./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.05.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/token_ring.05.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 16e147b68a860b93a665f8bd36a316225675cf186d50a72fc3242bc6ec552f78 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:08:18,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:08:18,267 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:08:18,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:08:18,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:08:18,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:08:18,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:08:18,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:08:18,298 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:08:18,298 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:08:18,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:08:18,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:08:18,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:08:18,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:08:18,299 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:08:18,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:08:18,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:08:18,300 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:08:18,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:08:18,301 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:08:18,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:08:18,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:08:18,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:08:18,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:08:18,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:08:18,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:08:18,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:08:18,305 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:08:18,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:08:18,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:08:18,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:08:18,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:08:18,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:08:18,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:08:18,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:08:18,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:08:18,307 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:08:18,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:08:18,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:08:18,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:08:18,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:08:18,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:08:18,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16e147b68a860b93a665f8bd36a316225675cf186d50a72fc3242bc6ec552f78 [2024-11-11 21:08:18,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:08:18,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:08:18,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:08:18,537 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:08:18,537 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:08:18,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.05.cil-2.c [2024-11-11 21:08:19,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:08:19,929 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:08:19,931 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.05.cil-2.c [2024-11-11 21:08:19,947 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb50dd49/b4c0ae5fe19841ef95a8887e00013ee3/FLAG887e5effb [2024-11-11 21:08:20,325 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb50dd49/b4c0ae5fe19841ef95a8887e00013ee3 [2024-11-11 21:08:20,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:08:20,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:08:20,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:08:20,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:08:20,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:08:20,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b5af85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20, skipping insertion in model container [2024-11-11 21:08:20,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,370 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:08:20,502 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/systemc/token_ring.05.cil-2.c[671,684] [2024-11-11 21:08:20,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:08:20,572 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:08:20,581 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/systemc/token_ring.05.cil-2.c[671,684] [2024-11-11 21:08:20,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:08:20,625 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:08:20,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20 WrapperNode [2024-11-11 21:08:20,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:08:20,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:08:20,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:08:20,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:08:20,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,672 INFO L138 Inliner]: procedures = 38, calls = 47, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 465 [2024-11-11 21:08:20,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:08:20,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:08:20,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:08:20,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:08:20,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,718 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]. [2024-11-11 21:08:20,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:08:20,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:08:20,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:08:20,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:08:20,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (1/1) ... [2024-11-11 21:08:20,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:08:20,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:08:20,779 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) [2024-11-11 21:08:20,780 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 [2024-11-11 21:08:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:08:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-11 21:08:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-11 21:08:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-11 21:08:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-11 21:08:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-11 21:08:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-11 21:08:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 21:08:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 21:08:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-11 21:08:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-11 21:08:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-11 21:08:20,816 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-11 21:08:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:08:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-11 21:08:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-11 21:08:20,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:08:20,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:08:20,885 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:08:20,887 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:08:21,299 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-11 21:08:21,299 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:08:21,314 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:08:21,315 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-11 21:08:21,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:08:21 BoogieIcfgContainer [2024-11-11 21:08:21,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:08:21,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:08:21,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:08:21,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:08:21,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:08:20" (1/3) ... [2024-11-11 21:08:21,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754576b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:08:21, skipping insertion in model container [2024-11-11 21:08:21,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:08:20" (2/3) ... [2024-11-11 21:08:21,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754576b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:08:21, skipping insertion in model container [2024-11-11 21:08:21,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:08:21" (3/3) ... [2024-11-11 21:08:21,326 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.05.cil-2.c [2024-11-11 21:08:21,338 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:08:21,339 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:08:21,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:08:21,419 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;@52bc96dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:08:21,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:08:21,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 191 states have (on average 1.612565445026178) internal successors, (308), 195 states have internal predecessors, (308), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-11 21:08:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:08:21,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:21,434 INFO L218 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] [2024-11-11 21:08:21,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:21,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:21,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1023077754, now seen corresponding path program 1 times [2024-11-11 21:08:21,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:21,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325617370] [2024-11-11 21:08:21,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:21,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:21,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:21,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:08:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:21,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:08:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:21,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:08:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:21,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:21,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:21,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325617370] [2024-11-11 21:08:21,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325617370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:21,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:21,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:08:21,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595039515] [2024-11-11 21:08:21,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:21,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:08:21,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:21,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:08:21,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:08:21,990 INFO L87 Difference]: Start difference. First operand has 221 states, 191 states have (on average 1.612565445026178) internal successors, (308), 195 states have internal predecessors, (308), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:23,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:23,358 INFO L93 Difference]: Finished difference Result 767 states and 1239 transitions. [2024-11-11 21:08:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 21:08:23,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (6), 4 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 101 [2024-11-11 21:08:23,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:23,374 INFO L225 Difference]: With dead ends: 767 [2024-11-11 21:08:23,374 INFO L226 Difference]: Without dead ends: 551 [2024-11-11 21:08:23,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:08:23,380 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 783 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:23,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 794 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 21:08:23,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-11 21:08:23,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 420. [2024-11-11 21:08:23,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 371 states have (on average 1.5390835579514826) internal successors, (571), 374 states have internal predecessors, (571), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-11 21:08:23,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 642 transitions. [2024-11-11 21:08:23,482 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 642 transitions. Word has length 101 [2024-11-11 21:08:23,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:23,483 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 642 transitions. [2024-11-11 21:08:23,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:23,483 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 642 transitions. [2024-11-11 21:08:23,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:08:23,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:23,489 INFO L218 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] [2024-11-11 21:08:23,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:08:23,489 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:23,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:23,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1588074370, now seen corresponding path program 1 times [2024-11-11 21:08:23,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:23,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356954658] [2024-11-11 21:08:23,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:23,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:23,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:23,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:08:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:23,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:08:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:23,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:08:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:23,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:23,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:23,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356954658] [2024-11-11 21:08:23,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356954658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:23,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:23,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:23,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115264963] [2024-11-11 21:08:23,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:23,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:23,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:23,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:23,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:23,698 INFO L87 Difference]: Start difference. First operand 420 states and 642 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:25,138 INFO L93 Difference]: Finished difference Result 1233 states and 1912 transitions. [2024-11-11 21:08:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:25,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 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 101 [2024-11-11 21:08:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:25,143 INFO L225 Difference]: With dead ends: 1233 [2024-11-11 21:08:25,143 INFO L226 Difference]: Without dead ends: 826 [2024-11-11 21:08:25,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:25,147 INFO L435 NwaCegarLoop]: 334 mSDtfsCounter, 782 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:25,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1450 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 21:08:25,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-11 21:08:25,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 612. [2024-11-11 21:08:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 542 states have (on average 1.5313653136531364) internal successors, (830), 546 states have internal predecessors, (830), 49 states have call successors, (49), 19 states have call predecessors, (49), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-11 21:08:25,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 931 transitions. [2024-11-11 21:08:25,201 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 931 transitions. Word has length 101 [2024-11-11 21:08:25,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:25,202 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 931 transitions. [2024-11-11 21:08:25,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:25,203 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 931 transitions. [2024-11-11 21:08:25,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:08:25,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:25,206 INFO L218 