./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.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 9803c0f5a18eedfb3ad16cce49537bdc49a8790d5c61a825350a143730d73381 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:19:17,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:19:17,730 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:19:17,734 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:19:17,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:19:17,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:19:17,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:19:17,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:19:17,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:19:17,773 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:19:17,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:19:17,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:19:17,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:19:17,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:19:17,774 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:19:17,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:19:17,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:19:17,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:19:17,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:19:17,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:19:17,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:19:17,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:19:17,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:19:17,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:19:17,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:19:17,777 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:19:17,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:19:17,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:19:17,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:19:17,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:19:17,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:19:17,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:19:17,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:19:17,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:19:17,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:19:17,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:19:17,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:19:17,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:19:17,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:19:17,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:19:17,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:19:17,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:19:17,781 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9803c0f5a18eedfb3ad16cce49537bdc49a8790d5c61a825350a143730d73381 [2024-11-22 03:19:17,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:19:18,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:19:18,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:19:18,021 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:19:18,021 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:19:18,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-2.c [2024-11-22 03:19:19,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:19:19,757 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:19:19,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.08.cil-2.c [2024-11-22 03:19:19,818 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6a98092/1dfdd6f368384ea3ad608e3a7f76ee9a/FLAG56716a293 [2024-11-22 03:19:19,833 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6a98092/1dfdd6f368384ea3ad608e3a7f76ee9a [2024-11-22 03:19:19,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:19:19,836 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:19:19,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:19:19,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:19:19,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:19:19,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:19:19" (1/1) ... [2024-11-22 03:19:19,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a5bfa15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:19, skipping insertion in model container [2024-11-22 03:19:19,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:19:19" (1/1) ... [2024-11-22 03:19:20,002 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:19:21,207 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_label42+token_ring.08.cil-2.c[378560,378573] [2024-11-22 03:19:21,232 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_label42+token_ring.08.cil-2.c[383339,383352] [2024-11-22 03:19:21,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:19:21,421 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:19:21,995 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_label42+token_ring.08.cil-2.c[378560,378573] [2024-11-22 03:19:22,000 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_label42+token_ring.08.cil-2.c[383339,383352] [2024-11-22 03:19:22,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:19:22,064 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:19:22,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22 WrapperNode [2024-11-22 03:19:22,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:19:22,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:19:22,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:19:22,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:19:22,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,466 INFO L138 Inliner]: procedures = 60, calls = 66, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 12999 [2024-11-22 03:19:22,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:19:22,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:19:22,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:19:22,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:19:22,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,523 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,682 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 03:19:22,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:19:22,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:19:22,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:19:22,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:19:22,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (1/1) ... [2024-11-22 03:19:22,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:19:22,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:19:22,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 03:19:23,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 03:19:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:19:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 03:19:23,157 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 03:19:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 03:19:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 03:19:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 03:19:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 03:19:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-22 03:19:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-22 03:19:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 03:19:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 03:19:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 03:19:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 03:19:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 03:19:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 03:19:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:19:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:19:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:19:23,307 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:19:23,312 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:19:29,519 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-11-22 03:19:29,519 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:19:29,572 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:19:29,572 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-22 03:19:29,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:19:29 BoogieIcfgContainer [2024-11-22 03:19:29,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:19:29,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:19:29,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:19:29,577 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:19:29,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:19:19" (1/3) ... [2024-11-22 