./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.09.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_label46+token_ring.09.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 4193af75abf6aff12bf0c3b1d52895798f02d5d81afc60ee7b84e09fa25d7f81 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:26:19,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:26:19,688 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:26:19,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:26:19,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:26:19,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:26:19,716 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:26:19,717 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:26:19,717 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:26:19,718 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:26:19,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:26:19,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:26:19,719 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:26:19,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:26:19,719 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:26:19,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:26:19,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:26:19,720 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:26:19,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:26:19,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:26:19,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:26:19,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:26:19,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:26:19,721 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:26:19,721 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:26:19,721 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:26:19,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:26:19,722 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:26:19,722 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:26:19,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:26:19,722 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:26:19,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:26:19,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:26:19,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:26:19,723 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:26:19,723 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:26:19,723 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:26:19,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:26:19,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:26:19,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:26:19,723 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:26:19,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:26:19,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4193af75abf6aff12bf0c3b1d52895798f02d5d81afc60ee7b84e09fa25d7f81 [2024-11-22 03:26:19,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:26:19,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:26:19,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:26:19,928 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:26:19,928 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:26:19,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.09.cil-2.c [2024-11-22 03:26:21,188 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:26:21,635 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:26:21,636 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.09.cil-2.c [2024-11-22 03:26:21,684 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7443e99b6/148b2bc6725d4a9ba74c462dab161986/FLAG526fc323f [2024-11-22 03:26:21,697 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7443e99b6/148b2bc6725d4a9ba74c462dab161986 [2024-11-22 03:26:21,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:26:21,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:26:21,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:26:21,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:26:21,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:26:21,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:26:21" (1/1) ... [2024-11-22 03:26:21,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dac74b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:21, skipping insertion in model container [2024-11-22 03:26:21,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:26:21" (1/1) ... [2024-11-22 03:26:21,836 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:26:23,289 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.09.cil-2.c[382357,382370] [2024-11-22 03:26:23,313 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.09.cil-2.c[383339,383352] [2024-11-22 03:26:23,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:26:23,551 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:26:24,211 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.09.cil-2.c[382357,382370] [2024-11-22 03:26:24,216 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.09.cil-2.c[383339,383352] [2024-11-22 03:26:24,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:26:24,289 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:26:24,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24 WrapperNode [2024-11-22 03:26:24,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:26:24,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:26:24,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:26:24,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:26:24,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:24,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:24,661 INFO L138 Inliner]: procedures = 62, calls = 69, calls flagged for inlining = 39, calls inlined = 39, statements flattened = 13059 [2024-11-22 03:26:24,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:26:24,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:26:24,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:26:24,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:26:24,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:24,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:24,759 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:24,826 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 03:26:24,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:24,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:24,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:24,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:25,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:25,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:25,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:26:25,131 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:26:25,131 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:26:25,131 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:26:25,132 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (1/1) ... [2024-11-22 03:26:25,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:26:25,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:26:25,159 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 03:26:25,161 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 03:26:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:26:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 03:26:25,196 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 03:26:25,196 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 03:26:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 