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] [2024-11-11 21:08:25,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:08:25,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:25,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:25,211 INFO L85 PathProgramCache]: Analyzing trace with hash -830410108, now seen corresponding path program 1 times [2024-11-11 21:08:25,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:25,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929522485] [2024-11-11 21:08:25,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:25,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:25,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:25,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:08:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:25,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:08:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:25,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:08:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:25,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:25,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:25,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929522485] [2024-11-11 21:08:25,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929522485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:25,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:25,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:25,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923130660] [2024-11-11 21:08:25,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:25,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:25,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:25,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:25,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:25,372 INFO L87 Difference]: Start difference. First operand 612 states and 931 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:26,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:26,802 INFO L93 Difference]: Finished difference Result 1940 states and 3001 transitions. [2024-11-11 21:08:26,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:26,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 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 101 [2024-11-11 21:08:26,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:26,812 INFO L225 Difference]: With dead ends: 1940 [2024-11-11 21:08:26,813 INFO L226 Difference]: Without dead ends: 1341 [2024-11-11 21:08:26,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:26,815 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 780 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:26,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1448 Invalid, 1814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1761 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 21:08:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2024-11-11 21:08:26,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 997. [2024-11-11 21:08:26,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 885 states have (on average 1.5242937853107346) internal successors, (1349), 891 states have internal predecessors, (1349), 77 states have call successors, (77), 31 states have call predecessors, (77), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-11 21:08:26,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1514 transitions. [2024-11-11 21:08:26,875 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1514 transitions. Word has length 101 [2024-11-11 21:08:26,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:26,876 INFO L471 AbstractCegarLoop]: Abstraction has 997 states and 1514 transitions. [2024-11-11 21:08:26,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:26,877 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1514 transitions. [2024-11-11 21:08:26,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:08:26,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:26,880 INFO L218 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] [2024-11-11 21:08:26,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:08:26,881 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:26,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:26,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1585426242, now seen corresponding path program 1 times [2024-11-11 21:08:26,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:26,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606087895] [2024-11-11 21:08:26,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:26,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:26,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:26,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:08:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:27,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:08:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:27,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:08:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:27,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:27,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:27,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606087895] [2024-11-11 21:08:27,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606087895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:27,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:27,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:27,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223754827] [2024-11-11 21:08:27,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:27,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:27,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:27,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:27,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:27,047 INFO L87 Difference]: Start difference. First operand 997 states and 1514 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:28,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:28,430 INFO L93 Difference]: Finished difference Result 3305 states and 5096 transitions. [2024-11-11 21:08:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:28,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 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 101 [2024-11-11 21:08:28,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:28,440 INFO L225 Difference]: With dead ends: 3305 [2024-11-11 21:08:28,441 INFO L226 Difference]: Without dead ends: 2321 [2024-11-11 21:08:28,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:28,444 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 776 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:28,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1448 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 21:08:28,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2024-11-11 21:08:28,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 1768. [2024-11-11 21:08:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1768 states, 1572 states have (on average 1.5184478371501273) internal successors, (2387), 1582 states have internal predecessors, (2387), 133 states have call successors, (133), 55 states have call predecessors, (133), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-11 21:08:28,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 2686 transitions. [2024-11-11 21:08:28,536 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 2686 transitions. Word has length 101 [2024-11-11 21:08:28,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:28,537 INFO L471 AbstractCegarLoop]: Abstraction has 1768 states and 2686 transitions. [2024-11-11 21:08:28,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:28,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 2686 transitions. [2024-11-11 21:08:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:08:28,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:28,539 INFO L218 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] [2024-11-11 21:08:28,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:08:28,540 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:28,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:28,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1384684860, now seen corresponding path program 1 times [2024-11-11 21:08:28,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:28,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297558730] [2024-11-11 