03:19:29,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fc7372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:19:29, skipping insertion in model container [2024-11-22 03:19:29,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:22" (2/3) ... [2024-11-22 03:19:29,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fc7372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:19:29, skipping insertion in model container [2024-11-22 03:19:29,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:19:29" (3/3) ... [2024-11-22 03:19:29,579 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.08.cil-2.c [2024-11-22 03:19:29,592 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:19:29,592 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:19:29,685 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:19:29,691 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;@4b614c27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:19:29,691 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:19:29,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 2482 states, 2448 states have (on average 1.8455882352941178) internal successors, (4518), 2453 states have internal predecessors, (4518), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 03:19:29,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:29,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:29,722 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] [2024-11-22 03:19:29,722 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:29,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:29,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1791270743, now seen corresponding path program 1 times [2024-11-22 03:19:29,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:29,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378461409] [2024-11-22 03:19:29,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:29,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:30,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:30,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378461409] [2024-11-22 03:19:30,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378461409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:30,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:30,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:19:30,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669110016] [2024-11-22 03:19:30,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:30,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:19:30,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:30,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:19:30,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:19:30,100 INFO L87 Difference]: Start difference. First operand has 2482 states, 2448 states have (on average 1.8455882352941178) internal successors, (4518), 2453 states have internal predecessors, (4518), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:30,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:30,239 INFO L93 Difference]: Finished difference Result 4957 states and 9121 transitions. [2024-11-22 03:19:30,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:19:30,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:30,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:30,262 INFO L225 Difference]: With dead ends: 4957 [2024-11-22 03:19:30,262 INFO L226 Difference]: Without dead ends: 2414 [2024-11-22 03:19:30,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:19:30,271 INFO L432 NwaCegarLoop]: 4477 mSDtfsCounter, 450 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 8499 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:30,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 8499 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:19:30,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2024-11-22 03:19:30,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2414. [2024-11-22 03:19:30,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2382 states have (on average 1.8316540722082284) internal successors, (4363), 2385 states have internal predecessors, (4363), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 03:19:30,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 4409 transitions. [2024-11-22 03:19:30,381 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 4409 transitions. Word has length 135 [2024-11-22 03:19:30,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:30,383 INFO L471 AbstractCegarLoop]: Abstraction has 2414 states and 4409 transitions. [2024-11-22 03:19:30,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:30,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 4409 transitions. [2024-11-22 03:19:30,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:30,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:30,393 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] [2024-11-22 03:19:30,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:19:30,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:30,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:30,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1361612437, now seen corresponding path program 1 times [2024-11-22 03:19:30,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:30,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733688678] [2024-11-22 03:19:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:30,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:30,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:30,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:30,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733688678] [2024-11-22 03:19:30,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733688678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:30,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:30,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:19:30,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722379379] [2024-11-22 03:19:30,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:30,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:19:30,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:30,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:19:30,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:19:30,632 INFO L87 Difference]: Start difference. First operand 2414 states and 4409 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:31,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:31,205 INFO L93 Difference]: Finished difference Result 3000 states and 5325 transitions. [2024-11-22 03:19:31,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:19:31,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:31,223 INFO L225 Difference]: With dead ends: 3000 [2024-11-22 03:19:31,227 INFO L226 Difference]: Without dead ends: 2723 [2024-11-22 03:19:31,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:31,231 INFO L432 NwaCegarLoop]: 4311 mSDtfsCounter, 4791 mSDsluCounter, 8814 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4807 SdHoareTripleChecker+Valid, 13125 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:31,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4807 Valid, 13125 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:31,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2024-11-22 03:19:31,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2700. [2024-11-22 03:19:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2644 states have (on average 1.8055975794251136) internal successors, (4774), 2648 states have internal predecessors, (4774), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2024-11-22 03:19:31,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 4855 transitions. [2024-11-22 03:19:31,365 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 4855 transitions. Word has length 135 [2024-11-22 03:19:31,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:31,366 INFO L471 AbstractCegarLoop]: Abstraction has 2700 states and 4855 transitions. [2024-11-22 03:19:31,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:31,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 4855 transitions. [2024-11-22 03:19:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:31,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:31,368 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] [2024-11-22 03:19:31,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:19:31,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:31,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:31,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1571352423, now seen corresponding path program 1 times [2024-11-22 