03:26:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 03:26:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 03:26:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-22 03:26:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-22 03:26:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 03:26:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 03:26:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 03:26:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 03:26:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 03:26:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 03:26:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:26:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:26:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:26:25,293 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:26:25,295 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:26:31,493 INFO L? ?]: Removed 1741 outVars from TransFormulas that were not future-live. [2024-11-22 03:26:31,493 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:26:31,540 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:26:31,540 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-22 03:26:31,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:26:31 BoogieIcfgContainer [2024-11-22 03:26:31,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:26:31,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:26:31,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:26:31,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:26:31,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:26:21" (1/3) ... [2024-11-22 03:26:31,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6edb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:26:31, skipping insertion in model container [2024-11-22 03:26:31,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:24" (2/3) ... [2024-11-22 03:26:31,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6edb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:26:31, skipping insertion in model container [2024-11-22 03:26:31,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:26:31" (3/3) ... [2024-11-22 03:26:31,550 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.09.cil-2.c [2024-11-22 03:26:31,564 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:26:31,565 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:26:31,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:26:31,686 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;@58b0f56b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:26:31,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:26:31,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 2508 states, 2473 states have (on average 1.8439142741609382) internal successors, (4560), 2478 states have internal predecessors, (4560), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-22 03:26:31,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:31,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:31,716 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:31,716 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:31,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:31,721 INFO L85 PathProgramCache]: Analyzing trace with hash 273379068, now seen corresponding path program 1 times [2024-11-22 03:26:31,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:31,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571933705] [2024-11-22 03:26:31,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:31,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:32,067 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 03:26:32,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:32,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571933705] [2024-11-22 03:26:32,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571933705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:32,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:32,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:26:32,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326797721] [2024-11-22 03:26:32,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:32,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:26:32,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:32,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:26:32,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:26:32,105 INFO L87 Difference]: Start difference. First operand has 2508 states, 2473 states have (on average 1.8439142741609382) internal successors, (4560), 2478 states have internal predecessors, (4560), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 03:26:32,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:32,270 INFO L93 Difference]: Finished difference Result 5007 states and 9205 transitions. [2024-11-22 03:26:32,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:26:32,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:32,295 INFO L225 Difference]: With dead ends: 5007 [2024-11-22 03:26:32,296 INFO L226 Difference]: Without dead ends: 2440 [2024-11-22 03:26:32,307 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 03:26:32,311 INFO L432 NwaCegarLoop]: 4519 mSDtfsCounter, 490 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 8541 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 03:26:32,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 8541 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:26:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2024-11-22 03:26:32,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2440. [2024-11-22 03:26:32,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 2407 states have (on average 1.8292480265891151) internal successors, (4403), 2410 states have internal predecessors, (4403), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 03:26:32,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 4451 transitions. [2024-11-22 03:26:32,450 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 4451 transitions. Word has length 146 [2024-11-22 03:26:32,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:32,451 INFO L471 AbstractCegarLoop]: Abstraction has 2440 states and 4451 transitions. [2024-11-22 03:26:32,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 03:26:32,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 4451 transitions. [2024-11-22 03:26:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:32,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:32,457 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:32,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:26:32,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:32,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:32,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1125574534, now seen corresponding path program 1 times [2024-11-22 03:26:32,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:32,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256592928] [2024-11-22 03:26:32,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:32,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:32,695 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 03:26:32,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:32,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256592928] [2024-11-22 03:26:32,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256592928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:32,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:32,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:26:32,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135887650] [2024-11-22 