21:08:28,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:28,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:28,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:28,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:08:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:28,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:08:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:28,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:08:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:28,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:28,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:28,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:28,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297558730] [2024-11-11 21:08:28,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297558730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:28,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:28,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:28,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763876407] [2024-11-11 21:08:28,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:28,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:28,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:28,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:28,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:28,691 INFO L87 Difference]: Start difference. First operand 1768 states and 2686 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:30,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:30,062 INFO L93 Difference]: Finished difference Result 6034 states and 9302 transitions. [2024-11-11 21:08:30,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:08:30,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 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 101 [2024-11-11 21:08:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:30,079 INFO L225 Difference]: With dead ends: 6034 [2024-11-11 21:08:30,080 INFO L226 Difference]: Without dead ends: 4279 [2024-11-11 21:08:30,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:08:30,085 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 778 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:30,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1448 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 21:08:30,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4279 states. [2024-11-11 21:08:30,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4279 to 3315. [2024-11-11 21:08:30,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3315 states, 2951 states have (on average 1.5144018976618097) internal successors, (4469), 2969 states have internal predecessors, (4469), 245 states have call successors, (245), 103 states have call predecessors, (245), 118 states have return successors, (340), 258 states have call predecessors, (340), 243 states have call successors, (340) [2024-11-11 21:08:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3315 states to 3315 states and 5054 transitions. [2024-11-11 21:08:30,236 INFO L78 Accepts]: Start accepts. Automaton has 3315 states and 5054 transitions. Word has length 101 [2024-11-11 21:08:30,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:30,237 INFO L471 AbstractCegarLoop]: Abstraction has 3315 states and 5054 transitions. [2024-11-11 21:08:30,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:30,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3315 states and 5054 transitions. [2024-11-11 21:08:30,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:08:30,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:30,240 INFO L218 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] [2024-11-11 21:08:30,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:08:30,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:30,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:30,240 INFO L85 PathProgramCache]: Analyzing trace with hash 182073090, now seen corresponding path program 1 times [2024-11-11 21:08:30,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:30,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396231277] [2024-11-11 21:08:30,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:30,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:30,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:30,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:08:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:30,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:08:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:30,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:08:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:30,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:30,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:30,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396231277] [2024-11-11 21:08:30,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396231277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:30,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:30,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:30,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108846498] [2024-11-11 21:08:30,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:30,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:30,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:30,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:30,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:30,386 INFO L87 Difference]: Start difference. First operand 3315 states and 5054 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:31,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:31,729 INFO L93 Difference]: Finished difference Result 12740 states and 19634 transitions. [2024-11-11 21:08:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:08:31,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 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 101 [2024-11-11 21:08:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:31,767 INFO L225 Difference]: With dead ends: 12740 [2024-11-11 21:08:31,767 INFO L226 Difference]: Without dead ends: 9438 [2024-11-11 21:08:31,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:08:31,777 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 1048 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:31,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 939 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 21:08:31,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2024-11-11 21:08:32,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 6391. [2024-11-11 21:08:32,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6391 states, 5707 states have (on average 1.516208165410899) internal successors, (8653), 5741 states have internal predecessors, (8653), 453 states have call successors, (453), 199 states have call predecessors, (453), 230 states have return successors, (726), 482 states have call predecessors, (726), 451 states have call successors, (726) [2024-11-11 21:08:32,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6391 states to 6391 states and 9832 transitions. [2024-11-11 21:08:32,137 INFO L78 Accepts]: Start accepts. Automaton has 6391 states and 9832 transitions. Word has length 101 [2024-11-11 21:08:32,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:32,137 INFO L471 AbstractCegarLoop]: Abstraction has 6391 states and 9832 transitions. [2024-11-11 21:08:32,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:32,138 INFO L276 IsEmpty]: Start isEmpty. Operand 6391 states and 9832 transitions. [2024-11-11 21:08:32,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:08:32,143 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:32,143 INFO L218 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] [2024-11-11 21:08:32,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:08:32,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:32,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:32,144 INFO L85 PathProgramCache]: Analyzing trace with hash -960429376, now seen corresponding path program 1 times [2024-11-11 21:08:32,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:32,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644702433] [2024-11-11 21:08:32,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:32,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:32,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:32,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:08:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:32,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:08:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:32,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:08:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:32,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:32,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:32,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:32,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644702433] [2024-11-11 