./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i -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 68585835b92043bfb2f3c62590e96ff685993869f8a251aecd9fe4c8aaea0e1e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-13 21:54:35,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 21:54:35,182 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 21:54:35,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 21:54:35,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 21:54:35,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 21:54:35,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 21:54:35,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 21:54:35,228 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 21:54:35,229 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 21:54:35,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 21:54:35,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 21:54:35,230 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 21:54:35,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 21:54:35,231 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 21:54:35,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 21:54:35,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 21:54:35,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 21:54:35,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 21:54:35,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 21:54:35,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 21:54:35,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 21:54:35,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 21:54:35,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 21:54:35,239 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 21:54:35,239 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 21:54:35,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 21:54:35,240 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 21:54:35,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 21:54:35,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 21:54:35,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 21:54:35,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 21:54:35,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 21:54:35,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 21:54:35,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 21:54:35,241 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 21:54:35,242 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 21:54:35,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 21:54:35,242 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 21:54:35,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 21:54:35,243 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 21:54:35,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 21:54:35,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68585835b92043bfb2f3c62590e96ff685993869f8a251aecd9fe4c8aaea0e1e [2024-10-13 21:54:35,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 21:54:35,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 21:54:35,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 21:54:35,534 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 21:54:35,535 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 21:54:35,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i [2024-10-13 21:54:36,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 21:54:37,181 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 21:54:37,182 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i [2024-10-13 21:54:37,196 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb3b41a23/ee994d51039c4ff6927dac5ead4473a9/FLAG3f7586d66 [2024-10-13 21:54:37,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb3b41a23/ee994d51039c4ff6927dac5ead4473a9 [2024-10-13 21:54:37,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 21:54:37,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 21:54:37,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 21:54:37,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 21:54:37,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 21:54:37,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152e353f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37, skipping insertion in model container [2024-10-13 21:54:37,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,558 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 21:54:37,695 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i[820,833] [2024-10-13 21:54:37,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 21:54:37,722 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 21:54:37,734 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i[820,833] [2024-10-13 21:54:37,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 21:54:37,758 INFO L204 MainTranslator]: Completed translation [2024-10-13 21:54:37,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37 WrapperNode [2024-10-13 21:54:37,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 21:54:37,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 21:54:37,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 21:54:37,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 21:54:37,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,793 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2024-10-13 21:54:37,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 21:54:37,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 21:54:37,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 21:54:37,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 21:54:37,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,806 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,818 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-10-13 21:54:37,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 21:54:37,838 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 21:54:37,838 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 21:54:37,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 21:54:37,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (1/1) ... [2024-10-13 21:54:37,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 21:54:37,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:37,863 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) [2024-10-13 21:54:37,866 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 [2024-10-13 21:54:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 21:54:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 21:54:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 21:54:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 21:54:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 21:54:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 21:54:37,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 21:54:37,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 21:54:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 21:54:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 21:54:37,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 21:54:37,971 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 21:54:37,972 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 21:54:38,104 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-13 21:54:38,104 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 21:54:38,133 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 21:54:38,133 INFO L314 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-13 21:54:38,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:54:38 BoogieIcfgContainer [2024-10-13 21:54:38,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 21:54:38,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 21:54:38,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 21:54:38,139 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 21:54:38,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:54:37" (1/3) ... [2024-10-13 21:54:38,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285d1089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:54:38, skipping insertion in model container [2024-10-13 21:54:38,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:37" (2/3) ... [2024-10-13 21:54:38,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285d1089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:54:38, skipping insertion in model container [2024-10-13 21:54:38,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:54:38" (3/3) ... [2024-10-13 21:54:38,141 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_bubblesort_ground-1.i [2024-10-13 21:54:38,155 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 21:54:38,155 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 21:54:38,216 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 21:54:38,223 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;@27b3445a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 21:54:38,223 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 21:54:38,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.8125) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:38,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-13 21:54:38,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:38,238 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:38,238 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:38,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:38,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1612111142, now seen corresponding path program 1 times [2024-10-13 21:54:38,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:38,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014738211] [2024-10-13 21:54:38,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:38,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:38,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 21:54:38,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:38,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014738211] [2024-10-13 21:54:38,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014738211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 21:54:38,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 21:54:38,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 21:54:38,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979894292] [2024-10-13 21:54:38,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 21:54:38,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 21:54:38,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:38,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 21:54:38,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 21:54:38,453 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.8125) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:38,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:38,480 INFO L93 Difference]: Finished difference Result 35 states and 57 transitions. [2024-10-13 21:54:38,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 21:54:38,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-13 21:54:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:38,514 INFO L225 Difference]: With dead ends: 35 [2024-10-13 21:54:38,516 INFO L226 Difference]: Without dead ends: 17 [2024-10-13 21:54:38,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 21:54:38,523 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:38,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 21:54:38,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-13 21:54:38,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-13 21:54:38,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:38,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2024-10-13 21:54:38,587 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 9 [2024-10-13 21:54:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:38,588 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-10-13 21:54:38,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:38,588 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2024-10-13 21:54:38,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-13 21:54:38,589 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:38,589 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:38,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 21:54:38,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:38,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:38,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1371244853, now