./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.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 d6dd7af8c681da9a32811252853803422c95f4df19741eb4bc23f2d0511fe647 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:22:27,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:22:27,287 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:22:27,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:22:27,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:22:27,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:22:27,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:22:27,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:22:27,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:22:27,309 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:22:27,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:22:27,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:22:27,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:22:27,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:22:27,311 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:22:27,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:22:27,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:22:27,312 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:22:27,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:22:27,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:22:27,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:22:27,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:22:27,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:22:27,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:22:27,315 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:22:27,315 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:22:27,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:22:27,315 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:22:27,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:22:27,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:22:27,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:22:27,317 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:22:27,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:22:27,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:22:27,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:22:27,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:22:27,318 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:22:27,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:22:27,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:22:27,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:22:27,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:22:27,320 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:22:27,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6dd7af8c681da9a32811252853803422c95f4df19741eb4bc23f2d0511fe647 [2024-11-22 02:22:27,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:22:27,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:22:27,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:22:27,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:22:27,557 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:22:27,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2024-11-22 02:22:29,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:22:29,240 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:22:29,241 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2024-11-22 02:22:29,250 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab95d1dd7/8aa861affc37428199898b9888489c49/FLAGe912e5ae5 [2024-11-22 02:22:29,262 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab95d1dd7/8aa861affc37428199898b9888489c49 [2024-11-22 02:22:29,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:22:29,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:22:29,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:22:29,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:22:29,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:22:29,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e7f7ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29, skipping insertion in model container [2024-11-22 02:22:29,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,297 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:22:29,553 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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2024-11-22 02:22:29,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:22:29,569 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:22:29,685 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/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2024-11-22 02:22:29,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:22:29,716 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:22:29,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29 WrapperNode [2024-11-22 02:22:29,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:22:29,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:22:29,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:22:29,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:22:29,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,749 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,808 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 427 [2024-11-22 02:22:29,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:22:29,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:22:29,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:22:29,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:22:29,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,873 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 02:22:29,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:22:29,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:22:29,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:22:29,939 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:22:29,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (1/1) ... [2024-11-22 02:22:29,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:22:29,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:30,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 02:22:30,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 02:22:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:22:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2024-11-22 02:22:30,113 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2024-11-22 02:22:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-22 02:22:30,113 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-22 02:22:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2024-11-22 02:22:30,114 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2024-11-22 02:22:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2024-11-22 02:22:30,116 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2024-11-22 02:22:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2024-11-22 02:22:30,116 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2024-11-22 02:22:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:22:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:22:30,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:22:30,304 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:22:30,309 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:22:30,745 INFO L? ?]: Removed 106 outVars from TransFormulas that were not future-live. [2024-11-22 02:22:30,745 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:22:30,767 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:22:30,769 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 02:22:30,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:22:30 BoogieIcfgContainer [2024-11-22 02:22:30,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:22:30,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:22:30,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:22:30,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:22:30,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:22:29" (1/3) ... [2024-11-22 02:22:30,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151279e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:22:30, skipping insertion in model container [2024-11-22 02:22:30,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:22:29" (2/3) ... [2024-11-22 02:22:30,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151279e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:22:30, skipping insertion in model container [2024-11-22 02:22:30,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:22:30" (3/3) ... [2024-11-22 02:22:30,779 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2024-11-22 02:22:30,794 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:22:30,794 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:22:30,845 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:22:30,851 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;@1eb285b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:22:30,852 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:22:30,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 175 states, 136 states have (on average 1.6029411764705883) internal successors, (218), 140 states have internal predecessors, (218), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-22 02:22:30,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-22 02:22:30,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:30,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:30,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:30,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:30,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1581125196, now seen corresponding path program 1 times [2024-11-22 02:22:30,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:30,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058227688] [2024-11-22 02:22:30,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:30,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:31,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:22:31,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:31,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058227688] [2024-11-22 02:22:31,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058227688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:31,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:31,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:31,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866347756] [2024-11-22 02:22:31,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:31,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:31,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:31,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:31,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:31,279 INFO L87 Difference]: Start difference. First operand has 175 states, 136 states have (on average 1.6029411764705883) internal successors, (218), 140 states have internal predecessors, (218), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:22:31,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:31,436 INFO L93 Difference]: Finished difference Result 353 states and 600 transitions. [2024-11-22 02:22:31,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:22:31,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-22 02:22:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:31,452 INFO L225 Difference]: With dead ends: 353 [2024-11-22 02:22:31,452 INFO L226 Difference]: Without dead ends: 177 [2024-11-22 02:22:31,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:31,461 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 7 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:31,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 794 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-22 02:22:31,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-22 02:22:31,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 138 states have (on average 1.5434782608695652) internal successors, (213), 141 states have internal predecessors, (213), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-22 02:22:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 277 transitions. [2024-11-22 02:22:31,503 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 277 transitions. Word has length 15 [2024-11-22 02:22:31,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:31,503 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 277 transitions. [2024-11-22 02:22:31,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:22:31,504 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 277 transitions. [2024-11-22 02:22:31,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-22 02:22:31,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:31,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:31,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:22:31,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:31,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:31,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1712914003, now seen corresponding path program 1 times [2024-11-22 02:22:31,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:31,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48702523] [2024-11-22 02:22:31,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:31,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:31,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:22:31,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:31,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48702523] [2024-11-22 02:22:31,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48702523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:31,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:31,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:31,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525804444] [2024-11-22 02:22:31,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:31,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:31,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:31,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:31,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:31,604 INFO L87 Difference]: Start difference. First operand 177 states and 277 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:22:31,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:31,746 INFO L93 Difference]: Finished difference Result 367 states and 577 transitions. [2024-11-22 02:22:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:31,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-22 02:22:31,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:31,751 INFO L225 Difference]: With dead ends: 367 [2024-11-22 02:22:31,751 INFO L226 Difference]: Without dead ends: 193 [2024-11-22 02:22:31,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:31,759 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 25 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:31,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 798 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:22:31,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-22 02:22:31,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2024-11-22 02:22:31,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 149 states have (on average 1.523489932885906) internal successors, (227), 152 states have internal predecessors, (227), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-22 02:22:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 293 transitions. [2024-11-22 02:22:31,796 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 293 transitions. Word has length 16 [2024-11-22 02:22:31,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:31,796 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 293 transitions. [2024-11-22 02:22:31,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:22:31,797 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 293 transitions. [2024-11-22 02:22:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-22 02:22:31,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:31,801 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:31,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:22:31,802 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:31,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:31,802 INFO L85 PathProgramCache]: Analyzing trace with hash -218612603, now seen corresponding path program 1 times [2024-11-22 02:22:31,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:31,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735258699] [2024-11-22 02:22:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:31,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:22:31,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:31,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735258699] [2024-11-22 02:22:31,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735258699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:31,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:31,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:22:31,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032613555] [2024-11-22 02:22:31,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:31,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:22:31,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:31,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:22:31,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:32,000 INFO L87 Difference]: Start difference. First operand 190 states and 293 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 02:22:32,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:32,042 INFO L93 Difference]: Finished difference Result 399 states and 623 transitions. [2024-11-22 02:22:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:22:32,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-22 02:22:32,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:32,046 INFO L225 Difference]: With dead ends: 399 [2024-11-22 02:22:32,047 INFO L226 Difference]: Without dead ends: 219 [2024-11-22 02:22:32,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:32,049 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 22 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:32,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 536 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:32,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-22 02:22:32,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 192. [2024-11-22 02:22:32,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 151 states have (on average 1.5165562913907285) internal successors, (229), 154 states have internal predecessors, (229), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-22 02:22:32,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 295 transitions. [2024-11-22 02:22:32,089 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 295 transitions. Word has length 23 [2024-11-22 02:22:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:32,089 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 295 transitions. [2024-11-22 02:22:32,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 02:22:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 295 transitions. [2024-11-22 02:22:32,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-22 02:22:32,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:32,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:32,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:22:32,095 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:32,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:32,096 INFO L85 PathProgramCache]: Analyzing trace with hash 805469494, now seen corresponding path program 1 times [2024-11-22 02:22:32,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:32,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044541856] [2024-11-22 02:22:32,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:32,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:22:32,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:32,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044541856] [2024-11-22 02:22:32,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044541856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:32,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:32,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:32,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762896254] [2024-11-22 02:22:32,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:32,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:32,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:32,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:32,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:32,263 INFO L87 Difference]: Start difference. First operand 192 states and 295 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:22:32,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:32,294 INFO L93 Difference]: Finished difference Result 430 states and 678 transitions. [2024-11-22 02:22:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:22:32,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2024-11-22 02:22:32,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:32,296 INFO L225 Difference]: With dead ends: 430 [2024-11-22 02:22:32,296 INFO L226 Difference]: Without dead ends: 289 [2024-11-22 02:22:32,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:32,297 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 119 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:32,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 792 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:32,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-22 02:22:32,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 192. [2024-11-22 02:22:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 151 states have (on average 1.490066225165563) internal successors, (225), 154 states have internal predecessors, (225), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-22 02:22:32,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 291 transitions. [2024-11-22 02:22:32,308 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 291 transitions. Word has length 31 [2024-11-22 02:22:32,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:32,309 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 291 transitions. [2024-11-22 02:22:32,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:22:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 291 transitions. [2024-11-22 02:22:32,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-22 02:22:32,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:32,310 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:32,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:22:32,311 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:32,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:32,311 INFO L85 PathProgramCache]: Analyzing trace with hash -956786536, now seen corresponding path program 1 times [2024-11-22 02:22:32,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:32,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118236257] [2024-11-22 02:22:32,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:32,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:22:32,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:32,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118236257] [2024-11-22 02:22:32,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118236257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:32,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:32,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:22:32,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300499090] [2024-11-22 02:22:32,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:32,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:22:32,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:32,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:22:32,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:32,391 INFO L87 Difference]: Start difference. First operand 192 states and 291 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:22:32,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:32,422 INFO L93 Difference]: Finished difference Result 374 states and 571 transitions. [2024-11-22 02:22:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:32,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-22 02:22:32,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:32,424 