03:19:31,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:31,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551148814] [2024-11-22 03:19:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:31,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:31,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:31,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:31,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551148814] [2024-11-22 03:19:31,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551148814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:31,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:31,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:31,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113948411] [2024-11-22 03:19:31,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:31,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:31,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:31,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:31,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:31,547 INFO L87 Difference]: Start difference. First operand 2700 states and 4855 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:32,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:32,164 INFO L93 Difference]: Finished difference Result 3625 states and 6314 transitions. [2024-11-22 03:19:32,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:32,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:32,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:32,175 INFO L225 Difference]: With dead ends: 3625 [2024-11-22 03:19:32,175 INFO L226 Difference]: Without dead ends: 3062 [2024-11-22 03:19:32,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:32,179 INFO L432 NwaCegarLoop]: 4556 mSDtfsCounter, 4792 mSDsluCounter, 13696 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4808 SdHoareTripleChecker+Valid, 18252 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:32,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4808 Valid, 18252 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:19:32,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2024-11-22 03:19:32,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2967. [2024-11-22 03:19:32,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2887 states have (on average 1.7828195358503638) internal successors, (5147), 2892 states have internal predecessors, (5147), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (60), 57 states have call predecessors, (60), 56 states have call successors, (60) [2024-11-22 03:19:32,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 5265 transitions. [2024-11-22 03:19:32,244 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 5265 transitions. Word has length 135 [2024-11-22 03:19:32,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:32,245 INFO L471 AbstractCegarLoop]: Abstraction has 2967 states and 5265 transitions. [2024-11-22 03:19:32,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 5265 transitions. [2024-11-22 03:19:32,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:32,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:32,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:19:32,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:19:32,247 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:32,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:32,248 INFO L85 PathProgramCache]: Analyzing trace with hash -794682647, now seen corresponding path program 1 times [2024-11-22 03:19:32,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:32,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454925918] [2024-11-22 03:19:32,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:32,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:32,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:32,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:32,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454925918] [2024-11-22 03:19:32,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454925918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:32,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:32,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:32,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070252385] [2024-11-22 03:19:32,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:32,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:32,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:32,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:32,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:32,385 INFO L87 Difference]: Start difference. First operand 2967 states and 5265 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:32,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:32,889 INFO L93 Difference]: Finished difference Result 4472 states and 7635 transitions. [2024-11-22 03:19:32,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:32,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:32,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:32,902 INFO L225 Difference]: With dead ends: 4472 [2024-11-22 03:19:32,902 INFO L226 Difference]: Without dead ends: 3642 [2024-11-22 03:19:32,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:32,909 INFO L432 NwaCegarLoop]: 4337 mSDtfsCounter, 4812 mSDsluCounter, 13170 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4828 SdHoareTripleChecker+Valid, 17507 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:32,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4828 Valid, 17507 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:32,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3642 states. [2024-11-22 03:19:32,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3642 to 3534. [2024-11-22 03:19:32,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 3404 states have (on average 1.7485311398354877) internal successors, (5952), 3413 states have internal predecessors, (5952), 92 states have call successors, (92), 31 states have call predecessors, (92), 36 states have return successors, (106), 93 states have call predecessors, (106), 90 states have call successors, (106) [2024-11-22 03:19:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 6150 transitions. [2024-11-22 03:19:33,006 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 6150 transitions. Word has length 135 [2024-11-22 03:19:33,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:33,007 INFO L471 AbstractCegarLoop]: Abstraction has 3534 states and 6150 transitions. [2024-11-22 03:19:33,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:33,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 6150 transitions. [2024-11-22 03:19:33,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:33,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:33,009 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] [2024-11-22 03:19:33,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:19:33,009 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:33,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:33,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1207203623, now seen corresponding path program 1 times [2024-11-22 03:19:33,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:33,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137662083] [2024-11-22 03:19:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:33,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:33,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:33,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:33,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137662083] [2024-11-22 03:19:33,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137662083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:33,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:33,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:33,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818910027] [2024-11-22 03:19:33,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:33,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:33,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:33,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:33,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:33,128 INFO L87 Difference]: Start difference. First operand 3534 states and 6150 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:33,850 INFO L93 Difference]: Finished difference Result 6293 states and 10534 transitions. [2024-11-22 03:19:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:33,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:33,870 INFO L225 Difference]: With dead ends: 6293 [2024-11-22 03:19:33,870 INFO L226 Difference]: Without dead ends: 4896 [2024-11-22 03:19:33,875 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 [2024-11-22 03:19:33,876 INFO L432 NwaCegarLoop]: 4549 mSDtfsCounter, 4782 mSDsluCounter, 13675 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4798 SdHoareTripleChecker+Valid, 18224 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:33,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4798 Valid, 18224 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:19:33,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4896 states. [2024-11-22 03:19:33,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4896 to 4761. [2024-11-22 03:19:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 4525 states have (on average 1.7078453038674033) internal successors, (7728), 4548 states have internal predecessors, (7728), 160 states have call successors, (160), 55 states have call predecessors, (160), 74 states have return successors, (222), 165 states have call predecessors, (222), 158 states have call successors, (222) [2024-11-22 03:19:34,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 8110 transitions. [2024-11-22 03:19:34,021 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 8110 transitions. Word has length 135 [2024-11-22 03:19:34,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:34,021 INFO L471 AbstractCegarLoop]: Abstraction has 4761 states and 8110 transitions. [2024-11-22 03:19:34,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:34,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 8110 transitions. [2024-11-22 03:19:34,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:34,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:34,025 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] [2024-11-22 03:19:34,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:19:34,025 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:34,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:34,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1360618711, now seen corresponding path program 1 times [2024-11-22 03:19:34,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:34,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033668935] [2024-11-22 03:19:34,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:34,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:34,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:34,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:34,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033668935] [2024-11-22 03:19:34,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033668935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:34,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:34,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:34,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774597693] [2024-11-22 03:19:34,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:34,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:34,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:34,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:34,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:34,158 INFO L87 Difference]: Start difference. First operand 4761 states and 8110 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:34,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:34,883 INFO L93 Difference]: Finished difference Result 10250 states and 17004 transitions. [2024-11-22 03:19:34,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:34,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:34,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:34,917 INFO L225 Difference]: With dead ends: 10250 [2024-11-22 03:19:34,917 INFO L226 Difference]: Without dead ends: 7626 [2024-11-22 03:19:34,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:34,938 INFO L432 NwaCegarLoop]: 4542 mSDtfsCounter, 4774 mSDsluCounter, 13656 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4790 SdHoareTripleChecker+Valid, 18198 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:34,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4790 Valid, 18198 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:19:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7626 states. [2024-11-22 03:19:35,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7626 to 7449. [2024-11-22 03:19:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7449 states, 6983 states have (on average 1.6740655878562223) internal successors, (11690), 7052 states have internal predecessors, (11690), 296 states have call successors, (296), 103 states have call predecessors, (296), 168 states have return successors, (550), 309 states have call predecessors, (550), 294 states have call successors, (550) [2024-11-22 03:19:35,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7449 states to 7449 states and 12536 transitions. [2024-11-22 03:19:35,210 INFO L78 Accepts]: Start accepts. Automaton has 7449 states and 12536 transitions. Word has length 135 [2024-11-22 03:19:35,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:35,211 INFO L471 AbstractCegarLoop]: Abstraction has 7449 states and 12536 transitions. [2024-11-22 03:19:35,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:35,211 INFO L276 IsEmpty]: Start isEmpty. Operand 7449 states and 12536 transitions. [2024-11-22 03:19:35,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:35,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:35,215 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] [2024-11-22 03:19:35,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:19:35,215 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:35,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:35,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1286985643, now seen corresponding path program 1 times [2024-11-22 03:19:35,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:35,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390390643] [2024-11-22 03:19:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:35,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:35,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:35,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390390643] [2024-11-22 03:19:35,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390390643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:35,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:35,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:35,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710720201] [2024-11-22 03:19:35,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:35,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:35,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:35,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:35,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:35,339 INFO L87 Difference]: Start difference. First operand 7449 states and 12536 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:36,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:36,116 INFO L93 Difference]: Finished difference Result 19082 states and 32032 transitions. [2024-11-22 03:19:36,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:36,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:36,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:36,162 INFO L225 Difference]: With dead ends: 19082 [2024-11-22 03:19:36,163 INFO L226 Difference]: Without dead ends: 13770 [2024-11-22 03:19:36,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:36,180 INFO L432 NwaCegarLoop]: 4539 mSDtfsCounter, 4769 mSDsluCounter, 13647 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4785 SdHoareTripleChecker+Valid, 18186 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:36,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4785 Valid, 18186 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:19:36,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13770 states. [2024-11-22 03:19:36,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13770 to 13500. [2024-11-22 03:19:36,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13500 states, 12520 states have (on average 1.6608626198083067) internal successors, (20794), 12735 states have internal predecessors, (20794), 568 states have call successors, (568), 199 states have call predecessors, (568), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-11-22 03:19:36,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13500 states to 13500 states and 22952 transitions. [2024-11-22 03:19:36,527 INFO L78 Accepts]: Start accepts. Automaton has 