03:26:32,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:32,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:26:32,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:32,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:26:32,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:26:32,702 INFO L87 Difference]: Start difference. First operand 2440 states and 4451 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 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 03:26:33,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:33,301 INFO L93 Difference]: Finished difference Result 3080 states and 5455 transitions. [2024-11-22 03:26:33,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:26:33,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:33,316 INFO L225 Difference]: With dead ends: 3080 [2024-11-22 03:26:33,316 INFO L226 Difference]: Without dead ends: 2778 [2024-11-22 03:26:33,319 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 03:26:33,319 INFO L432 NwaCegarLoop]: 4383 mSDtfsCounter, 4877 mSDsluCounter, 8979 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4894 SdHoareTripleChecker+Valid, 13362 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:26:33,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4894 Valid, 13362 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:26:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2024-11-22 03:26:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2753. [2024-11-22 03:26:33,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2753 states, 2695 states have (on average 1.8018552875695732) internal successors, (4856), 2699 states have internal predecessors, (4856), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2024-11-22 03:26:33,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2753 states to 2753 states and 4941 transitions. [2024-11-22 03:26:33,390 INFO L78 Accepts]: Start accepts. Automaton has 2753 states and 4941 transitions. Word has length 146 [2024-11-22 03:26:33,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:33,391 INFO L471 AbstractCegarLoop]: Abstraction has 2753 states and 4941 transitions. [2024-11-22 03:26:33,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 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 03:26:33,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2753 states and 4941 transitions. [2024-11-22 03:26:33,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:33,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:33,396 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:33,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:26:33,396 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:33,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:33,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1367927158, now seen corresponding path program 1 times [2024-11-22 03:26:33,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:33,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784912775] [2024-11-22 03:26:33,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:33,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:33,552 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 03:26:33,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:33,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784912775] [2024-11-22 03:26:33,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784912775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:33,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:33,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:26:33,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777898857] [2024-11-22 03:26:33,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:33,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:26:33,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:33,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:26:33,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:33,556 INFO L87 Difference]: Start difference. First operand 2753 states and 4941 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:34,278 INFO L93 Difference]: Finished difference Result 3765 states and 6544 transitions. [2024-11-22 03:26:34,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:26:34,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:34,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:34,290 INFO L225 Difference]: With dead ends: 3765 [2024-11-22 03:26:34,290 INFO L226 Difference]: Without dead ends: 3150 [2024-11-22 03:26:34,293 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 03:26:34,294 INFO L432 NwaCegarLoop]: 4613 mSDtfsCounter, 4880 mSDsluCounter, 13877 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4897 SdHoareTripleChecker+Valid, 18490 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:26:34,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4897 Valid, 18490 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:26:34,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2024-11-22 03:26:34,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3045. [2024-11-22 03:26:34,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3045 states, 2962 states have (on average 1.7781904118838623) internal successors, (5267), 2967 states have internal predecessors, (5267), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (63), 60 states have call predecessors, (63), 59 states have call successors, (63) [2024-11-22 03:26:34,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 5391 transitions. [2024-11-22 03:26:34,368 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 5391 transitions. Word has length 146 [2024-11-22 03:26:34,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:34,368 INFO L471 AbstractCegarLoop]: Abstraction has 3045 states and 5391 transitions. [2024-11-22 03:26:34,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:34,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 5391 transitions. [2024-11-22 03:26:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:34,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:34,370 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:34,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:26:34,371 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:34,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash 661330552, now seen corresponding path program 1 times [2024-11-22 03:26:34,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:34,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358915141] [2024-11-22 03:26:34,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:34,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:34,493 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 03:26:34,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:34,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358915141] [2024-11-22 03:26:34,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358915141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:34,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:34,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:26:34,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112803590] [2024-11-22 03:26:34,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:34,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:26:34,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:34,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:26:34,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:34,496 INFO L87 Difference]: Start difference. First operand 3045 states and 5391 