INFO L225 Difference]: With dead ends: 374 [2024-11-22 02:22:32,425 INFO L226 Difference]: Without dead ends: 194 [2024-11-22 02:22:32,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:32,455 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 0 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:32,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1054 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:32,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-22 02:22:32,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2024-11-22 02:22:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 151 states have (on average 1.4834437086092715) internal successors, (224), 154 states have internal predecessors, (224), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-22 02:22:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 290 transitions. [2024-11-22 02:22:32,472 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 290 transitions. Word has length 32 [2024-11-22 02:22:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:32,473 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 290 transitions. [2024-11-22 02:22:32,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:22:32,473 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 290 transitions. [2024-11-22 02:22:32,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 02:22:32,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:32,475 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:32,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:22:32,477 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:32,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:32,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1412048612, now seen corresponding path program 1 times [2024-11-22 02:22:32,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:32,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030281032] [2024-11-22 02:22:32,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:32,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:22:32,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:32,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030281032] [2024-11-22 02:22:32,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030281032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:32,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29688629] [2024-11-22 02:22:32,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:32,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:32,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:32,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:32,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:22:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:32,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:22:32,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:32,669 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:22:32,670 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:22:32,700 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:22:32,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29688629] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:22:32,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:22:32,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-22 02:22:32,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007921159] [2024-11-22 02:22:32,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:22:32,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:22:32,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:32,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:22:32,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:22:32,702 INFO L87 Difference]: Start difference. First operand 192 states and 290 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 02:22:32,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:32,735 INFO L93 Difference]: Finished difference Result 432 states and 667 transitions. [2024-11-22 02:22:32,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:32,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 35 [2024-11-22 02:22:32,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:32,737 INFO L225 Difference]: With dead ends: 432 [2024-11-22 02:22:32,737 INFO L226 Difference]: Without dead ends: 251 [2024-11-22 02:22:32,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:22:32,738 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 75 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:32,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 809 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:32,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-22 02:22:32,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 245. [2024-11-22 02:22:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.458762886597938) internal successors, (283), 197 states have internal predecessors, (283), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-22 02:22:32,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 369 transitions. [2024-11-22 02:22:32,748 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 369 transitions. Word has length 35 [2024-11-22 02:22:32,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:32,748 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 369 transitions. [2024-11-22 02:22:32,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 02:22:32,749 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 369 transitions. [2024-11-22 02:22:32,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-22 02:22:32,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:32,750 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:32,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 02:22:32,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-22 02:22:32,955 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:32,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:32,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1166895868, now seen corresponding path program 2 times [2024-11-22 02:22:32,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:32,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507884450] [2024-11-22 02:22:32,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 02:22:32,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:32,967 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 02:22:32,967 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 02:22:32,990 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-22 02:22:32,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:32,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507884450] [2024-11-22 02:22:32,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507884450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:32,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:32,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:32,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566102583] [2024-11-22 02:22:32,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:32,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:32,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:32,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:32,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:32,992 INFO L87 Difference]: Start difference. First operand 245 states and 369 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:22:33,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:33,025 INFO L93 Difference]: Finished difference Result 468 states and 722 transitions. [2024-11-22 02:22:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:22:33,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2024-11-22 02:22:33,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:33,027 INFO L225 Difference]: With dead ends: 468 [2024-11-22 02:22:33,027 INFO L226 Difference]: Without dead ends: 252 [2024-11-22 02:22:33,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:33,029 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 8 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:33,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 772 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:33,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-22 02:22:33,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2024-11-22 02:22:33,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 200 states have (on average 1.455) internal successors, (291), 203 states have internal predecessors, (291), 43 states have call successors, (43), 8 states have call predecessors, (43), 8 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-22 02:22:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 377 transitions. [2024-11-22 02:22:33,038 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 377 transitions. Word has length 57 [2024-11-22 02:22:33,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:33,038 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 377 transitions. [2024-11-22 02:22:33,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:22:33,038 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 377 transitions. [2024-11-22 02:22:33,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-22 02:22:33,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:33,039 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:33,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:22:33,040 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:33,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:33,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1021652299, now seen corresponding path program 1 times [2024-11-22 02:22:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:33,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615207001] [2024-11-22 02:22:33,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:33,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:33,089 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-22 02:22:33,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:33,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615207001] [2024-11-22 02:22:33,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615207001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:33,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:33,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:33,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881799995] [2024-11-22 02:22:33,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:33,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:33,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:33,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:33,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:33,091 INFO L87 Difference]: Start difference. First operand 252 states and 377 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:22:33,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:33,145 INFO L93 Difference]: Finished difference Result 514 states and 780 transitions. [2024-11-22 02:22:33,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:33,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2024-11-22 02:22:33,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:33,147 INFO L225 Difference]: With dead ends: 514 [2024-11-22 02:22:33,147 INFO L226 Difference]: Without dead ends: 291 [2024-11-22 02:22:33,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:33,148 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 24 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:33,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 790 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:33,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-22 02:22:33,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 288. [2024-11-22 02:22:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 232 states have (on average 1.4137931034482758) internal successors, (328), 235 states have internal predecessors, (328), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-22 02:22:33,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 420 transitions. [2024-11-22 02:22:33,158 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 420 transitions. Word has length 57 [2024-11-22 02:22:33,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:33,159 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 420 transitions. [2024-11-22 02:22:33,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:22:33,159 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 420 transitions. [2024-11-22 02:22:33,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 02:22:33,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:33,160 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:33,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:22:33,160 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:33,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:33,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1670828143, now seen corresponding path program 1 times [2024-11-22 02:22:33,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:33,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294723534] [2024-11-22 02:22:33,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:33,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-22 02:22:33,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:33,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294723534] [2024-11-22 02:22:33,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294723534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:33,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:33,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:22:33,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24591522] [2024-11-22 02:22:33,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:33,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:22:33,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:33,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:22:33,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:33,230 INFO L87 Difference]: Start difference. First operand 288 states and 420 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 02:22:33,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:33,254 INFO L93 Difference]: Finished difference Result 525 states and 779 transitions. [2024-11-22 02:22:33,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:33,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 75 [2024-11-22 02:22:33,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:33,256 INFO L225 Difference]: With dead ends: 525 [2024-11-22 02:22:33,257 INFO L226 Difference]: Without dead ends: 290 [2024-11-22 02:22:33,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:33,258 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 0 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:33,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1053 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:33,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-22 02:22:33,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 288. [2024-11-22 02:22:33,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 232 states have (on average 1.4008620689655173) internal successors, (325), 235 states have internal predecessors, (325), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-22 02:22:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 417 transitions. [2024-11-22 02:22:33,268 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 417 transitions. Word has length 75 [2024-11-22 02:22:33,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:33,269 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 417 transitions. [2024-11-22 02:22:33,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 02:22:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 417 transitions. [2024-11-22 02:22:33,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 02:22:33,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:33,270 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:33,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:22:33,270 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:33,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:33,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1243330431, now seen corresponding path program 1 times [2024-11-22 02:22:33,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:33,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669013298] [2024-11-22 02:22:33,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:33,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-22 02:22:33,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:33,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669013298] [2024-11-22 02:22:33,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669013298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:33,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:33,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:33,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19896263] [2024-11-22 02:22:33,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:33,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:33,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:33,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:33,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:33,339 INFO L87 Difference]: Start difference. First operand 288 states and 417 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 02:22:33,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:33,374 INFO L93 Difference]: Finished difference Result 562 states and 835 transitions. [2024-11-22 02:22:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:33,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 104 [2024-11-22 02:22:33,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:33,377 INFO L225 Difference]: With dead ends: 562 [2024-11-22 02:22:33,377 INFO L226 Difference]: Without dead ends: 332 [2024-11-22 02:22:33,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:33,378 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 25 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:33,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 790 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:33,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-22 02:22:33,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 329. [2024-11-22 02:22:33,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 269 states have (on average 1.3643122676579926) internal successors, (367), 272 states have internal predecessors, (367), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-22 02:22:33,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 465 transitions. [2024-11-22 02:22:33,390 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 465 transitions. Word has length 104 [2024-11-22 02:22:33,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:33,390 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 465 transitions. [2024-11-22 02:22:33,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 02:22:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 465 transitions. [2024-11-22 02:22:33,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 02:22:33,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:33,391 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:33,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 02:22:33,391 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:33,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:33,391 INFO L85 PathProgramCache]: Analyzing trace with hash -712190712, now seen corresponding path program 1 times [2024-11-22 02:22:33,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:33,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269809966] [2024-11-22 02:22:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:33,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-22 02:22:33,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:33,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269809966] [2024-11-22 02:22:33,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269809966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:33,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:33,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:33,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763949836] [2024-11-22 02:22:33,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:33,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:33,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:33,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:33,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:33,453 INFO L87 Difference]: Start difference. First operand 329 states and 465 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 02:22:33,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:33,507 INFO L93 Difference]: Finished difference Result 588 states and 855 transitions. [2024-11-22 02:22:33,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:22:33,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 105 [2024-11-22 02:22:33,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:33,509 INFO L225 Difference]: With dead ends: 588 [2024-11-22 02:22:33,509 INFO L226 Difference]: Without dead ends: 323 [2024-11-22 02:22:33,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:33,511 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 9 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:33,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 755 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:33,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-22 02:22:33,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-11-22 02:22:33,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 264 states have (on average 1.3446969696969697) internal successors, (355), 267 states have internal predecessors, (355), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-22 02:22:33,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 451 transitions. [2024-11-22 02:22:33,526 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 451 transitions. Word has length 105 [2024-11-22 02:22:33,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:33,526 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 451 transitions. [2024-11-22 02:22:33,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-22 02:22:33,527 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 451 transitions. [2024-11-22 02:22:33,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-22 02:22:33,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:33,528 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:33,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:22:33,528 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:33,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:33,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1828942627, now seen corresponding path program 1 times [2024-11-22 02:22:33,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:33,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396010173] [2024-11-22 02:22:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:33,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-22 02:22:33,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:33,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396010173] [2024-11-22 02:22:33,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396010173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:33,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:33,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:22:33,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822395384] [2024-11-22 02:22:33,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:33,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:22:33,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:33,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:22:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:33,631 INFO L87 Difference]: Start difference. First operand 323 states and 451 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-22 02:22:33,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:33,658 INFO L93 Difference]: Finished difference Result 563 states and 804 transitions. [2024-11-22 02:22:33,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:33,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 124 [2024-11-22 02:22:33,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:33,660 INFO L225 Difference]: With dead ends: 563 [2024-11-22 02:22:33,660 