13500 states and 22952 transitions. Word has length 135 [2024-11-22 03:19:36,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:36,528 INFO L471 AbstractCegarLoop]: Abstraction has 13500 states and 22952 transitions. [2024-11-22 03:19:36,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:36,529 INFO L276 IsEmpty]: Start isEmpty. Operand 13500 states and 22952 transitions. [2024-11-22 03:19:36,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:36,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:36,535 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] [2024-11-22 03:19:36,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:19:36,535 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:36,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:36,535 INFO L85 PathProgramCache]: Analyzing trace with hash -844365079, now seen corresponding path program 1 times [2024-11-22 03:19:36,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:36,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209575532] [2024-11-22 03:19:36,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:36,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:36,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:36,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:36,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209575532] [2024-11-22 03:19:36,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209575532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:36,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:36,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:19:36,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869705395] [2024-11-22 03:19:36,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:36,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:19:36,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:36,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:19:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:19:36,628 INFO L87 Difference]: Start difference. First operand 13500 states and 22952 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:37,096 INFO L93 Difference]: Finished difference Result 27803 states and 48157 transitions. [2024-11-22 03:19:37,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:19:37,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:37,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:37,156 INFO L225 Difference]: With dead ends: 27803 [2024-11-22 03:19:37,156 INFO L226 Difference]: Without dead ends: 16440 [2024-11-22 03:19:37,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:37,200 INFO L432 NwaCegarLoop]: 4288 mSDtfsCounter, 4550 mSDsluCounter, 8457 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4566 SdHoareTripleChecker+Valid, 12745 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:37,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4566 Valid, 12745 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 03:19:37,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16440 states. [2024-11-22 03:19:37,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16440 to 13500. [2024-11-22 03:19:37,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13500 states, 12520 states have (on average 1.658226837060703) internal successors, (20761), 12735 states have internal predecessors, (20761), 568 states have call successors, (568), 199 states have call predecessors, (568), 410 states have return successors, (1590), 597 states have call predecessors, (1590), 566 states have call successors, (1590) [2024-11-22 03:19:37,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13500 states to 13500 states and 22919 transitions. [2024-11-22 03:19:37,745 INFO L78 Accepts]: Start accepts. Automaton has 13500 states and 22919 transitions. Word has length 135 [2024-11-22 03:19:37,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:37,746 INFO L471 AbstractCegarLoop]: Abstraction has 13500 states and 22919 transitions. [2024-11-22 03:19:37,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:37,746 INFO L276 IsEmpty]: Start isEmpty. Operand 13500 states and 22919 transitions. [2024-11-22 03:19:37,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:37,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:37,752 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] [2024-11-22 03:19:37,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:19:37,752 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:37,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:37,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1882949653, now seen corresponding path program 1 times [2024-11-22 03:19:37,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:37,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198242457] [2024-11-22 03:19:37,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:37,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:37,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:37,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:37,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198242457] [2024-11-22 03:19:37,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198242457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:37,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:37,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:37,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192054679] [2024-11-22 03:19:37,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:37,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:37,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:37,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:37,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:37,859 INFO L87 Difference]: Start difference. First operand 13500 states and 22919 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:38,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:38,852 INFO L93 Difference]: Finished difference Result 38993 states and 67731 transitions. [2024-11-22 03:19:38,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:38,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:38,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:38,938 INFO L225 Difference]: With dead ends: 38993 [2024-11-22 03:19:38,938 INFO L226 Difference]: Without dead ends: 27630 [2024-11-22 03:19:38,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:38,972 INFO L432 NwaCegarLoop]: 4531 mSDtfsCounter, 4756 mSDsluCounter, 13624 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 18155 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:38,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4772 Valid, 18155 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:19:38,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27630 states. [2024-11-22 03:19:39,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27630 to 27222. [2024-11-22 03:19:39,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27222 states, 25052 states have (on average 1.6635398371387513) internal successors, (41675), 25721 states have internal predecessors, (41675), 1112 states have call successors, (1112), 391 states have call predecessors, (1112), 1056 states have return successors, (5206), 1173 states have call predecessors, (5206), 1110 states have call successors, (5206) [2024-11-22 03:19:40,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27222 states to 27222 states and 47993 transitions. [2024-11-22 03:19:40,030 INFO L78 Accepts]: Start accepts. Automaton has 27222 states and 47993 transitions. Word has length 135 [2024-11-22 03:19:40,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:40,030 INFO L471 AbstractCegarLoop]: Abstraction has 27222 states and 47993 transitions. [2024-11-22 03:19:40,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:40,031 INFO L276 IsEmpty]: Start isEmpty. Operand 27222 states and 47993 transitions. [2024-11-22 03:19:40,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:40,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:40,042 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] [2024-11-22 03:19:40,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:19:40,042 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:40,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:40,046 INFO L85 PathProgramCache]: Analyzing trace with hash 438852265, now seen corresponding path program 1 times [2024-11-22 03:19:40,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:40,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745693164] [2024-11-22 