21:08:32,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644702433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:32,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:32,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:32,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451121269] [2024-11-11 21:08:32,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:32,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:32,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:32,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:32,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:32,266 INFO L87 Difference]: Start difference. First operand 6391 states and 9832 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:34,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:34,166 INFO L93 Difference]: Finished difference Result 24394 states and 37862 transitions. [2024-11-11 21:08:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:08:34,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 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 101 [2024-11-11 21:08:34,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:34,252 INFO L225 Difference]: With dead ends: 24394 [2024-11-11 21:08:34,253 INFO L226 Difference]: Without dead ends: 18016 [2024-11-11 21:08:34,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:08:34,277 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 815 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:34,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 1434 Invalid, 2054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 21:08:34,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18016 states. [2024-11-11 21:08:34,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18016 to 12204. [2024-11-11 21:08:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12204 states, 10896 states have (on average 1.5101872246696035) internal successors, (16455), 10962 states have internal predecessors, (16455), 853 states have call successors, (853), 391 states have call predecessors, (853), 454 states have return successors, (1644), 914 states have call predecessors, (1644), 851 states have call successors, (1644) [2024-11-11 21:08:34,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12204 states to 12204 states and 18952 transitions. [2024-11-11 21:08:34,888 INFO L78 Accepts]: Start accepts. Automaton has 12204 states and 18952 transitions. Word has length 101 [2024-11-11 21:08:34,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:34,889 INFO L471 AbstractCegarLoop]: Abstraction has 12204 states and 18952 transitions. [2024-11-11 21:08:34,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:34,890 INFO L276 IsEmpty]: Start isEmpty. Operand 12204 states and 18952 transitions. [2024-11-11 21:08:34,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:08:34,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:34,899 INFO L218 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] [2024-11-11 21:08:34,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:08:34,899 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:34,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:34,900 INFO L85 PathProgramCache]: Analyzing trace with hash -720189630, now seen corresponding path program 1 times [2024-11-11 21:08:34,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:34,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516500147] [2024-11-11 21:08:34,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:34,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:34,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:34,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:08:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:35,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:08:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:35,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:08:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:35,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:35,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:35,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:35,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516500147] [2024-11-11 21:08:35,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516500147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:35,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:35,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:35,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154070320] [2024-11-11 21:08:35,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:35,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:35,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:35,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:35,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:35,038 INFO L87 Difference]: Start difference. First operand 12204 states and 18952 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:37,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:37,582 INFO L93 Difference]: Finished difference Result 46149 states and 72260 transitions. [2024-11-11 21:08:37,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:08:37,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 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 101 [2024-11-11 21:08:37,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:37,732 INFO L225 Difference]: With dead ends: 46149 [2024-11-11 21:08:37,733 INFO L226 Difference]: Without dead ends: 33958 [2024-11-11 21:08:37,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:08:37,777 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 907 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:37,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1438 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 21:08:37,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33958 states. [2024-11-11 21:08:39,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33958 to 24117. [2024-11-11 21:08:39,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24117 states, 21593 states have (on average 1.5127587644143936) internal successors, (32665), 21723 states have internal predecessors, (32665), 1621 states have call successors, (1621), 775 states have call predecessors, (1621), 902 states have return successors, (3934), 1746 states have call predecessors, (3934), 1619 states have call successors, (3934) [2024-11-11 21:08:39,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24117 states to 24117 states and 38220 transitions. [2024-11-11 21:08:39,393 INFO L78 Accepts]: Start accepts. Automaton has 24117 states and 38220 transitions. Word has length 101 [2024-11-11 21:08:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:39,394 INFO L471 AbstractCegarLoop]: Abstraction has 24117 states and 38220 transitions. [2024-11-11 21:08:39,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:39,395 INFO L276 IsEmpty]: Start isEmpty. Operand 24117 states and 38220 transitions. [2024-11-11 21:08:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:08:39,409 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:39,410 INFO L218 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] [2024-11-11 21:08:39,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:08:39,410 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:39,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:39,410 INFO L85 PathProgramCache]: Analyzing trace with hash 118844032, now seen corresponding path program 1 times [2024-11-11 21:08:39,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:39,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255018140] [2024-11-11 21:08:39,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:39,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:39,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:39,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:08:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:39,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:08:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:39,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:08:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:39,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:39,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:39,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:39,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255018140] [2024-11-11 21:08:39,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255018140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:39,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:39,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:39,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816894523] [2024-11-11 