INFO L226 Difference]: Without dead ends: 325 [2024-11-22 02:22:33,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:33,662 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 0 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:33,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1037 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-22 02:22:33,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2024-11-22 02:22:33,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 264 states have (on average 1.3333333333333333) internal successors, (352), 267 states have internal predecessors, (352), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-22 02:22:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 448 transitions. [2024-11-22 02:22:33,675 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 448 transitions. Word has length 124 [2024-11-22 02:22:33,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:33,676 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 448 transitions. [2024-11-22 02:22:33,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-22 02:22:33,676 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 448 transitions. [2024-11-22 02:22:33,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-22 02:22:33,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:33,677 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:33,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 02:22:33,678 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:33,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:33,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1531403375, now seen corresponding path program 1 times [2024-11-22 02:22:33,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:33,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426718629] [2024-11-22 02:22:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:33,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:33,761 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-11-22 02:22:33,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:33,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426718629] [2024-11-22 02:22:33,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426718629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:33,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:33,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:33,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222741105] [2024-11-22 02:22:33,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:33,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:33,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:33,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:33,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:33,763 INFO L87 Difference]: Start difference. First operand 323 states and 448 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-22 02:22:33,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:33,808 INFO L93 Difference]: Finished difference Result 526 states and 764 transitions. [2024-11-22 02:22:33,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:22:33,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 157 [2024-11-22 02:22:33,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:33,811 INFO L225 Difference]: With dead ends: 526 [2024-11-22 02:22:33,811 INFO L226 Difference]: Without dead ends: 321 [2024-11-22 02:22:33,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:33,812 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 7 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:33,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 723 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:33,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-22 02:22:33,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2024-11-22 02:22:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 263 states have (on average 1.3307984790874525) internal successors, (350), 266 states have internal predecessors, (350), 47 states have call successors, (47), 10 states have call predecessors, (47), 10 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-22 02:22:33,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 444 transitions. [2024-11-22 02:22:33,822 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 444 transitions. Word has length 157 [2024-11-22 02:22:33,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:33,822 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 444 transitions. [2024-11-22 02:22:33,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-22 02:22:33,823 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 444 transitions. [2024-11-22 02:22:33,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-22 02:22:33,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:33,824 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:33,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 02:22:33,824 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:33,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash -124413893, now seen corresponding path program 1 times [2024-11-22 02:22:33,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:33,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810712610] [2024-11-22 02:22:33,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:33,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2024-11-22 02:22:33,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:33,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810712610] [2024-11-22 02:22:33,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810712610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:33,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:33,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:33,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055237326] [2024-11-22 02:22:33,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:33,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:33,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:33,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:33,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:33,939 INFO L87 Difference]: Start difference. First operand 321 states and 444 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 02:22:33,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:33,982 INFO L93 Difference]: Finished difference Result 466 states and 660 transitions. [2024-11-22 02:22:33,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:33,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 172 [2024-11-22 02:22:33,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:33,984 INFO L225 Difference]: With dead ends: 466 [2024-11-22 02:22:33,984 INFO L226 Difference]: Without dead ends: 304 [2024-11-22 02:22:33,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:33,985 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 35 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:33,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 699 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:33,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-22 02:22:33,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-11-22 02:22:33,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 249 states have (on average 1.321285140562249) internal successors, (329), 252 states have internal predecessors, (329), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-22 02:22:33,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 417 transitions. [2024-11-22 02:22:33,996 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 417 transitions. Word has length 172 [2024-11-22 02:22:33,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:33,996 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 417 transitions. [2024-11-22 02:22:33,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 02:22:33,997 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 417 transitions. [2024-11-22 02:22:33,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-22 02:22:33,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:33,998 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:33,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 02:22:33,998 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:33,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:33,999 INFO L85 PathProgramCache]: Analyzing trace with hash -225788768, now seen corresponding path program 1 times [2024-11-22 02:22:33,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:33,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367288537] [2024-11-22 02:22:33,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:33,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:34,109 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2024-11-22 02:22:34,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:34,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367288537] [2024-11-22 02:22:34,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367288537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:34,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:34,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:34,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696800158] [2024-11-22 02:22:34,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:34,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:34,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:34,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:34,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:34,111 INFO L87 Difference]: Start difference. First operand 304 states and 417 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 02:22:34,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:34,155 INFO L93 Difference]: Finished difference Result 449 states and 633 transitions. [2024-11-22 02:22:34,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:34,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 174 [2024-11-22 02:22:34,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:34,158 INFO L225 Difference]: With dead ends: 449 [2024-11-22 02:22:34,158 INFO L226 Difference]: Without dead ends: 285 [2024-11-22 02:22:34,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:34,159 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 30 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:34,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 703 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-22 02:22:34,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-22 02:22:34,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 233 states have (on average 1.3133047210300428) internal successors, (306), 236 states have internal predecessors, (306), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-22 02:22:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 388 transitions. [2024-11-22 02:22:34,178 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 388 transitions. Word has length 174 [2024-11-22 02:22:34,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:34,178 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 388 transitions. [2024-11-22 02:22:34,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 02:22:34,179 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 388 transitions. [2024-11-22 02:22:34,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 02:22:34,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:34,184 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:34,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 02:22:34,184 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:34,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:34,184 INFO L85 PathProgramCache]: Analyzing trace with hash -771772203, now seen corresponding path program 1 times [2024-11-22 02:22:34,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:34,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597942105] [2024-11-22 02:22:34,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:34,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-11-22 02:22:34,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:34,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597942105] [2024-11-22 02:22:34,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597942105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:34,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:34,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:22:34,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271836691] [2024-11-22 02:22:34,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:34,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:22:34,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:34,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:22:34,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:34,283 INFO L87 Difference]: Start difference. First operand 285 states and 388 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-22 02:22:34,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:34,305 INFO L93 Difference]: Finished difference Result 429 states and 603 transitions. [2024-11-22 02:22:34,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:34,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 175 [2024-11-22 02:22:34,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:34,307 INFO L225 Difference]: With dead ends: 429 [2024-11-22 02:22:34,307 INFO L226 Difference]: Without dead ends: 285 [2024-11-22 02:22:34,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:34,308 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 0 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:34,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1015 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:34,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-22 02:22:34,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-22 02:22:34,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 233 states have (on average 1.2875536480686696) internal successors, (300), 236 states have internal predecessors, (300), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-22 02:22:34,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 382 transitions. [2024-11-22 02:22:34,318 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 382 transitions. Word has length 175 [2024-11-22 02:22:34,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:34,319 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 382 transitions. [2024-11-22 02:22:34,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-22 02:22:34,319 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 382 transitions. [2024-11-22 02:22:34,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-22 02:22:34,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:34,320 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:34,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 02:22:34,320 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:34,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:34,321 INFO L85 PathProgramCache]: Analyzing trace with hash 171596258, now seen corresponding path program 1 times [2024-11-22 02:22:34,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:34,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322556633] [2024-11-22 02:22:34,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:34,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-22 02:22:34,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:34,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322556633] [2024-11-22 02:22:34,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322556633] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:34,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005982085] [2024-11-22 02:22:34,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:34,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:34,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:34,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:34,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 02:22:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:34,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 02:22:34,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:34,585 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-22 02:22:34,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:22:34,708 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-22 02:22:34,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005982085] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:34,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 02:22:34,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 5 [2024-11-22 02:22:34,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555503686] [2024-11-22 02:22:34,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:34,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:34,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:34,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:34,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:34,710 INFO L87 Difference]: Start difference. First operand 285 states and 382 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 02:22:34,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:34,754 INFO L93 Difference]: Finished difference Result 450 states and 625 transitions. [2024-11-22 02:22:34,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:22:34,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 182 [2024-11-22 02:22:34,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:34,756 INFO L225 Difference]: With dead ends: 450 [2024-11-22 02:22:34,756 INFO L226 Difference]: Without dead ends: 264 [2024-11-22 02:22:34,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:34,757 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 30 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:34,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 481 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:34,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-22 02:22:34,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2024-11-22 02:22:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 215 states have (on average 1.2790697674418605) internal successors, (275), 218 states have internal predecessors, (275), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 02:22:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 351 transitions. [2024-11-22 02:22:34,767 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 351 transitions. Word has length 182 [2024-11-22 02:22:34,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:34,767 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 351 transitions. [2024-11-22 02:22:34,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-22 02:22:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 351 transitions. [2024-11-22 02:22:34,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-22 02:22:34,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:34,769 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:34,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 02:22:34,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 02:22:34,970 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:34,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:34,971 INFO L85 PathProgramCache]: Analyzing trace with hash 687203413, now seen corresponding path program 1 times [2024-11-22 02:22:34,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:34,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074668142] [2024-11-22 02:22:34,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:34,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-11-22 02:22:35,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:35,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074668142] [2024-11-22 02:22:35,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074668142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:35,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:35,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:35,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451538780] [2024-11-22 02:22:35,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:35,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:35,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:35,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:35,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:35,066 INFO L87 Difference]: Start difference. First operand 264 states and 351 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-22 02:22:35,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:35,093 INFO L93 Difference]: Finished difference Result 405 states and 564 transitions. [2024-11-22 02:22:35,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:22:35,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 206 [2024-11-22 02:22:35,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:35,096 INFO L225 Difference]: With dead ends: 405 [2024-11-22 02:22:35,096 INFO L226 Difference]: Without dead ends: 268 [2024-11-22 02:22:35,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:35,097 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 3 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:35,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 743 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-22 02:22:35,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-22 02:22:35,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 218 states have (on average 1.275229357798165) internal successors, (278), 221 states have internal predecessors, (278), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 02:22:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 354 transitions. [2024-11-22 02:22:35,109 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 354 transitions. Word has length 206 [2024-11-22 02:22:35,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:35,110 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 354 transitions. [2024-11-22 02:22:35,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-22 02:22:35,111 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 354 transitions. [2024-11-22 02:22:35,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-22 02:22:35,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:35,112 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:35,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 02:22:35,113 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:35,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:35,113 INFO L85 PathProgramCache]: Analyzing trace with hash 209531083, now seen corresponding path program 1 times [2024-11-22 02:22:35,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:35,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997990305] [2024-11-22 02:22:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:35,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:35,253 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-11-22 02:22:35,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:35,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997990305] [2024-11-22 02:22:35,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997990305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:35,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:35,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:35,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905817932] [2024-11-22 02:22:35,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:35,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:35,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:35,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:35,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:35,256 INFO L87 Difference]: Start difference. First operand 268 states and 354 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-22 02:22:35,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:35,289 INFO L93 Difference]: Finished difference Result 414 states and 572 transitions. [2024-11-22 02:22:35,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:22:35,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 213 [2024-11-22 02:22:35,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:35,291 INFO L225 Difference]: With dead ends: 414 [2024-11-22 02:22:35,291 INFO L226 Difference]: Without dead ends: 273 [2024-11-22 02:22:35,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:35,292 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 4 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:35,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 