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:35,109 INFO L93 Difference]: Finished difference Result 4685 states and 7981 transitions. [2024-11-22 03:26:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:26:35,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:35,124 INFO L225 Difference]: With dead ends: 4685 [2024-11-22 03:26:35,124 INFO L226 Difference]: Without dead ends: 3778 [2024-11-22 03:26:35,128 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 03:26:35,129 INFO L432 NwaCegarLoop]: 4605 mSDtfsCounter, 4872 mSDsluCounter, 13855 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4889 SdHoareTripleChecker+Valid, 18460 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:26:35,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4889 Valid, 18460 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:26:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2024-11-22 03:26:35,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 3663. [2024-11-22 03:26:35,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3663 states, 3528 states have (on average 1.7431972789115646) internal successors, (6150), 3537 states have internal predecessors, (6150), 97 states have call successors, (97), 31 states have call predecessors, (97), 36 states have return successors, (111), 98 states have call predecessors, (111), 95 states have call successors, (111) [2024-11-22 03:26:35,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3663 states to 3663 states and 6358 transitions. [2024-11-22 03:26:35,231 INFO L78 Accepts]: Start accepts. Automaton has 3663 states and 6358 transitions. Word has length 146 [2024-11-22 03:26:35,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:35,231 INFO L471 AbstractCegarLoop]: Abstraction has 3663 states and 6358 transitions. [2024-11-22 03:26:35,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:35,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3663 states and 6358 transitions. [2024-11-22 03:26:35,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:35,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:35,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:35,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:26:35,235 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:35,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:35,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1523164154, now seen corresponding path program 1 times [2024-11-22 03:26:35,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:35,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622507736] [2024-11-22 03:26:35,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:35,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:35,348 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 03:26:35,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:35,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622507736] [2024-11-22 03:26:35,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622507736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:35,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:35,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:26:35,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808529777] [2024-11-22 03:26:35,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:35,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:26:35,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:35,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:26:35,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:35,350 INFO L87 Difference]: Start difference. First operand 3663 states and 6358 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:36,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:36,009 INFO L93 Difference]: Finished difference Result 6667 states and 11142 transitions. [2024-11-22 03:26:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:26:36,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:36,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:36,029 INFO L225 Difference]: With dead ends: 6667 [2024-11-22 03:26:36,030 INFO L226 Difference]: Without dead ends: 5142 [2024-11-22 03:26:36,034 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 03:26:36,036 INFO L432 NwaCegarLoop]: 4602 mSDtfsCounter, 4867 mSDsluCounter, 13846 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4884 SdHoareTripleChecker+Valid, 18448 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:26:36,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4884 Valid, 18448 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:26:36,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2024-11-22 03:26:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 4998. [2024-11-22 03:26:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4998 states, 4753 states have (on average 1.7029244687565748) internal successors, (8094), 4776 states have internal predecessors, (8094), 169 states have call successors, (169), 55 states have call predecessors, (169), 74 states have return successors, (231), 174 states have call predecessors, (231), 167 states have call successors, (231) [2024-11-22 03:26:36,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4998 states to 4998 states and 8494 transitions. [2024-11-22 03:26:36,272 INFO L78 Accepts]: Start accepts. Automaton has 4998 states and 8494 transitions. Word has length 146 [2024-11-22 03:26:36,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:36,273 INFO L471 AbstractCegarLoop]: Abstraction has 4998 states and 8494 transitions. [2024-11-22 03:26:36,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:36,273 INFO L276 IsEmpty]: Start isEmpty. Operand 4998 states and 8494 transitions. [2024-11-22 03:26:36,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:36,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:36,276 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:36,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:26:36,276 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:36,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:36,277 INFO L85 PathProgramCache]: Analyzing trace with hash -527244744, now seen corresponding path program 1 times [2024-11-22 03:26:36,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:36,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120848595] [2024-11-22 03:26:36,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:36,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:36,380 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 03:26:36,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:36,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120848595] [2024-11-22 03:26:36,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120848595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:36,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:36,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:26:36,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394741570] [2024-11-22 03:26:36,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:36,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:26:36,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:36,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:26:36,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:36,382 INFO L87 Difference]: Start difference. First operand 4998 states and 8494 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:37,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:37,042 INFO L93 Difference]: Finished difference Result 11008 states and 18260 transitions. [2024-11-22 