21:08:39,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:39,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:39,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:39,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:39,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:39,519 INFO L87 Difference]: Start difference. First operand 24117 states and 38220 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:43,985 INFO L93 Difference]: Finished difference Result 89372 states and 142778 transitions. [2024-11-11 21:08:43,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:08:43,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 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 101 [2024-11-11 21:08:43,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:44,238 INFO L225 Difference]: With dead ends: 89372 [2024-11-11 21:08:44,238 INFO L226 Difference]: Without dead ends: 65268 [2024-11-11 21:08:44,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:08:44,311 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 867 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:44,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1438 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 21:08:44,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65268 states. [2024-11-11 21:08:46,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65268 to 47878. [2024-11-11 21:08:47,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47878 states, 42986 states have (on average 1.515539943237333) internal successors, (65147), 43244 states have internal predecessors, (65147), 3093 states have call successors, (3093), 1543 states have call predecessors, (3093), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-11 21:08:47,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47878 states to 47878 states and 78148 transitions. [2024-11-11 21:08:47,487 INFO L78 Accepts]: Start accepts. Automaton has 47878 states and 78148 transitions. Word has length 101 [2024-11-11 21:08:47,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:08:47,491 INFO L471 AbstractCegarLoop]: Abstraction has 47878 states and 78148 transitions. [2024-11-11 21:08:47,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:47,492 INFO L276 IsEmpty]: Start isEmpty. Operand 47878 states and 78148 transitions. [2024-11-11 21:08:47,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:08:47,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:08:47,533 INFO L218 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] [2024-11-11 21:08:47,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:08:47,533 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:08:47,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:08:47,533 INFO L85 PathProgramCache]: Analyzing trace with hash 145909634, now seen corresponding path program 1 times [2024-11-11 21:08:47,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:08:47,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475001516] [2024-11-11 21:08:47,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:08:47,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:08:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:08:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:08:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:08:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:08:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:08:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:08:47,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:08:47,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:08:47,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475001516] [2024-11-11 21:08:47,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475001516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:08:47,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:08:47,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:08:47,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558425010] [2024-11-11 21:08:47,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:08:47,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:08:47,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:08:47,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:08:47,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:08:47,659 INFO L87 Difference]: Start difference. First operand 47878 states and 78148 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:08:54,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:08:54,669 INFO L93 Difference]: Finished difference Result 173451 states and 285872 transitions. [2024-11-11 21:08:54,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:08:54,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 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 101 [2024-11-11 21:08:54,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:08:55,196 INFO L225 Difference]: With dead ends: 173451 [2024-11-11 21:08:55,197 INFO L226 Difference]: Without dead ends: 125586 [2024-11-11 21:08:55,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:08:55,358 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 783 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:08:55,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1438 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 21:08:55,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125586 states. [2024-11-11 21:09:00,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125586 to 95271. [2024-11-11 21:09:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95271 states, 85771 states have (on average 1.5184269741521026) internal successors, (130237), 86285 states have internal predecessors, (130237), 5909 states have call successors, (5909), 3079 states have call predecessors, (5909), 3590 states have return successors, (26102), 6418 states have call predecessors, (26102), 5907 states have call successors, (26102) [2024-11-11 21:09:01,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95271 states to 95271 states and 162248 transitions. [2024-11-11 21:09:01,295 INFO L78 Accepts]: Start accepts. Automaton has 95271 states and 162248 transitions. Word has length 101 [2024-11-11 21:09:01,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:09:01,296 INFO L471 AbstractCegarLoop]: Abstraction has 95271 states and 162248 transitions. [2024-11-11 21:09:01,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 21:09:01,296 INFO L276 IsEmpty]: Start isEmpty. Operand 95271 states and 162248 transitions. [2024-11-11 21:09:01,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:09:01,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:09:01,365 INFO L218 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] [2024-11-11 21:09:01,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:09:01,365 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:09:01,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:09:01,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1931427264, now seen corresponding path program 1 times [2024-11-11 21:09:01,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:09:01,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023821000] [2024-11-11 21:09:01,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:09:01,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:09:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 21:09:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 21:09:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 21:09:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 21:09:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 21:09:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:09:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:09:01,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:09:01,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023821000] [2024-11-11 21:09:01,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023821000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:09:01,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:09:01,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:09:01,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128686766] [2024-11-11 21:09:01,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:09:01,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:09:01,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:09:01,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:09:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:09:01,486 INFO L87 Difference]: Start difference. First operand 95271 states and 162248 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)