745 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:35,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-22 02:22:35,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-22 02:22:35,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 222 states have (on average 1.2702702702702702) internal successors, (282), 225 states have internal predecessors, (282), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-22 02:22:35,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 358 transitions. [2024-11-22 02:22:35,303 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 358 transitions. Word has length 213 [2024-11-22 02:22:35,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:35,303 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 358 transitions. [2024-11-22 02:22:35,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-22 02:22:35,304 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 358 transitions. [2024-11-22 02:22:35,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-22 02:22:35,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:35,305 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:35,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 02:22:35,305 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:35,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:35,306 INFO L85 PathProgramCache]: Analyzing trace with hash 915774272, now seen corresponding path program 1 times [2024-11-22 02:22:35,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:35,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923028493] [2024-11-22 02:22:35,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:35,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2024-11-22 02:22:35,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:35,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923028493] [2024-11-22 02:22:35,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923028493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:35,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:35,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:35,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510439258] [2024-11-22 02:22:35,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:35,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:35,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:35,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:35,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:35,406 INFO L87 Difference]: Start difference. First operand 273 states and 358 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-22 02:22:35,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:35,434 INFO L93 Difference]: Finished difference Result 418 states and 572 transitions. [2024-11-22 02:22:35,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:22:35,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 221 [2024-11-22 02:22:35,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:35,436 INFO L225 Difference]: With dead ends: 418 [2024-11-22 02:22:35,437 INFO L226 Difference]: Without dead ends: 272 [2024-11-22 02:22:35,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:35,437 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 5 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:35,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 735 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:35,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-22 02:22:35,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2024-11-22 02:22:35,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 222 states have (on average 1.2567567567567568) internal successors, (279), 224 states have internal predecessors, (279), 37 states have call successors, (37), 12 states have call predecessors, (37), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-22 02:22:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 353 transitions. [2024-11-22 02:22:35,449 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 353 transitions. Word has length 221 [2024-11-22 02:22:35,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:35,450 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 353 transitions. [2024-11-22 02:22:35,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-22 02:22:35,450 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 353 transitions. [2024-11-22 02:22:35,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-22 02:22:35,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:35,452 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:35,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 02:22:35,452 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:35,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:35,452 INFO L85 PathProgramCache]: Analyzing trace with hash 568293619, now seen corresponding path program 1 times [2024-11-22 02:22:35,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:35,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670802535] [2024-11-22 02:22:35,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:35,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:35,582 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2024-11-22 02:22:35,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:35,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670802535] [2024-11-22 02:22:35,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670802535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:35,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:35,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:22:35,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988572253] [2024-11-22 02:22:35,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:35,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:22:35,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:35,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:22:35,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:35,588 INFO L87 Difference]: Start difference. First operand 272 states and 353 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-22 02:22:35,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:35,608 INFO L93 Difference]: Finished difference Result 416 states and 561 transitions. [2024-11-22 02:22:35,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:22:35,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 228 [2024-11-22 02:22:35,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:35,614 INFO L225 Difference]: With dead ends: 416 [2024-11-22 02:22:35,614 INFO L226 Difference]: Without dead ends: 271 [2024-11-22 02:22:35,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:35,619 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 0 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:35,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 490 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:35,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-22 02:22:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-22 02:22:35,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 222 states have (on average 1.2522522522522523) internal successors, (278), 223 states have internal predecessors, (278), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-22 02:22:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 350 transitions. [2024-11-22 02:22:35,639 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 350 transitions. Word has length 228 [2024-11-22 02:22:35,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:35,641 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 350 transitions. [2024-11-22 02:22:35,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-22 02:22:35,642 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 350 transitions. [2024-11-22 02:22:35,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-22 02:22:35,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:35,644 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:35,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 02:22:35,645 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:35,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1358671604, now seen corresponding path program 1 times [2024-11-22 02:22:35,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:35,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889715650] [2024-11-22 02:22:35,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:35,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2024-11-22 02:22:36,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:36,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889715650] [2024-11-22 02:22:36,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889715650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:36,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:36,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:36,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942450062] [2024-11-22 02:22:36,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:36,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:36,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:36,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:36,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:36,009 INFO L87 Difference]: Start difference. First operand 271 states and 350 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 02:22:36,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:36,122 INFO L93 Difference]: Finished difference Result 621 states and 830 transitions. [2024-11-22 02:22:36,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:36,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 231 [2024-11-22 02:22:36,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:36,129 INFO L225 Difference]: With dead ends: 621 [2024-11-22 02:22:36,133 INFO L226 Difference]: Without dead ends: 477 [2024-11-22 02:22:36,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:36,134 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 313 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:36,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 695 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:22:36,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-22 02:22:36,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 423. [2024-11-22 02:22:36,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 344 states have (on average 1.2994186046511629) internal successors, (447), 346 states have internal predecessors, (447), 54 states have call successors, (54), 24 states have call predecessors, (54), 24 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-22 02:22:36,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 555 transitions. [2024-11-22 02:22:36,172 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 555 transitions. Word has length 231 [2024-11-22 02:22:36,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:36,172 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 555 transitions. [2024-11-22 02:22:36,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 02:22:36,173 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 555 transitions. [2024-11-22 02:22:36,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-22 02:22:36,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:36,178 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:36,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 02:22:36,179 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:36,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:36,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1534595272, now seen corresponding path program 1 times [2024-11-22 02:22:36,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:36,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37714997] [2024-11-22 02:22:36,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:36,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:36,382 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2024-11-22 02:22:36,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:36,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37714997] [2024-11-22 02:22:36,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37714997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:36,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:36,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:22:36,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957124882] [2024-11-22 02:22:36,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:36,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:22:36,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:36,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:22:36,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:36,388 INFO L87 Difference]: Start difference. First operand 423 states and 555 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 02:22:36,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:36,451 INFO L93 Difference]: Finished difference Result 893 states and 1225 transitions. [2024-11-22 02:22:36,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:22:36,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 258 [2024-11-22 02:22:36,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:36,459 INFO L225 Difference]: With dead ends: 893 [2024-11-22 02:22:36,460 INFO L226 Difference]: Without dead ends: 665 [2024-11-22 02:22:36,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:36,461 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 170 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:36,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 510 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:36,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-22 02:22:36,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 503. [2024-11-22 02:22:36,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 414 states have (on average 1.3091787439613527) internal successors, (542), 417 states have internal predecessors, (542), 59 states have call successors, (59), 29 states have call predecessors, (59), 29 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-22 02:22:36,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 660 transitions. [2024-11-22 02:22:36,513 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 660 transitions. Word has length 258 [2024-11-22 02:22:36,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:36,513 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 660 transitions. [2024-11-22 02:22:36,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 02:22:36,514 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 660 transitions. [2024-11-22 02:22:36,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-22 02:22:36,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:36,519 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:36,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 02:22:36,520 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:36,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:36,520 INFO L85 PathProgramCache]: Analyzing trace with hash -141182582, now seen corresponding path program 1 times [2024-11-22 02:22:36,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:36,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258228324] [2024-11-22 02:22:36,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:36,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2024-11-22 02:22:36,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:36,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258228324] [2024-11-22 02:22:36,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258228324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:36,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:36,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:22:36,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381992447] [2024-11-22 02:22:36,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:36,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:22:36,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:36,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:22:36,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:36,686 INFO L87 Difference]: Start difference. First operand 503 states and 660 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 02:22:36,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:36,724 INFO L93 Difference]: Finished difference Result 1067 states and 1456 transitions. [2024-11-22 02:22:36,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:22:36,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 259 [2024-11-22 02:22:36,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:36,728 INFO L225 Difference]: With dead ends: 1067 [2024-11-22 02:22:36,728 INFO L226 Difference]: Without dead ends: 788 [2024-11-22 02:22:36,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:36,729 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 172 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:36,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 527 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:36,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2024-11-22 02:22:36,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 613. [2024-11-22 02:22:36,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 512 states have (on average 1.3203125) internal successors, (676), 517 states have internal predecessors, (676), 65 states have call successors, (65), 35 states have call predecessors, (65), 35 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-22 02:22:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 806 transitions. [2024-11-22 02:22:36,762 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 806 transitions. Word has length 259 [2024-11-22 02:22:36,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:36,763 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 806 transitions. [2024-11-22 02:22:36,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 02:22:36,763 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 806 transitions. [2024-11-22 02:22:36,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-22 02:22:36,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:36,768 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:36,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 02:22:36,769 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:36,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:36,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1355646765, now seen corresponding path program 1 times [2024-11-22 02:22:36,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:36,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476996200] [2024-11-22 02:22:36,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:36,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:36,884 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2024-11-22 02:22:36,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:36,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476996200] [2024-11-22 02:22:36,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476996200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:36,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:36,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:22:36,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474328642] [2024-11-22 02:22:36,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:36,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:22:36,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:36,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:22:36,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:36,886 INFO L87 Difference]: Start difference. First operand 613 states and 806 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 02:22:36,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:36,930 INFO L93 Difference]: Finished difference Result 1283 states and 1750 transitions. [2024-11-22 02:22:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:22:36,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 260 [2024-11-22 02:22:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:36,935 INFO L225 Difference]: With dead ends: 1283 [2024-11-22 02:22:36,935 INFO L226 Difference]: Without dead ends: 926 [2024-11-22 02:22:36,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:36,937 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 173 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:36,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 543 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-22 02:22:36,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 723. [2024-11-22 02:22:36,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 614 states have (on average 1.3355048859934853) internal successors, (820), 623 states have internal predecessors, (820), 69 states have call successors, (69), 39 states have call predecessors, (69), 39 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-22 02:22:36,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 958 transitions. [2024-11-22 02:22:36,992 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 958 transitions. Word has length 260 [2024-11-22 02:22:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:36,996 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 958 transitions. [2024-11-22 02:22:36,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 02:22:36,997 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 958 transitions. [2024-11-22 02:22:36,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-22 02:22:37,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:37,002 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:37,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 02:22:37,003 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:37,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:37,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1080887151, now seen corresponding path program 1 times [2024-11-22 02:22:37,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:37,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645331343] [2024-11-22 02:22:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:37,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:37,328 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2024-11-22 02:22:37,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:37,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645331343] [2024-11-22 02:22:37,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645331343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:37,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284077820] [2024-11-22 02:22:37,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:37,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:37,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:37,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:37,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 02:22:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:37,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:22:37,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:37,572 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2024-11-22 02:22:37,572 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:22:37,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284077820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:37,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:22:37,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-22 02:22:37,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413932666] [2024-11-22 02:22:37,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:37,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:37,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:37,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:22:37,574 INFO L87 Difference]: Start difference. First operand 723 states and 958 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 02:22:37,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:37,660 INFO L93 Difference]: Finished difference Result 1194 states and 1622 transitions. [2024-11-22 02:22:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:37,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 260 [2024-11-22 02:22:37,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:37,664 INFO L225 Difference]: With dead ends: 1194 [2024-11-22 02:22:37,664 INFO L226 Difference]: Without dead ends: 723 [2024-11-22 02:22:37,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:22:37,666 