03:26:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:26:37,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:37,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:37,080 INFO L225 Difference]: With dead ends: 11008 [2024-11-22 03:26:37,080 INFO L226 Difference]: Without dead ends: 8148 [2024-11-22 03:26:37,092 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 03:26:37,092 INFO L432 NwaCegarLoop]: 4599 mSDtfsCounter, 4862 mSDsluCounter, 13837 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4879 SdHoareTripleChecker+Valid, 18436 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:26:37,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4879 Valid, 18436 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:26:37,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2024-11-22 03:26:37,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 7947. [2024-11-22 03:26:37,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7947 states, 7464 states have (on average 1.672293676312969) internal successors, (12482), 7533 states have internal predecessors, (12482), 313 states have call successors, (313), 103 states have call predecessors, (313), 168 states have return successors, (567), 326 states have call predecessors, (567), 311 states have call successors, (567) [2024-11-22 03:26:37,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7947 states to 7947 states and 13362 transitions. [2024-11-22 03:26:37,344 INFO L78 Accepts]: Start accepts. Automaton has 7947 states and 13362 transitions. Word has length 146 [2024-11-22 03:26:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:37,345 INFO L471 AbstractCegarLoop]: Abstraction has 7947 states and 13362 transitions. [2024-11-22 03:26:37,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:37,346 INFO L276 IsEmpty]: Start isEmpty. Operand 7947 states and 13362 transitions. [2024-11-22 03:26:37,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:37,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:37,351 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:37,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:26:37,351 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:37,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:37,352 INFO L85 PathProgramCache]: Analyzing trace with hash -39197638, now seen corresponding path program 1 times [2024-11-22 03:26:37,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:37,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376898024] [2024-11-22 03:26:37,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:37,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:37,478 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 03:26:37,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:37,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376898024] [2024-11-22 03:26:37,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376898024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:37,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:37,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:26:37,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153333774] [2024-11-22 03:26:37,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:37,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:26:37,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:37,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:26:37,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:37,480 INFO L87 Difference]: Start difference. First operand 7947 states and 13362 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:38,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:38,288 INFO L93 Difference]: Finished difference Result 20747 states and 34862 transitions. [2024-11-22 03:26:38,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:26:38,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:38,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:38,352 INFO L225 Difference]: With dead ends: 20747 [2024-11-22 03:26:38,353 INFO L226 Difference]: Without dead ends: 14938 [2024-11-22 03:26:38,373 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 03:26:38,375 INFO L432 NwaCegarLoop]: 4366 mSDtfsCounter, 4890 mSDsluCounter, 13277 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4907 SdHoareTripleChecker+Valid, 17643 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:26:38,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4907 Valid, 17643 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:26:38,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14938 states. [2024-11-22 03:26:38,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14938 to 14628. [2024-11-22 03:26:38,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14628 states, 13615 states have (on average 1.6639001101726036) internal successors, (22654), 13830 states have internal predecessors, (22654), 601 states have call successors, (601), 199 states have call predecessors, (601), 410 states have return successors, (1623), 630 states have call predecessors, (1623), 599 states have call successors, (1623) [2024-11-22 03:26:38,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14628 states to 14628 states and 24878 transitions. [2024-11-22 03:26:38,758 INFO L78 Accepts]: Start accepts. Automaton has 14628 states and 24878 transitions. Word has length 146 [2024-11-22 03:26:38,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:38,759 INFO L471 AbstractCegarLoop]: Abstraction has 14628 states and 24878 transitions. [2024-11-22 03:26:38,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:38,759 INFO L276 IsEmpty]: Start isEmpty. Operand 14628 states and 24878 transitions. [2024-11-22 03:26:38,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:38,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:38,765 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:38,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:26:38,766 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:38,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:38,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1131832840, now seen corresponding path program 1 times [2024-11-22 03:26:38,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:38,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842014837] [2024-11-22 03:26:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:38,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:38,856 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 03:26:38,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:38,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842014837] [2024-11-22 03:26:38,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842014837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:38,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:38,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:26:38,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853092245] [2024-11-22 03:26:38,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:38,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:26:38,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:38,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:26:38,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:26:38,858 INFO L87 Difference]: Start difference. First operand 14628 states and 24878 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:39,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:39,622 INFO L93 Difference]: Finished difference Result 30548 states and 52987 transitions. [2024-11-22 03:26:39,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 