:43,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:43,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:40:43,203 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:43,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:43,204 INFO L85 PathProgramCache]: Analyzing trace with hash 998623979, now seen corresponding path program 1 times [2024-11-18 15:40:43,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:43,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409357042] [2024-11-18 15:40:43,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:43,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:43,369 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 15:40:43,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:43,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409357042] [2024-11-18 15:40:43,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409357042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:43,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:43,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:40:43,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010870612] [2024-11-18 15:40:43,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:43,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:40:43,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:43,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:40:43,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:40:43,372 INFO L87 Difference]: Start difference. First operand 15539 states and 26641 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:44,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:40:44,960 INFO L93 Difference]: Finished difference Result 46972 states and 82539 transitions. [2024-11-18 15:40:44,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:40:44,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 15:40:44,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:40:45,127 INFO L225 Difference]: With dead ends: 46972 [2024-11-18 15:40:45,128 INFO L226 Difference]: Without dead ends: 33574 [2024-11-18 15:40:45,200 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 15:40:45,201 INFO L432 NwaCegarLoop]: 4637 mSDtfsCounter, 4930 mSDsluCounter, 14056 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4948 SdHoareTripleChecker+Valid, 18693 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:40:45,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4948 Valid, 18693 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:40:45,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33574 states. [2024-11-18 15:40:46,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33574 to 33011. [2024-11-18 15:40:46,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33011 states, 30736 states have (on average 1.693974492451848) internal successors, (52066), 31404 states have internal predecessors, (52066), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 1050 states have return successors, (5446), 1286 states have call predecessors, (5446), 1223 states have call successors, (5446) [2024-11-18 15:40:47,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33011 states to 33011 states and 58735 transitions. [2024-11-18 15:40:47,029 INFO L78 Accepts]: Start accepts. Automaton has 33011 states and 58735 transitions. Word has length 156 [2024-11-18 15:40:47,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:40:47,030 INFO L471 AbstractCegarLoop]: Abstraction has 33011 states and 58735 transitions. [2024-11-18 15:40:47,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:47,032 INFO L276 IsEmpty]: Start isEmpty. Operand 33011 states and 58735 transitions. [2024-11-18 15:40:47,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:40:47,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:47,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:47,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:40:47,055 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:47,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:47,056 INFO L85 PathProgramCache]: Analyzing trace with hash 50572013, now seen corresponding path program 1 times [2024-11-18 15:40:47,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:47,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105493153] [2024-11-18 15:40:47,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:47,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:47,219 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 15:40:47,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:47,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105493153] [2024-11-18 15:40:47,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105493153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:47,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:47,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:40:47,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781090096] [2024-11-18 15:40:47,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:47,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:40:47,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:47,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:40:47,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:40:47,226 INFO L87 Difference]: Start difference. First operand 33011 states and 58735 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:40:48,896 INFO L93 Difference]: Finished difference Result 75547 states and 138976 transitions. [2024-11-18 15:40:48,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 15:40:48,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 15:40:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:40:49,137 INFO L225 Difference]: With dead ends: 75547 [2024-11-18 15:40:49,138 INFO L226 Difference]: Without dead ends: 44675 [2024-11-18 15:40:49,239 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 15:40:49,241 INFO L432 NwaCegarLoop]: 4343 mSDtfsCounter, 4657 mSDsluCounter, 8551 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4675 SdHoareTripleChecker+Valid, 12894 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:40:49,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4675 Valid, 12894 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:40:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44675 states. [2024-11-18 15:40:51,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44675 to 33011. [2024-11-18 15:40:51,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33011 states, 30736 states have (on average 1.6918597084851639) internal successors, (52001), 31404 states have internal predecessors, (52001), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 1050 states have return successors, (5446), 1286 states have call predecessors, (5446), 1223 states have call successors, (5446) [2024-11-18 15:40:51,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33011 states to 33011 states and 58670 transitions. [2024-11-18 15:40:51,464 INFO L78 Accepts]: Start accepts. Automaton has 33011 states and 58670 transitions. Word has length 156 [2024-11-18 15:40:51,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:40:51,467 INFO L471 AbstractCegarLoop]: Abstraction has 33011 states and 58670 transitions. [2024-11-18 15:40:51,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:51,468 INFO L276 IsEmpty]: Start isEmpty. Operand 33011 states and 58670 transitions. [2024-11-18 15:40:51,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:40:51,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:51,487 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:51,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:40:51,487 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:51,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:51,488 INFO L85 PathProgramCache]: Analyzing trace with hash -534199637, now seen corresponding path program 1 times [2024-11-18 15:40:51,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:51,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331205168] [2024-11-18 15:40:51,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:51,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:51,670 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 15:40:51,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:51,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331205168] [2024-11-18 15:40:51,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331205168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:51,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:51,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:40:51,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674321002] [2024-11-18 