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 31 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:37,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 670 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:37,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-11-22 02:22:37,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2024-11-22 02:22:37,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 614 states have (on average 1.3257328990228012) internal successors, (814), 623 states have internal predecessors, (814), 69 states have call successors, (69), 39 states have call predecessors, (69), 39 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-22 02:22:37,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 952 transitions. [2024-11-22 02:22:37,697 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 952 transitions. Word has length 260 [2024-11-22 02:22:37,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:37,698 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 952 transitions. [2024-11-22 02:22:37,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 02:22:37,698 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 952 transitions. [2024-11-22 02:22:37,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-22 02:22:37,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:37,701 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:37,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 02:22:37,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:37,902 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:37,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:37,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1702413312, now seen corresponding path program 1 times [2024-11-22 02:22:37,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:37,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866539993] [2024-11-22 02:22:37,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:37,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2024-11-22 02:22:38,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:38,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866539993] [2024-11-22 02:22:38,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866539993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:38,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174591472] [2024-11-22 02:22:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:38,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:38,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:38,118 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:38,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 02:22:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:38,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 02:22:38,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2024-11-22 02:22:38,329 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:22:38,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174591472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:38,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:22:38,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-22 02:22:38,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966897406] [2024-11-22 02:22:38,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:38,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:38,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:38,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:38,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:22:38,330 INFO L87 Difference]: Start difference. First operand 723 states and 952 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 02:22:38,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:38,406 INFO L93 Difference]: Finished difference Result 1194 states and 1608 transitions. [2024-11-22 02:22:38,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:38,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 261 [2024-11-22 02:22:38,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:38,411 INFO L225 Difference]: With dead ends: 1194 [2024-11-22 02:22:38,411 INFO L226 Difference]: Without dead ends: 735 [2024-11-22 02:22:38,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:22:38,413 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 7 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:38,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 678 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:38,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-22 02:22:38,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2024-11-22 02:22:38,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 624 states have (on average 1.3269230769230769) internal successors, (828), 633 states have internal predecessors, (828), 69 states have call successors, (69), 41 states have call predecessors, (69), 41 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-22 02:22:38,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 966 transitions. [2024-11-22 02:22:38,438 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 966 transitions. Word has length 261 [2024-11-22 02:22:38,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:38,438 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 966 transitions. [2024-11-22 02:22:38,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 02:22:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 966 transitions. [2024-11-22 02:22:38,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-22 02:22:38,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:38,446 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:38,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 02:22:38,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-22 02:22:38,647 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:38,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:38,648 INFO L85 PathProgramCache]: Analyzing trace with hash -955415893, now seen corresponding path program 1 times [2024-11-22 02:22:38,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:38,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564337814] [2024-11-22 02:22:38,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:38,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:38,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:38,821 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2024-11-22 02:22:38,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:38,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564337814] [2024-11-22 02:22:38,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564337814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:38,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:38,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:22:38,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445387680] [2024-11-22 02:22:38,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:38,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:22:38,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:38,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:22:38,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:38,836 INFO L87 Difference]: Start difference. First operand 735 states and 966 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 02:22:38,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:38,870 INFO L93 Difference]: Finished difference Result 1208 states and 1622 transitions. [2024-11-22 02:22:38,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:22:38,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 262 [2024-11-22 02:22:38,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:38,874 INFO L225 Difference]: With dead ends: 1208 [2024-11-22 02:22:38,875 INFO L226 Difference]: Without dead ends: 715 [2024-11-22 02:22:38,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:22:38,876 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 0 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:38,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 487 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:38,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-22 02:22:38,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2024-11-22 02:22:38,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 605 states have (on average 1.3107438016528925) internal successors, (793), 613 states have internal predecessors, (793), 69 states have call successors, (69), 41 states have call predecessors, (69), 40 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-22 02:22:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 930 transitions. [2024-11-22 02:22:38,911 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 930 transitions. Word has length 262 [2024-11-22 02:22:38,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:38,911 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 930 transitions. [2024-11-22 02:22:38,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 02:22:38,912 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 930 transitions. [2024-11-22 02:22:38,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-22 02:22:38,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:38,914 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:38,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 02:22:38,915 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:38,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:38,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1386884296, now seen corresponding path program 1 times [2024-11-22 02:22:38,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:38,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499342083] [2024-11-22 02:22:38,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:38,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:39,254 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2024-11-22 02:22:39,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:39,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499342083] [2024-11-22 02:22:39,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499342083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:39,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:39,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:22:39,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774002416] [2024-11-22 02:22:39,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:39,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:22:39,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:39,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:22:39,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:22:39,256 INFO L87 Difference]: Start difference. First operand 715 states and 930 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 02:22:39,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:39,320 INFO L93 Difference]: Finished difference Result 1036 states and 1422 transitions. [2024-11-22 02:22:39,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:22:39,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 263 [2024-11-22 02:22:39,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:39,325 INFO L225 Difference]: With dead ends: 1036 [2024-11-22 02:22:39,325 INFO L226 Difference]: Without dead ends: 1034 [2024-11-22 02:22:39,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:22:39,326 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 120 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:39,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1732 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:39,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2024-11-22 02:22:39,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 721. [2024-11-22 02:22:39,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 609 states have (on average 1.3087027914614122) internal successors, (797), 618 states have internal predecessors, (797), 70 states have call successors, (70), 42 states have call predecessors, (70), 41 states have return successors, (69), 67 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-22 02:22:39,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 936 transitions. [2024-11-22 02:22:39,357 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 936 transitions. Word has length 263 [2024-11-22 02:22:39,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:39,357 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 936 transitions. [2024-11-22 02:22:39,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 02:22:39,358 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 936 transitions. [2024-11-22 02:22:39,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-22 02:22:39,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:39,360 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:39,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 02:22:39,360 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:39,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:39,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1763607020, now seen corresponding path program 1 times [2024-11-22 02:22:39,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:39,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858085368] [2024-11-22 02:22:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:39,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 142 proven. 27 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2024-11-22 02:22:39,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:39,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858085368] [2024-11-22 02:22:39,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858085368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:39,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876043457] [2024-11-22 02:22:39,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:39,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:39,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:39,678 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:39,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 02:22:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:39,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 02:22:39,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:40,029 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 251 proven. 33 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-22 02:22:40,029 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:22:40,343 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 146 proven. 23 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2024-11-22 02:22:40,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876043457] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:22:40,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:22:40,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 18 [2024-11-22 02:22:40,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489819127] [2024-11-22 02:22:40,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:22:40,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 02:22:40,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:40,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 02:22:40,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-22 02:22:40,346 INFO L87 Difference]: Start difference. First operand 721 states and 936 transitions. Second operand has 18 states, 18 states have (on average 8.0) internal successors, (144), 14 states have internal predecessors, (144), 5 states have call successors, (25), 4 states have call predecessors, (25), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-22 02:22:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:40,715 INFO L93 Difference]: Finished difference Result 1726 states and 2317 transitions. [2024-11-22 02:22:40,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 02:22:40,715 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.0) internal successors, (144), 14 states have internal predecessors, (144), 5 states have call successors, (25), 4 states have call predecessors, (25), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) Word has length 271 [2024-11-22 02:22:40,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:40,720 INFO L225 Difference]: With dead ends: 1726 [2024-11-22 02:22:40,720 INFO L226 Difference]: Without dead ends: 1267 [2024-11-22 02:22:40,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 533 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2024-11-22 02:22:40,722 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 267 mSDsluCounter, 3067 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 3407 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:40,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 3407 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:22:40,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-22 02:22:40,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 989. [2024-11-22 02:22:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 837 states have (on average 1.2915173237753883) internal successors, (1081), 847 states have internal predecessors, (1081), 94 states have call successors, (94), 55 states have call predecessors, (94), 57 states have return successors, (98), 93 states have call predecessors, (98), 93 states have call successors, (98) [2024-11-22 02:22:40,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1273 transitions. [2024-11-22 02:22:40,796 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1273 transitions. Word has length 271 [2024-11-22 02:22:40,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:40,796 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1273 transitions. [2024-11-22 02:22:40,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.0) internal successors, (144), 14 states have internal predecessors, (144), 5 states have call successors, (25), 4 states have call predecessors, (25), 9 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-22 02:22:40,797 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1273 transitions. [2024-11-22 02:22:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-22 02:22:40,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:40,800 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:40,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 02:22:41,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:41,005 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:41,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:41,006 INFO L85 PathProgramCache]: Analyzing trace with hash -801993003, now seen corresponding path program 1 times [2024-11-22 02:22:41,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:41,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845104391] [2024-11-22 02:22:41,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:41,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2024-11-22 02:22:41,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:41,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845104391] [2024-11-22 02:22:41,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845104391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:41,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734048390] [2024-11-22 02:22:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:41,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:41,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:41,115 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:41,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 02:22:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:41,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 02:22:41,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2024-11-22 02:22:41,326 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:22:41,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734048390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:41,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:22:41,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-22 02:22:41,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234827982] [2024-11-22 02:22:41,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:41,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:41,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:41,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:41,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:41,328 INFO L87 Difference]: Start difference. First operand 989 states and 1273 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 02:22:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:41,413 INFO L93 Difference]: Finished difference Result 1841 states and 2410 transitions. [2024-11-22 02:22:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:41,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 271 [2024-11-22 02:22:41,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:41,417 INFO L225 Difference]: With dead ends: 1841 [2024-11-22 02:22:41,417 INFO L226 Difference]: Without dead ends: 973 [2024-11-22 02:22:41,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:41,419 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 4 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:41,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 675 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:41,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2024-11-22 02:22:41,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 973. [2024-11-22 02:22:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 826 states have (on average 1.2796610169491525) internal successors, (1057), 836 states have internal predecessors, (1057), 90 states have call successors, (90), 55 states have call predecessors, (90), 56 states have return successors, (93), 88 states have call predecessors, (93), 89 states have call successors, (93) [2024-11-22 02:22:41,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1240 transitions. [2024-11-22 02:22:41,452 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1240 transitions. Word has length 271 [2024-11-22 02:22:41,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:41,453 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1240 transitions. [2024-11-22 02:22:41,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 02:22:41,453 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1240 transitions. [2024-11-22 02:22:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-22 02:22:41,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:41,455 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:41,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 02:22:41,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:41,657 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:41,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:41,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1829250860, now seen corresponding path program 1 times [2024-11-22 02:22:41,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:41,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525990002] [2024-11-22 02:22:41,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:41,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:41,749 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 121 proven. 