03:19:40,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:40,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:40,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:40,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:40,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745693164] [2024-11-22 03:19:40,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745693164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:40,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:40,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:40,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921526678] [2024-11-22 03:19:40,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:40,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:40,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:40,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:40,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:40,172 INFO L87 Difference]: Start difference. First operand 27222 states and 47993 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:42,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:42,180 INFO L93 Difference]: Finished difference Result 88965 states and 163364 transitions. [2024-11-22 03:19:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:42,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:42,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:42,455 INFO L225 Difference]: With dead ends: 88965 [2024-11-22 03:19:42,456 INFO L226 Difference]: Without dead ends: 63880 [2024-11-22 03:19:42,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:42,542 INFO L432 NwaCegarLoop]: 4526 mSDtfsCounter, 5005 mSDsluCounter, 13604 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 18130 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:42,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 18130 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:19:42,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63880 states. [2024-11-22 03:19:44,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63880 to 59091. [2024-11-22 03:19:44,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59091 states, 54119 states have (on average 1.6836785602099078) internal successors, (91119), 56182 states have internal predecessors, (91119), 2136 states have call successors, (2136), 775 states have call predecessors, (2136), 2834 states have return successors, (18518), 2261 states have call predecessors, (18518), 2134 states have call successors, (18518) [2024-11-22 03:19:44,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59091 states to 59091 states and 111773 transitions. [2024-11-22 03:19:44,935 INFO L78 Accepts]: Start accepts. Automaton has 59091 states and 111773 transitions. Word has length 135 [2024-11-22 03:19:44,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:44,936 INFO L471 AbstractCegarLoop]: Abstraction has 59091 states and 111773 transitions. [2024-11-22 03:19:44,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:44,936 INFO L276 IsEmpty]: Start isEmpty. Operand 59091 states and 111773 transitions. [2024-11-22 03:19:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:44,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:44,956 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] [2024-11-22 03:19:44,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:19:44,956 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:44,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:44,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1703008213, now seen corresponding path program 1 times [2024-11-22 03:19:44,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:44,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895587935] [2024-11-22 03:19:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:44,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:45,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:45,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:45,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895587935] [2024-11-22 03:19:45,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895587935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:45,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:45,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:45,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906544544] [2024-11-22 03:19:45,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:45,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:45,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:45,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:45,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:45,427 INFO L87 Difference]: Start difference. First operand 59091 states and 111773 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:49,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:19:49,951 INFO L93 Difference]: Finished difference Result 200354 states and 405126 transitions. [2024-11-22 03:19:49,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:19:49,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-22 03:19:49,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:19:50,980 INFO L225 Difference]: With dead ends: 200354 [2024-11-22 03:19:50,981 INFO L226 Difference]: Without dead ends: 143400 [2024-11-22 03:19:51,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:19:51,161 INFO L432 NwaCegarLoop]: 4337 mSDtfsCounter, 4854 mSDsluCounter, 13136 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4869 SdHoareTripleChecker+Valid, 17473 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:19:51,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4869 Valid, 17473 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:19:51,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143400 states. [2024-11-22 03:19:58,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143400 to 133750. [2024-11-22 03:19:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133750 states, 121780 states have (on average 1.7073657415010675) internal successors, (207923), 128089 states have internal predecessors, (207923), 4120 states have call successors, (4120), 1543 states have call predecessors, (4120), 7848 states have return successors, (69654), 4373 states have call predecessors, (69654), 4118 states have call successors, (69654) [2024-11-22 03:19:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133750 states to 133750 states and 281697 transitions. [2024-11-22 03:19:59,432 INFO L78 Accepts]: Start accepts. Automaton has 133750 states and 281697 transitions. Word has length 135 [2024-11-22 03:19:59,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:19:59,433 INFO L471 AbstractCegarLoop]: Abstraction has 133750 states and 281697 transitions. [2024-11-22 03:19:59,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 03:19:59,433 INFO L276 IsEmpty]: Start isEmpty. Operand 133750 states and 281697 transitions. [2024-11-22 03:19:59,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 03:19:59,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:19:59,475 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] [2024-11-22 03:19:59,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:19:59,476 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:19:59,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:19:59,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1968677481, now seen corresponding path program 1 times [2024-11-22 03:19:59,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:19:59,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26025238] [2024-11-22 03:19:59,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:19:59,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:19:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:19:59,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:19:59,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:19:59,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26025238] [2024-11-22 03:19:59,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26025238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:19:59,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:19:59,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:19:59,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950682019] [2024-11-22 03:19:59,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:19:59,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:19:59,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:19:59,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:19:59,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:19:59,595 INFO L87 Difference]: Start difference. First operand 133750 states and 281697 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)