03:26:39,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:39,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:39,687 INFO L225 Difference]: With dead ends: 30548 [2024-11-22 03:26:39,688 INFO L226 Difference]: Without dead ends: 18058 [2024-11-22 03:26:39,732 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 03:26:39,733 INFO L432 NwaCegarLoop]: 4321 mSDtfsCounter, 4610 mSDsluCounter, 8513 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4627 SdHoareTripleChecker+Valid, 12834 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 03:26:39,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4627 Valid, 12834 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 03:26:39,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18058 states. [2024-11-22 03:26:40,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18058 to 14628. [2024-11-22 03:26:40,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14628 states, 13615 states have (on average 1.6614763128901946) internal successors, (22621), 13830 states have internal predecessors, (22621), 601 states have call successors, (601), 199 states have call predecessors, (601), 410 states have return successors, (1623), 630 states have call predecessors, (1623), 599 states have call successors, (1623) [2024-11-22 03:26:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14628 states to 14628 states and 24845 transitions. [2024-11-22 03:26:40,401 INFO L78 Accepts]: Start accepts. Automaton has 14628 states and 24845 transitions. Word has length 146 [2024-11-22 03:26:40,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:40,402 INFO L471 AbstractCegarLoop]: Abstraction has 14628 states and 24845 transitions. [2024-11-22 03:26:40,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:40,403 INFO L276 IsEmpty]: Start isEmpty. Operand 14628 states and 24845 transitions. [2024-11-22 03:26:40,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:40,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:40,411 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:40,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:26:40,411 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:40,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:40,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1880962170, now seen corresponding path program 1 times [2024-11-22 03:26:40,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:40,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185513551] [2024-11-22 03:26:40,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:40,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:40,549 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 03:26:40,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:40,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185513551] [2024-11-22 03:26:40,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185513551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:40,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:40,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:26:40,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66837949] [2024-11-22 03:26:40,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:40,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:26:40,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:40,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:26:40,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:40,554 INFO L87 Difference]: Start difference. First operand 14628 states and 24845 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:41,956 INFO L93 Difference]: Finished difference Result 42904 states and 74573 transitions. [2024-11-22 03:26:41,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:26:41,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:41,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:42,057 INFO L225 Difference]: With dead ends: 42904 [2024-11-22 03:26:42,057 INFO L226 Difference]: Without dead ends: 30414 [2024-11-22 03:26:42,085 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 03:26:42,085 INFO L432 NwaCegarLoop]: 4588 mSDtfsCounter, 4844 mSDsluCounter, 13805 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4861 SdHoareTripleChecker+Valid, 18393 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:26:42,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4861 Valid, 18393 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:26:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30414 states. [2024-11-22 03:26:43,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30414 to 29934. [2024-11-22 03:26:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29934 states, 27699 states have (on average 1.6722264341672985) internal successors, (46319), 28368 states have internal predecessors, (46319), 1177 states have call successors, (1177), 391 states have call predecessors, (1177), 1056 states have return successors, (5271), 1238 states have call predecessors, (5271), 1175 states have call successors, (5271) [2024-11-22 03:26:43,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29934 states to 29934 states and 52767 transitions. [2024-11-22 03:26:43,309 INFO L78 Accepts]: Start accepts. Automaton has 29934 states and 52767 transitions. Word has length 146 [2024-11-22 03:26:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:43,310 INFO L471 AbstractCegarLoop]: Abstraction has 29934 states and 52767 transitions. [2024-11-22 03:26:43,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand 29934 states and 52767 transitions. [2024-11-22 03:26:43,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:43,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:43,324 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:43,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:26:43,324 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:43,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:43,325 INFO L85 PathProgramCache]: Analyzing trace with hash 38486456, now seen corresponding path program 1 times [2024-11-22 03:26:43,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:43,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248268758] [2024-11-22 03:26:43,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:43,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:43,461 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 03:26:43,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:43,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248268758] [2024-11-22 03:26:43,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248268758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:43,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:43,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:26:43,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121000994] [2024-11-22 03:26:43,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:43,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:26:43,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:43,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:26:43,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:43,463 INFO L87 Difference]: Start difference. First operand 29934 states and 52767 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:45,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:45,734 INFO L93 Difference]: Finished difference Result 94760 states and 174869 transitions. [2024-11-22 03:26:45,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:26:45,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:45,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:46,081 INFO L225 