19 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2024-11-22 02:22:41,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:41,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525990002] [2024-11-22 02:22:41,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525990002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:41,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301769121] [2024-11-22 02:22:41,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:41,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:41,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:41,753 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:41,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 02:22:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:41,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 02:22:41,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-22 02:22:41,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:22:41,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301769121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:41,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:22:41,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-22 02:22:41,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522805086] [2024-11-22 02:22:41,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:41,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:41,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:41,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:41,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:41,948 INFO L87 Difference]: Start difference. First operand 973 states and 1240 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 02:22:42,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:42,028 INFO L93 Difference]: Finished difference Result 1689 states and 2194 transitions. [2024-11-22 02:22:42,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:42,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 274 [2024-11-22 02:22:42,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:42,031 INFO L225 Difference]: With dead ends: 1689 [2024-11-22 02:22:42,032 INFO L226 Difference]: Without dead ends: 828 [2024-11-22 02:22:42,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:42,034 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 4 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:42,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 703 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:42,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-22 02:22:42,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2024-11-22 02:22:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 699 states have (on average 1.2789699570815452) internal successors, (894), 709 states have internal predecessors, (894), 81 states have call successors, (81), 48 states have call predecessors, (81), 47 states have return successors, (80), 77 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-22 02:22:42,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1055 transitions. [2024-11-22 02:22:42,064 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1055 transitions. Word has length 274 [2024-11-22 02:22:42,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:42,064 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1055 transitions. [2024-11-22 02:22:42,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 02:22:42,064 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1055 transitions. [2024-11-22 02:22:42,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-22 02:22:42,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:42,067 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 8, 8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:42,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 02:22:42,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:42,268 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:42,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:42,269 INFO L85 PathProgramCache]: Analyzing trace with hash 211214063, now seen corresponding path program 1 times [2024-11-22 02:22:42,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:42,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718603584] [2024-11-22 02:22:42,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:42,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-22 02:22:42,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:42,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718603584] [2024-11-22 02:22:42,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718603584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:42,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75377370] [2024-11-22 02:22:42,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:42,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:42,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:42,764 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:42,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 02:22:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:42,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 02:22:42,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:43,094 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-11-22 02:22:43,094 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:22:43,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75377370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:43,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:22:43,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-22 02:22:43,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781567137] [2024-11-22 02:22:43,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:43,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 02:22:43,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:43,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 02:22:43,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-22 02:22:43,096 INFO L87 Difference]: Start difference. First operand 828 states and 1055 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 02:22:43,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:43,339 INFO L93 Difference]: Finished difference Result 1578 states and 2038 transitions. [2024-11-22 02:22:43,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 02:22:43,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 286 [2024-11-22 02:22:43,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:43,345 INFO L225 Difference]: With dead ends: 1578 [2024-11-22 02:22:43,345 INFO L226 Difference]: Without dead ends: 1112 [2024-11-22 02:22:43,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-22 02:22:43,346 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 127 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:43,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1701 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:22:43,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-11-22 02:22:43,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 990. [2024-11-22 02:22:43,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 833 states have (on average 1.2725090036014406) internal successors, (1060), 844 states have internal predecessors, (1060), 99 states have call successors, (99), 58 states have call predecessors, (99), 57 states have return successors, (98), 94 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-22 02:22:43,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1257 transitions. [2024-11-22 02:22:43,398 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1257 transitions. Word has length 286 [2024-11-22 02:22:43,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:43,399 INFO L471 AbstractCegarLoop]: Abstraction has 990 states and 1257 transitions. [2024-11-22 02:22:43,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 02:22:43,399 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1257 transitions. [2024-11-22 02:22:43,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-22 02:22:43,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:43,402 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:43,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 02:22:43,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-22 02:22:43,603 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:43,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:43,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1543527212, now seen corresponding path program 1 times [2024-11-22 02:22:43,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:43,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058847082] [2024-11-22 02:22:43,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:43,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2024-11-22 02:22:43,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:43,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058847082] [2024-11-22 02:22:43,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058847082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:43,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:43,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:22:43,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8867443] [2024-11-22 02:22:43,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:43,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:22:43,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:43,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:22:43,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:22:43,795 INFO L87 Difference]: Start difference. First operand 990 states and 1257 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 5 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 02:22:43,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:43,862 INFO L93 Difference]: Finished difference Result 1714 states and 2250 transitions. [2024-11-22 02:22:43,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:22:43,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 5 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 292 [2024-11-22 02:22:43,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:43,867 INFO L225 Difference]: With dead ends: 1714 [2024-11-22 02:22:43,867 INFO L226 Difference]: Without dead ends: 1071 [2024-11-22 02:22:43,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:22:43,869 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 37 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:43,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 981 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:22:43,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-22 02:22:43,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1045. [2024-11-22 02:22:43,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 876 states have (on average 1.2831050228310503) internal successors, (1124), 887 states have internal predecessors, (1124), 111 states have call successors, (111), 58 states have call predecessors, (111), 57 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-22 02:22:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1345 transitions. [2024-11-22 02:22:43,904 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1345 transitions. Word has length 292 [2024-11-22 02:22:43,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:43,905 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1345 transitions. [2024-11-22 02:22:43,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 5 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 02:22:43,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1345 transitions. [2024-11-22 02:22:43,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-22 02:22:43,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:43,906 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:43,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 02:22:43,906 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:43,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:43,907 INFO L85 PathProgramCache]: Analyzing trace with hash -286887768, now seen corresponding path program 1 times [2024-11-22 02:22:43,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:43,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147438274] [2024-11-22 02:22:43,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:43,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 02:22:44,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:44,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147438274] [2024-11-22 02:22:44,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147438274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:44,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196374653] [2024-11-22 02:22:44,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:44,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:44,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:44,332 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:44,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 02:22:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:44,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-22 02:22:44,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-11-22 02:22:44,683 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:22:44,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196374653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:44,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:22:44,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 16 [2024-11-22 02:22:44,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887709887] [2024-11-22 02:22:44,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:44,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 02:22:44,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:44,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 02:22:44,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-22 02:22:44,685 INFO L87 Difference]: Start difference. First operand 1045 states and 1345 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 states have internal predecessors, (113), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 02:22:45,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:45,131 INFO L93 Difference]: Finished difference Result 2345 states and 3036 transitions. [2024-11-22 02:22:45,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 02:22:45,132 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 states have internal predecessors, (113), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 292 [2024-11-22 02:22:45,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:45,139 INFO L225 Difference]: With dead ends: 2345 [2024-11-22 02:22:45,139 INFO L226 Difference]: Without dead ends: 1648 [2024-11-22 02:22:45,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-22 02:22:45,142 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 595 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:45,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2169 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 02:22:45,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2024-11-22 02:22:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1221. [2024-11-22 02:22:45,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1020 states have (on average 1.2754901960784313) internal successors, (1301), 1033 states have internal predecessors, (1301), 133 states have call successors, (133), 68 states have call predecessors, (133), 67 states have return successors, (132), 126 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-22 02:22:45,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1566 transitions. [2024-11-22 02:22:45,207 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1566 transitions. Word has length 292 [2024-11-22 02:22:45,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:45,208 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 1566 transitions. [2024-11-22 02:22:45,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 states have internal predecessors, (113), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 02:22:45,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1566 transitions. [2024-11-22 02:22:45,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-22 02:22:45,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:45,210 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:45,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-22 02:22:45,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-22 02:22:45,411 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:45,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:45,411 INFO L85 PathProgramCache]: Analyzing trace with hash 600167080, now seen corresponding path program 1 times [2024-11-22 02:22:45,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:45,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793320451] [2024-11-22 02:22:45,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:45,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:45,653 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 02:22:45,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:45,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793320451] [2024-11-22 02:22:45,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793320451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:45,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354724716] [2024-11-22 02:22:45,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:45,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:45,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:45,657 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:45,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 02:22:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:45,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 02:22:45,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2024-11-22 02:22:45,903 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:22:45,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354724716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:45,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:22:45,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2024-11-22 02:22:45,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96148056] [2024-11-22 02:22:45,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:45,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 02:22:45,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:45,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 02:22:45,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:22:45,906 INFO L87 Difference]: Start difference. First operand 1221 states and 1566 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 02:22:46,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:46,121 INFO L93 Difference]: Finished difference Result 2194 states and 2841 transitions. [2024-11-22 02:22:46,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 02:22:46,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 292 [2024-11-22 02:22:46,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:46,127 INFO L225 Difference]: With dead ends: 2194 [2024-11-22 02:22:46,128 INFO L226 Difference]: Without dead ends: 1318 [2024-11-22 02:22:46,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 02:22:46,131 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 120 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:46,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1853 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:22:46,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2024-11-22 02:22:46,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1199. [2024-11-22 02:22:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 1004 states have (on average 1.2709163346613546) internal successors, (1276), 1017 states have internal predecessors, (1276), 127 states have call successors, (127), 68 states have call predecessors, (127), 67 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-22 02:22:46,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1529 transitions. [2024-11-22 02:22:46,182 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1529 transitions. Word has length 292 [2024-11-22 02:22:46,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:46,182 INFO L471 AbstractCegarLoop]: Abstraction has 1199 states and 1529 transitions. [2024-11-22 02:22:46,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-22 02:22:46,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1529 transitions. [2024-11-22 02:22:46,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-22 02:22:46,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:46,185 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:46,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-22 02:22:46,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-22 02:22:46,387 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:46,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:46,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1957012249, now seen corresponding path program 1 times [2024-11-22 02:22:46,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:46,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356377955] [2024-11-22 02:22:46,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:46,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:46,487 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2024-11-22 02:22:46,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:46,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356377955] [2024-11-22 02:22:46,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356377955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:22:46,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:22:46,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:22:46,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143988171] [2024-11-22 02:22:46,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:22:46,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:22:46,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:46,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:22:46,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:22:46,490 INFO L87 Difference]: Start difference. First operand 1199 states and 1529 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 02:22:46,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:22:46,665 INFO L93 Difference]: Finished difference Result 1977 states and 2543 transitions. [2024-11-22 02:22:46,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:22:46,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 300 [2024-11-22 02:22:46,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:22:46,671 INFO L225 Difference]: With dead ends: 1977 [2024-11-22 02:22:46,671 INFO L226 Difference]: Without dead ends: 1135 [2024-11-22 02:22:46,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:22:46,673 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 436 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:22:46,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 859 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:22:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-22 02:22:46,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 898. [2024-11-22 02:22:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 767 states have (on average 1.2464146023468057) internal successors, (956), 770 states have internal predecessors, (956), 85 states have call successors, (85), 45 states have call predecessors, (85), 45 states have return successors, (85), 82 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-22 02:22:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1126 transitions. [2024-11-22 02:22:46,709 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1126 transitions. Word has length 300 [2024-11-22 02:22:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:22:46,710 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 1126 transitions. [2024-11-22 02:22:46,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-22 02:22:46,710 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1126 transitions. [2024-11-22 02:22:46,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-22 02:22:46,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:22:46,712 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:22:46,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-22 02:22:46,712 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:22:46,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:22:46,713 INFO L85 PathProgramCache]: Analyzing trace with hash 336941807, now seen corresponding path program 1 times [2024-11-22 02:22:46,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:22:46,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83400120] [2024-11-22 02:22:46,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:46,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:22:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:47,488 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2024-11-22 02:22:47,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:22:47,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83400120] [2024-11-22 02:22:47,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83400120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:22:47,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479443648] [2024-11-22 02:22:47,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:22:47,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:22:47,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:22:47,494 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:22:47,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 02:22:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:22:47,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-22 02:22:47,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:22:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 195 proven. 