15:40:51,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:51,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:40:51,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:51,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:40:51,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:40:51,678 INFO L87 Difference]: Start difference. First operand 33011 states and 58670 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:54,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:40:54,158 INFO L93 Difference]: Finished difference Result 105813 states and 196163 transitions. [2024-11-18 15:40:54,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:40:54,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 15:40:54,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:40:54,686 INFO L225 Difference]: With dead ends: 105813 [2024-11-18 15:40:54,686 INFO L226 Difference]: Without dead ends: 74943 [2024-11-18 15:40:54,766 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 15:40:54,768 INFO L432 NwaCegarLoop]: 4626 mSDtfsCounter, 4914 mSDsluCounter, 14011 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4932 SdHoareTripleChecker+Valid, 18637 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:40:54,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4932 Valid, 18637 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:40:54,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74943 states. [2024-11-18 15:40:57,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74943 to 74031. [2024-11-18 15:40:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74031 states, 68762 states have (on average 1.7172711672144498) internal successors, (118083), 70824 states have internal predecessors, (118083), 2439 states have call successors, (2439), 768 states have call predecessors, (2439), 2828 states have return successors, (19078), 2566 states have call predecessors, (19078), 2439 states have call successors, (19078) [2024-11-18 15:40:58,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74031 states to 74031 states and 139600 transitions. [2024-11-18 15:40:58,276 INFO L78 Accepts]: Start accepts. Automaton has 74031 states and 139600 transitions. Word has length 156 [2024-11-18 15:40:58,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:40:58,277 INFO L471 AbstractCegarLoop]: Abstraction has 74031 states and 139600 transitions. [2024-11-18 15:40:58,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:40:58,279 INFO L276 IsEmpty]: Start isEmpty. Operand 74031 states and 139600 transitions. [2024-11-18 15:40:58,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:40:58,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:40:58,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:40:58,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:40:58,324 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:40:58,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:40:58,324 INFO L85 PathProgramCache]: Analyzing trace with hash -963857943, now seen corresponding path program 1 times [2024-11-18 15:40:58,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:40:58,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303256260] [2024-11-18 15:40:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:40:58,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:40:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:40:58,685 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 15:40:58,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:40:58,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303256260] [2024-11-18 15:40:58,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303256260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:40:58,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:40:58,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:40:58,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283829914] [2024-11-18 15:40:58,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:40:58,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:40:58,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:40:58,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:40:58,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:40:58,688 INFO L87 Difference]: Start difference. First operand 74031 states and 139600 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:41:03,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:41:03,814 INFO L93 Difference]: Finished difference Result 247860 states and 497129 transitions. [2024-11-18 15:41:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:41:03,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 156 [2024-11-18 15:41:03,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:41:05,297 INFO L225 Difference]: With dead ends: 247860 [2024-11-18 15:41:05,297 INFO L226 Difference]: Without dead ends: 175970 [2024-11-18 15:41:05,471 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 15:41:05,471 INFO L432 NwaCegarLoop]: 4563 mSDtfsCounter, 4910 mSDsluCounter, 13861 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4928 SdHoareTripleChecker+Valid, 18424 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:41:05,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4928 Valid, 18424 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:41:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175970 states. [2024-11-18 15:41:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175970 to 174291. [2024-11-18 15:41:15,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174291 states, 161576 states have (on average 1.746849779670248) internal successors, (282249), 167884 states have internal predecessors, (282249), 4871 states have call successors, (4871), 1536 states have call predecessors, (4871), 7842 states have return successors, (70918), 5126 states have call predecessors, (70918), 4871 states have call successors, (70918) [2024-11-18 15:41:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174291 states to 174291 states and 358038 transitions. [2024-11-18 15:41:16,750 INFO L78 Accepts]: Start accepts. Automaton has 174291 states and 358038 transitions. Word has length 156 [2024-11-18 15:41:16,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:41:16,750 INFO L471 AbstractCegarLoop]: Abstraction has 174291 states and 358038 transitions. [2024-11-18 15:41:16,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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 15:41:16,751 INFO L276 IsEmpty]: Start isEmpty. Operand 174291 states and 358038 transitions. [2024-11-18 15:41:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-18 15:41:16,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:41:16,809 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:41:16,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:41:16,809 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:41:16,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:41:16,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1670454549, now seen corresponding path program 1 times [2024-11-18 15:41:16,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:41:16,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957855963] [2024-11-18 15:41:16,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:41:16,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:41:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:41:16,940 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 15:41:16,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:41:16,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957855963] [2024-11-18 15:41:16,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957855963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:41:16,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:41:16,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:41:16,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829469192] [2024-11-18 15:41:16,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:41:16,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:41:16,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:41:16,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:41:16,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:41:16,943 INFO L87 Difference]: Start difference. First operand 174291 states and 358038 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 5 states have internal predecessors, (146), 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)