Difference]: With dead ends: 94760 [2024-11-22 03:26:46,082 INFO L226 Difference]: Without dead ends: 66964 [2024-11-22 03:26:46,190 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 03:26:46,191 INFO L432 NwaCegarLoop]: 4585 mSDtfsCounter, 4839 mSDsluCounter, 13796 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4856 SdHoareTripleChecker+Valid, 18381 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 03:26:46,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4856 Valid, 18381 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 03:26:46,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66964 states. [2024-11-22 03:26:48,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66964 to 66135. [2024-11-22 03:26:48,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66135 states, 60970 states have (on average 1.6959652288010496) internal successors, (103403), 63033 states have internal predecessors, (103403), 2329 states have call successors, (2329), 775 states have call predecessors, (2329), 2834 states have return successors, (18711), 2454 states have call predecessors, (18711), 2327 states have call successors, (18711) [2024-11-22 03:26:48,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66135 states to 66135 states and 124443 transitions. [2024-11-22 03:26:48,821 INFO L78 Accepts]: Start accepts. Automaton has 66135 states and 124443 transitions. Word has length 146 [2024-11-22 03:26:48,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:26:48,821 INFO L471 AbstractCegarLoop]: Abstraction has 66135 states and 124443 transitions. [2024-11-22 03:26:48,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 66135 states and 124443 transitions. [2024-11-22 03:26:48,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:26:48,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:26:48,846 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:26:48,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:26:48,846 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:26:48,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:26:48,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1683516230, now seen corresponding path program 1 times [2024-11-22 03:26:48,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:26:48,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583695701] [2024-11-22 03:26:48,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:26:48,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:26:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:26:48,975 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 03:26:48,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:26:48,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583695701] [2024-11-22 03:26:48,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583695701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:26:48,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:26:48,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:26:48,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828183362] [2024-11-22 03:26:48,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:26:48,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:26:48,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:26:48,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:26:48,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:26:48,978 INFO L87 Difference]: Start difference. First operand 66135 states and 124443 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:26:54,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:26:54,173 INFO L93 Difference]: Finished difference Result 224671 states and 449196 transitions. [2024-11-22 03:26:54,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:26:54,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 146 [2024-11-22 03:26:54,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:26:55,198 INFO L225 Difference]: With dead ends: 224671 [2024-11-22 03:26:55,199 INFO L226 Difference]: Without dead ends: 160674 [2024-11-22 03:26:55,403 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 03:26:55,404 INFO L432 NwaCegarLoop]: 4575 mSDtfsCounter, 4913 mSDsluCounter, 13763 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4929 SdHoareTripleChecker+Valid, 18338 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:26:55,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4929 Valid, 18338 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:26:55,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160674 states. [2024-11-22 03:27:03,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160674 to 149995. [2024-11-22 03:27:03,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149995 states, 137640 states have (on average 1.7205536181342633) internal successors, (236817), 143949 states have internal predecessors, (236817), 4505 states have call successors, (4505), 1543 states have call predecessors, (4505), 7848 states have return successors, (70039), 4758 states have call predecessors, (70039), 4503 states have call successors, (70039) [2024-11-22 03:27:04,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149995 states to 149995 states and 311361 transitions. [2024-11-22 03:27:04,704 INFO L78 Accepts]: Start accepts. Automaton has 149995 states and 311361 transitions. Word has length 146 [2024-11-22 03:27:04,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:27:04,704 INFO L471 AbstractCegarLoop]: Abstraction has 149995 states and 311361 transitions. [2024-11-22 03:27:04,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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 03:27:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 149995 states and 311361 transitions. [2024-11-22 03:27:04,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 03:27:04,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:27:04,751 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:27:04,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:27:04,751 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:27:04,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:27:04,753 INFO L85 PathProgramCache]: Analyzing trace with hash 245415996, now seen corresponding path program 1 times [2024-11-22 03:27:04,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:27:04,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020266767] [2024-11-22 03:27:04,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:27:04,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:27:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:27:04,883 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 03:27:04,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:27:04,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020266767] [2024-11-22 03:27:04,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020266767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:27:04,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:27:04,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:27:04,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100993154] [2024-11-22 03:27:04,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:27:04,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:27:04,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:27:04,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:27:04,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:27:04,886 INFO L87 Difference]: Start difference. First operand 149995 states and 311361 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 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)