102 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-22 02:22:48,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:22:49,045 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 14 proven. 28 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2024-11-22 02:22:49,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479443648] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:22:49,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:22:49,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 18] total 34 [2024-11-22 02:22:49,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764488959] [2024-11-22 02:22:49,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:22:49,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-22 02:22:49,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:22:49,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-22 02:22:49,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 02:22:49,049 INFO L87 Difference]: Start difference. First operand 898 states and 1126 transitions. Second operand has 34 states, 33 states have (on average 8.272727272727273) internal successors, (273), 31 states have internal predecessors, (273), 14 states have call successors, (51), 8 states have call predecessors, (51), 10 states have return successors, (50), 15 states have call predecessors, (50), 13 states have call successors, (50) [2024-11-22 02:23:04,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:23:04,497 INFO L93 Difference]: Finished difference Result 13757 states and 18805 transitions. [2024-11-22 02:23:04,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 465 states. [2024-11-22 02:23:04,498 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 8.272727272727273) internal successors, (273), 31 states have internal predecessors, (273), 14 states have call successors, (51), 8 states have call predecessors, (51), 10 states have return successors, (50), 15 states have call predecessors, (50), 13 states have call successors, (50) Word has length 340 [2024-11-22 02:23:04,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:23:04,569 INFO L225 Difference]: With dead ends: 13757 [2024-11-22 02:23:04,569 INFO L226 Difference]: Without dead ends: 13224 [2024-11-22 02:23:04,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1209 GetRequests, 717 SyntacticMatches, 1 SemanticMatches, 491 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109549 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=13656, Invalid=228900, Unknown=0, NotChecked=0, Total=242556 [2024-11-22 02:23:04,598 INFO L432 NwaCegarLoop]: 988 mSDtfsCounter, 12450 mSDsluCounter, 15090 mSDsCounter, 0 mSdLazyCounter, 7335 mSolverCounterSat, 2759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12466 SdHoareTripleChecker+Valid, 16078 SdHoareTripleChecker+Invalid, 10094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2759 IncrementalHoareTripleChecker+Valid, 7335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-22 02:23:04,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12466 Valid, 16078 Invalid, 10094 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2759 Valid, 7335 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-22 02:23:04,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13224 states. [2024-11-22 02:23:04,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13224 to 2283. [2024-11-22 02:23:04,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 1943 states have (on average 1.2660833762223367) internal successors, (2460), 1955 states have internal predecessors, (2460), 226 states have call successors, (226), 113 states have call predecessors, (226), 113 states have return successors, (226), 214 states have call predecessors, (226), 226 states have call successors, (226) [2024-11-22 02:23:04,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 2912 transitions. [2024-11-22 02:23:04,839 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 2912 transitions. Word has length 340 [2024-11-22 02:23:04,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:23:04,840 INFO L471 AbstractCegarLoop]: Abstraction has 2283 states and 2912 transitions. [2024-11-22 02:23:04,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 8.272727272727273) internal successors, (273), 31 states have internal predecessors, (273), 14 states have call successors, (51), 8 states have call predecessors, (51), 10 states have return successors, (50), 15 states have call predecessors, (50), 13 states have call successors, (50) [2024-11-22 02:23:04,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 2912 transitions. [2024-11-22 02:23:04,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-22 02:23:04,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:23:04,845 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:23:04,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 02:23:05,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-22 02:23:05,051 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:23:05,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:23:05,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1208992398, now seen corresponding path program 1 times [2024-11-22 02:23:05,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:23:05,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739715412] [2024-11-22 02:23:05,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:05,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:23:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:06,109 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 16 proven. 23 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2024-11-22 02:23:06,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:23:06,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739715412] [2024-11-22 02:23:06,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739715412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:23:06,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391424628] [2024-11-22 02:23:06,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:06,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:23:06,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:23:06,111 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:23:06,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 02:23:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:06,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-22 02:23:06,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:23:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 195 proven. 100 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2024-11-22 02:23:07,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:23:07,829 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 14 proven. 25 refuted. 0 times theorem prover too weak. 833 trivial. 0 not checked. [2024-11-22 02:23:07,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391424628] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:23:07,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:23:07,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 18] total 38 [2024-11-22 02:23:07,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057374793] [2024-11-22 02:23:07,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:23:07,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-22 02:23:07,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:23:07,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-22 02:23:07,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1258, Unknown=0, NotChecked=0, Total=1406 [2024-11-22 02:23:07,835 INFO L87 Difference]: Start difference. First operand 2283 states and 2912 transitions. Second operand has 38 states, 37 states have (on average 8.72972972972973) internal successors, (323), 35 states have internal predecessors, (323), 17 states have call successors, (60), 8 states have call predecessors, (60), 10 states have return successors, (59), 18 states have call predecessors, (59), 16 states have call successors, (59) [2024-11-22 02:23:20,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:23:20,002 INFO L93 Difference]: Finished difference Result 21951 states and 29656 transitions. [2024-11-22 02:23:20,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 300 states. [2024-11-22 02:23:20,002 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 8.72972972972973) internal successors, (323), 35 states have internal predecessors, (323), 17 states have call successors, (60), 8 states have call predecessors, (60), 10 states have return successors, (59), 18 states have call predecessors, (59), 16 states have call successors, (59) Word has length 341 [2024-11-22 02:23:20,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:23:20,066 INFO L225 Difference]: With dead ends: 21951 [2024-11-22 02:23:20,066 INFO L226 Difference]: Without dead ends: 20168 [2024-11-22 02:23:20,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46659 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=8956, Invalid=101600, Unknown=0, NotChecked=0, Total=110556 [2024-11-22 02:23:20,086 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 4588 mSDsluCounter, 14391 mSDsCounter, 0 mSdLazyCounter, 8097 mSolverCounterSat, 989 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4588 SdHoareTripleChecker+Valid, 15189 SdHoareTripleChecker+Invalid, 9086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 989 IncrementalHoareTripleChecker+Valid, 8097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-22 02:23:20,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4588 Valid, 15189 Invalid, 9086 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [989 Valid, 8097 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-22 02:23:20,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20168 states. [2024-11-22 02:23:20,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20168 to 3481. [2024-11-22 02:23:20,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3481 states, 2981 states have (on average 1.2891647098289165) internal successors, (3843), 2997 states have internal predecessors, (3843), 317 states have call successors, (317), 182 states have call predecessors, (317), 182 states have return successors, (317), 301 states have call predecessors, (317), 317 states have call successors, (317) [2024-11-22 02:23:20,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 4477 transitions. [2024-11-22 02:23:20,643 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 4477 transitions. Word has length 341 [2024-11-22 02:23:20,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:23:20,643 INFO L471 AbstractCegarLoop]: Abstraction has 3481 states and 4477 transitions. [2024-11-22 02:23:20,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 8.72972972972973) internal successors, (323), 35 states have internal predecessors, (323), 17 states have call successors, (60), 8 states have call predecessors, (60), 10 states have return successors, (59), 18 states have call predecessors, (59), 16 states have call successors, (59) [2024-11-22 02:23:20,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 4477 transitions. [2024-11-22 02:23:20,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-22 02:23:20,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:23:20,653 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:23:20,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-22 02:23:20,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-22 02:23:20,854 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:23:20,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:23:20,855 INFO L85 PathProgramCache]: Analyzing trace with hash 202609910, now seen corresponding path program 1 times [2024-11-22 02:23:20,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:23:20,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107008134] [2024-11-22 02:23:20,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:20,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:23:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 33 proven. 69 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2024-11-22 02:23:22,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:23:22,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107008134] [2024-11-22 02:23:22,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107008134] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:23:22,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076107254] [2024-11-22 02:23:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:22,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:23:22,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:23:22,040 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:23:22,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 02:23:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:22,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 1305 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-22 02:23:22,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:23:22,603 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 190 proven. 102 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-11-22 02:23:22,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:23:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 33 proven. 69 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2024-11-22 02:23:23,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076107254] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:23:23,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:23:23,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 33 [2024-11-22 02:23:23,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989385505] [2024-11-22 02:23:23,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:23:23,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-22 02:23:23,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:23:23,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-22 02:23:23,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2024-11-22 02:23:23,157 INFO L87 Difference]: Start difference. First operand 3481 states and 4477 transitions. Second operand has 33 states, 33 states have (on average 7.424242424242424) internal successors, (245), 27 states have internal predecessors, (245), 7 states have call successors, (41), 8 states have call predecessors, (41), 16 states have return successors, (45), 12 states have call predecessors, (45), 6 states have call successors, (45) [2024-11-22 02:23:28,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:23:28,111 INFO L93 Difference]: Finished difference Result 12987 states and 17042 transitions. [2024-11-22 02:23:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-22 02:23:28,112 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 7.424242424242424) internal successors, (245), 27 states have internal predecessors, (245), 7 states have call successors, (41), 8 states have call predecessors, (41), 16 states have return successors, (45), 12 states have call predecessors, (45), 6 states have call successors, (45) Word has length 342 [2024-11-22 02:23:28,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:23:28,147 INFO L225 Difference]: With dead ends: 12987 [2024-11-22 02:23:28,147 INFO L226 Difference]: Without dead ends: 10222 [2024-11-22 02:23:28,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 753 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=983, Invalid=4869, Unknown=0, NotChecked=0, Total=5852 [2024-11-22 02:23:28,157 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 1688 mSDsluCounter, 9783 mSDsCounter, 0 mSdLazyCounter, 5686 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 10433 SdHoareTripleChecker+Invalid, 6265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 5686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:23:28,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 10433 Invalid, 6265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 5686 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-22 02:23:28,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10222 states. [2024-11-22 02:23:28,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10222 to 4548. [2024-11-22 02:23:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 3841 states have (on average 1.2803957302785733) internal successors, (4918), 3866 states have internal predecessors, (4918), 454 states have call successors, (454), 247 states have call predecessors, (454), 252 states have return successors, (464), 434 states have call predecessors, (464), 454 states have call successors, (464) [2024-11-22 02:23:28,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 5836 transitions. [2024-11-22 02:23:28,937 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 5836 transitions. Word has length 342 [2024-11-22 02:23:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:23:28,938 INFO L471 AbstractCegarLoop]: Abstraction has 4548 states and 5836 transitions. [2024-11-22 02:23:28,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 7.424242424242424) internal successors, (245), 27 states have internal predecessors, (245), 7 states have call successors, (41), 8 states have call predecessors, (41), 16 states have return successors, (45), 12 states have call predecessors, (45), 6 states have call successors, (45) [2024-11-22 02:23:28,938 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 5836 transitions. [2024-11-22 02:23:28,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-22 02:23:28,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:23:28,948 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:23:28,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-22 02:23:29,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-22 02:23:29,148 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:23:29,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:23:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash 6096405, now seen corresponding path program 1 times [2024-11-22 02:23:29,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:23:29,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51545848] [2024-11-22 02:23:29,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:29,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:23:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:29,273 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2024-11-22 02:23:29,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:23:29,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51545848] [2024-11-22 02:23:29,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51545848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:23:29,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:23:29,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:23:29,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478822197] [2024-11-22 02:23:29,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:23:29,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:23:29,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:23:29,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:23:29,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:23:29,275 INFO L87 Difference]: Start difference. First operand 4548 states and 5836 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 02:23:29,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:23:29,726 INFO L93 Difference]: Finished difference Result 9249 states and 11855 transitions. [2024-11-22 02:23:29,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:23:29,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 342 [2024-11-22 02:23:29,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:23:29,740 INFO L225 Difference]: With dead ends: 9249 [2024-11-22 02:23:29,740 INFO L226 Difference]: Without dead ends: 4528 [2024-11-22 02:23:29,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:23:29,749 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 26 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:23:29,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 649 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:23:29,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2024-11-22 02:23:30,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 4528. [2024-11-22 02:23:30,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 3826 states have (on average 1.255880815473079) internal successors, (4805), 3851 states have internal predecessors, (4805), 454 states have call successors, (454), 247 states have call predecessors, (454), 247 states have return successors, (454), 429 states have call predecessors, (454), 454 states have call successors, (454) [2024-11-22 02:23:30,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 5713 transitions. [2024-11-22 02:23:30,231 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 5713 transitions. Word has length 342 [2024-11-22 02:23:30,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:23:30,231 INFO L471 AbstractCegarLoop]: Abstraction has 4528 states and 5713 transitions. [2024-11-22 02:23:30,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-22 02:23:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 5713 transitions. [2024-11-22 02:23:30,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-22 02:23:30,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:23:30,245 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:23:30,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-22 02:23:30,245 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:23:30,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:23:30,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1859134570, now seen corresponding path program 1 times [2024-11-22 02:23:30,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:23:30,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533652317] [2024-11-22 02:23:30,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:30,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:23:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2024-11-22 02:23:30,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:23:30,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533652317] [2024-11-22 02:23:30,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533652317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:23:30,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:23:30,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:23:30,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139880234] [2024-11-22 02:23:30,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:23:30,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:23:30,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:23:30,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:23:30,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:23:30,421 INFO L87 Difference]: Start difference. First operand 4528 states and 5713 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 02:23:30,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:23:30,735 INFO L93 Difference]: Finished difference Result 6930 states and 8775 transitions. [2024-11-22 02:23:30,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:23:30,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 342 [2024-11-22 02:23:30,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:23:30,745 INFO L225 Difference]: With dead ends: 6930 [2024-11-22 02:23:30,745 INFO L226 Difference]: Without dead ends: 2886 [2024-11-22 02:23:30,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:23:30,753 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 0 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:23:30,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 471 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:23:30,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2024-11-22 02:23:31,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2024-11-22 02:23:31,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2426 states have (on average 1.2452596867271228) internal successors, (3021), 2442 states have internal predecessors, (3021), 297 states have call successors, (297), 162 states have call predecessors, (297), 162 states have return successors, (297), 281 states have call predecessors, (297), 297 states have call successors, (297) [2024-11-22 02:23:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3615 transitions. [2024-11-22 02:23:31,019 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3615 transitions. Word has length 342 [2024-11-22 02:23:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:23:31,020 INFO L471 AbstractCegarLoop]: Abstraction has 2886 states and 3615 transitions. [2024-11-22 02:23:31,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 02:23:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3615 transitions. [2024-11-22 02:23:31,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-22 02:23:31,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:23:31,026 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:23:31,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-22 02:23:31,026 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:23:31,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:23:31,027 INFO L85 PathProgramCache]: Analyzing trace with hash -917418757, now seen corresponding path program 1 times [2024-11-22 02:23:31,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:23:31,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786951689] [2024-11-22 02:23:31,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:31,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:23:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:31,962 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 56 proven. 52 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2024-11-22 02:23:31,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:23:31,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786951689] [2024-11-22 02:23:31,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786951689] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:23:31,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890037801] [2024-11-22 02:23:31,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:31,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:23:31,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:23:31,964 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:23:31,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 02:23:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:32,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-22 02:23:32,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:23:32,476 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 258 proven. 89 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-11-22 02:23:32,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:23:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 56 proven. 52 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2024-11-22 02:23:33,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890037801] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:23:33,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:23:33,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 33 [2024-11-22 02:23:33,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774610674] [2024-11-22 02:23:33,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:23:33,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-22 02:23:33,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:23:33,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-22 02:23:33,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2024-11-22 02:23:33,035 INFO L87 Difference]: Start difference. First operand 2886 states and 3615 transitions. Second operand has 33 states, 33 states have (on average 7.9393939393939394) internal successors, (262), 27 states have internal predecessors, (262), 7 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (49), 12 states have call predecessors, (49), 6 states have call successors, (49) [2024-11-22 02:23:37,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:23:37,401 INFO L93 Difference]: Finished difference Result 11296 states and 14452 transitions. [2024-11-22 02:23:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-22 02:23:37,405 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 7.9393939393939394) internal successors, (262), 27 states have internal predecessors, (262), 7 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (49), 12 states have call predecessors, (49), 6 states have call successors, (49) Word has length 352 [2024-11-22 02:23:37,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:23:37,515 INFO L225 Difference]: With dead ends: 11296 [2024-11-22 02:23:37,515 INFO L226 Difference]: Without dead ends: 9025 [2024-11-22 02:23:37,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 715 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=970, Invalid=4730, Unknown=0, NotChecked=0, Total=5700 [2024-11-22 02:23:37,523 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 2040 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 4647 mSolverCounterSat, 659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 9282 SdHoareTripleChecker+Invalid, 5306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 4647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:23:37,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 9282 Invalid, 5306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [659 Valid, 4647 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-22 02:23:37,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9025 states. [2024-11-22 02:23:37,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9025 to 3832. [2024-11-22 02:23:37,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 3178 states have (on average 1.2331655129011958) internal successors, (3919), 3203 states have internal predecessors, (3919), 430 states have call successors, (430), 223 states have call predecessors, (430), 223 states have return successors, (430), 405 states have call predecessors, (430), 430 states have call successors, (430) [2024-11-22 02:23:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 4779 transitions. [2024-11-22 02:23:38,004 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 4779 transitions. Word has length 352 [2024-11-22 02:23:38,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:23:38,004 INFO L471 AbstractCegarLoop]: Abstraction has 3832 states and 4779 transitions. [2024-11-22 02:23:38,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 7.9393939393939394) internal successors, (262), 27 states have internal predecessors, (262), 7 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (49), 12 states have call predecessors, (49), 6 states have call successors, (49) [2024-11-22 02:23:38,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 4779 transitions. [2024-11-22 02:23:38,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-22 02:23:38,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:23:38,014 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:23:38,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-22 02:23:38,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:23:38,217 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:23:38,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:23:38,217 INFO L85 PathProgramCache]: Analyzing trace with hash -2018349588, now seen corresponding path program 1 times [2024-11-22 02:23:38,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:23:38,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731720383] [2024-11-22 02:23:38,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:38,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:23:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2024-11-22 02:23:38,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:23:38,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731720383] [2024-11-22 02:23:38,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731720383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:23:38,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:23:38,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:23:38,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42787513] [2024-11-22 02:23:38,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:23:38,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:23:38,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:23:38,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:23:38,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:23:38,404 INFO L87 Difference]: Start difference. First operand 3832 states and 4779 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 02:23:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:23:38,687 INFO L93 Difference]: Finished difference Result 5917 states and 7406 transitions. [2024-11-22 02:23:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:23:38,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 353 [2024-11-22 02:23:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:23:38,697 INFO L225 Difference]: With dead ends: 5917 [2024-11-22 02:23:38,697 INFO L226 Difference]: Without dead ends: 2506 [2024-11-22 02:23:38,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:23:38,703 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:23:38,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:23:38,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2024-11-22 02:23:39,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2506. [2024-11-22 02:23:39,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 2066 states have (on average 1.223136495643756) internal successors, (2527), 2082 states have internal predecessors, (2527), 287 states have call successors, (287), 152 states have call predecessors, (287), 152 states have return successors, (287), 271 states have call predecessors, (287), 287 states have call successors, (287) [2024-11-22 02:23:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 3101 transitions. [2024-11-22 02:23:39,038 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 3101 transitions. Word has length 353 [2024-11-22 02:23:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:23:39,038 INFO L471 AbstractCegarLoop]: Abstraction has 2506 states and 3101 transitions. [2024-11-22 02:23:39,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 02:23:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 3101 transitions. [2024-11-22 02:23:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-22 02:23:39,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:23:39,045 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 9, 8, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:23:39,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-22 02:23:39,045 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:23:39,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:23:39,046 INFO L85 PathProgramCache]: Analyzing trace with hash 538336336, now seen corresponding path program 1 times [2024-11-22 02:23:39,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:23:39,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753755022] [2024-11-22 02:23:39,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:39,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:23:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 907 trivial. 0 not checked. [2024-11-22 02:23:39,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:23:39,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753755022] [2024-11-22 02:23:39,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753755022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:23:39,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406763273] [2024-11-22 02:23:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:39,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:23:39,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:23:39,261 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:23:39,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 02:23:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:39,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 02:23:39,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:23:39,917 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 127 proven. 204 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2024-11-22 02:23:39,917 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:23:40,213 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 17 proven. 31 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2024-11-22 02:23:40,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406763273] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:23:40,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:23:40,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 12] total 19 [2024-11-22 02:23:40,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548614522] [2024-11-22 02:23:40,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:23:40,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 02:23:40,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:23:40,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 02:23:40,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2024-11-22 02:23:40,215 INFO L87 Difference]: Start difference. First operand 2506 states and 3101 transitions. Second operand has 19 states, 19 states have (on average 14.157894736842104) internal successors, (269), 17 states have internal predecessors, (269), 7 states have call successors, (65), 6 states have call predecessors, (65), 9 states have return successors, (64), 9 states have call predecessors, (64), 7 states have call successors, (64) [2024-11-22 02:23:42,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:23:42,949 INFO L93 Difference]: Finished difference Result 9657 states and 12067 transitions. [2024-11-22 02:23:42,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-22 02:23:42,951 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 14.157894736842104) internal successors, (269), 17 states have internal predecessors, (269), 7 states have call successors, (65), 6 states have call predecessors, (65), 9 states have return successors, (64), 9 states have call predecessors, (64), 7 states have call successors, (64) Word has length 358 [2024-11-22 02:23:42,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:23:42,971 INFO L225 Difference]: With dead ends: 9657 [2024-11-22 02:23:42,971 INFO L226 Difference]: Without dead ends: 7702 [2024-11-22 02:23:42,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 802 GetRequests, 712 SyntacticMatches, 9 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1986 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=666, Invalid=6140, Unknown=0, NotChecked=0, Total=6806 [2024-11-22 02:23:42,978 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 1560 mSDsluCounter, 6230 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 6726 SdHoareTripleChecker+Invalid, 2466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:23:42,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 6726 Invalid, 2466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 02:23:42,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7702 states. [2024-11-22 02:23:43,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7702 to 4399. [2024-11-22 02:23:43,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4399 states, 3631 states have (on average 1.2285871660699532) internal successors, (4461), 3659 states have internal predecessors, (4461), 503 states have call successors, (503), 264 states have call predecessors, (503), 264 states have return successors, (503), 475 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-22 02:23:43,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4399 states to 4399 states and 5467 transitions. [2024-11-22 02:23:43,610 INFO L78 Accepts]: Start accepts. Automaton has 4399 states and 5467 transitions. Word has length 358 [2024-11-22 02:23:43,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:23:43,611 INFO L471 AbstractCegarLoop]: Abstraction has 4399 states and 5467 transitions. [2024-11-22 02:23:43,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.157894736842104) internal successors, (269), 17 states have internal predecessors, (269), 7 states have call successors, (65), 6 states have call predecessors, (65), 9 states have return successors, (64), 9 states have call predecessors, (64), 7 states have call successors, (64) [2024-11-22 02:23:43,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4399 states and 5467 transitions. [2024-11-22 02:23:43,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-22 02:23:43,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:23:43,616 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:23:43,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-22 02:23:43,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:23:43,817 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:23:43,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:23:43,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2102268069, now seen corresponding path program 1 times [2024-11-22 02:23:43,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:23:43,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337974061] [2024-11-22 02:23:43,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:43,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:23:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:45,135 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 42 proven. 201 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2024-11-22 02:23:45,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:23:45,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337974061] [2024-11-22 02:23:45,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337974061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:23:45,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090216435] [2024-11-22 02:23:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:45,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:23:45,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:23:45,140 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:23:45,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-22 02:23:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:45,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-22 02:23:45,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:23:45,881 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 412 proven. 200 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2024-11-22 02:23:45,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:23:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 46 proven. 197 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2024-11-22 02:23:46,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090216435] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:23:46,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:23:46,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 19] total 45 [2024-11-22 02:23:46,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348427176] [2024-11-22 02:23:46,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:23:46,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-22 02:23:46,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:23:46,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-22 02:23:46,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1782, Unknown=0, NotChecked=0, Total=1980 [2024-11-22 02:23:46,771 INFO L87 Difference]: Start difference. First operand 4399 states and 5467 transitions. Second operand has 45 states, 43 states have (on average 7.3023255813953485) internal successors, (314), 38 states have internal predecessors, (314), 15 states have call successors, (54), 10 states have call predecessors, (54), 17 states have return successors, (57), 17 states have call predecessors, (57), 14 states have call successors, (57) [2024-11-22 02:23:49,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:23:49,738 INFO L93 Difference]: Finished difference Result 10168 states and 12927 transitions. [2024-11-22 02:23:49,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-22 02:23:49,739 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 7.3023255813953485) internal successors, (314), 38 states have internal predecessors, (314), 15 states have call successors, (54), 10 states have call predecessors, (54), 17 states have return successors, (57), 17 states have call predecessors, (57), 14 states have call successors, (57) Word has length 363 [2024-11-22 02:23:49,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:23:49,757 INFO L225 Difference]: With dead ends: 10168 [2024-11-22 02:23:49,757 INFO L226 Difference]: Without dead ends: 6248 [2024-11-22 02:23:49,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1116 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=639, Invalid=4763, Unknown=0, NotChecked=0, Total=5402 [2024-11-22 02:23:49,767 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 1432 mSDsluCounter, 5601 mSDsCounter, 0 mSdLazyCounter, 3728 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 5828 SdHoareTripleChecker+Invalid, 4223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 3728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:23:49,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 5828 Invalid, 4223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 3728 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 02:23:49,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6248 states. [2024-11-22 02:23:50,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6248 to 4745. [2024-11-22 02:23:50,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4745 states, 3931 states have (on average 1.2203001780717375) internal successors, (4797), 3959 states have internal predecessors, (4797), 528 states have call successors, (528), 283 states have call predecessors, (528), 285 states have return successors, (532), 502 states have call predecessors, (532), 528 states have call successors, (532) [2024-11-22 02:23:50,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4745 states to 4745 states and 5857 transitions. [2024-11-22 02:23:50,444 INFO L78 Accepts]: Start accepts. Automaton has 4745 states and 5857 transitions. Word has length 363 [2024-11-22 02:23:50,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:23:50,445 INFO L471 AbstractCegarLoop]: Abstraction has 4745 states and 5857 transitions. [2024-11-22 02:23:50,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 7.3023255813953485) internal successors, (314), 38 states have internal predecessors, (314), 15 states have call successors, (54), 10 states have call predecessors, (54), 17 states have return successors, (57), 17 states have call predecessors, (57), 14 states have call successors, (57) [2024-11-22 02:23:50,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4745 states and 5857 transitions. [2024-11-22 02:23:50,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-22 02:23:50,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:23:50,452 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:23:50,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-22 02:23:50,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-22 02:23:50,657 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:23:50,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:23:50,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1690985373, now seen corresponding path program 1 times [2024-11-22 02:23:50,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:23:50,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595572289] [2024-11-22 02:23:50,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:50,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:23:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:50,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 9 proven. 139 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked. [2024-11-22 02:23:50,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:23:50,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595572289] [2024-11-22 02:23:50,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595572289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:23:50,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301507959] [2024-11-22 02:23:50,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:23:50,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:23:50,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:23:50,778 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:23:50,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-22 02:23:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:23:51,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 02:23:51,019 INFO L278 TraceCheckSpWp]: Computing forward predicates...