seen corresponding path program 1 times [2024-10-13 21:54:38,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:38,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002401760] [2024-10-13 21:54:38,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:38,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 21:54:38,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:38,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002401760] [2024-10-13 21:54:38,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002401760] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:38,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964254631] [2024-10-13 21:54:38,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:38,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:38,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:38,742 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) [2024-10-13 21:54:38,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 21:54:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:38,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 21:54:38,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:38,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 21:54:38,843 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 21:54:38,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964254631] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 21:54:38,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 21:54:38,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-10-13 21:54:38,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477450357] [2024-10-13 21:54:38,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 21:54:38,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 21:54:38,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:38,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 21:54:38,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 21:54:38,846 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:38,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:38,869 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2024-10-13 21:54:38,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 21:54:38,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-13 21:54:38,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:38,871 INFO L225 Difference]: With dead ends: 30 [2024-10-13 21:54:38,871 INFO L226 Difference]: Without dead ends: 22 [2024-10-13 21:54:38,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 21:54:38,873 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:38,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 36 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 21:54:38,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-10-13 21:54:38,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-10-13 21:54:38,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.380952380952381) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2024-10-13 21:54:38,882 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 10 [2024-10-13 21:54:38,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:38,883 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2024-10-13 21:54:38,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:38,883 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-10-13 21:54:38,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-13 21:54:38,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:38,884 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:38,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 21:54:39,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:39,089 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:39,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:39,089 INFO L85 PathProgramCache]: Analyzing trace with hash 810154115, now seen corresponding path program 1 times [2024-10-13 21:54:39,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:39,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833278998] [2024-10-13 21:54:39,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:39,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:39,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 21:54:39,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:39,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833278998] [2024-10-13 21:54:39,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833278998] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:39,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809921559] [2024-10-13 21:54:39,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:39,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:39,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:39,169 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) [2024-10-13 21:54:39,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 21:54:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:39,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 21:54:39,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 21:54:39,238 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 21:54:39,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809921559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 21:54:39,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 21:54:39,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-10-13 21:54:39,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874035889] [2024-10-13 21:54:39,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 21:54:39,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 21:54:39,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:39,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 21:54:39,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 21:54:39,240 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:39,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:39,272 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2024-10-13 21:54:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 21:54:39,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-13 21:54:39,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:39,274 INFO L225 Difference]: With dead ends: 44 [2024-10-13 21:54:39,274 INFO L226 Difference]: Without dead ends: 26 [2024-10-13 21:54:39,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 21:54:39,276 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:39,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 27 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 21:54:39,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-13 21:54:39,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2024-10-13 21:54:39,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:39,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2024-10-13 21:54:39,286 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 13 [2024-10-13 21:54:39,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:39,287 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-10-13 21:54:39,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:39,288 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-10-13 21:54:39,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-13 21:54:39,288 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:39,288 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:39,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 21:54:39,492 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,SelfDestructingSolverStorable2 [2024-10-13 21:54:39,493 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:39,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:39,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1552667997, now seen corresponding path program 1 times [2024-10-13 21:54:39,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:39,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165856939] [2024-10-13 21:54:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:39,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 21:54:39,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:39,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165856939] [2024-10-13 21:54:39,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165856939] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:39,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222091531] [2024-10-13 21:54:39,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:39,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:39,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:39,602 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) [2024-10-13 21:54:39,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 21:54:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:39,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 21:54:39,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:39,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 21:54:39,705 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:54:39,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 21:54:39,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222091531] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:54:39,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:54:39,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-13 21:54:39,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472264321] [2024-10-13 21:54:39,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:54:39,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 21:54:39,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:39,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 21:54:39,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 21:54:39,738 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:39,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:39,763 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2024-10-13 21:54:39,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 21:54:39,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-13 21:54:39,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:39,764 INFO L225 Difference]: With dead ends: 46 [2024-10-13 21:54:39,764 INFO L226 Difference]: Without dead ends: 26 [2024-10-13 21:54:39,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-13 21:54:39,765 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:39,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 21:54:39,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-13 21:54:39,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-10-13 21:54:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:39,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-10-13 21:54:39,775 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 16 [2024-10-13 21:54:39,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:39,775 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-10-13 21:54:39,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:39,776 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-10-13 21:54:39,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-13 21:54:39,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:39,777 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:39,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 21:54:39,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:39,981 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:39,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:39,981 INFO L85 PathProgramCache]: Analyzing trace with hash -190909954, now seen corresponding path program 2 times [2024-10-13 21:54:39,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:39,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313477267] [2024-10-13 21:54:39,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:39,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:40,083 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 21:54:40,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:40,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313477267] [2024-10-13 21:54:40,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313477267] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:40,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664122986] [2024-10-13 21:54:40,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 21:54:40,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:40,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:40,086 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) [2024-10-13 21:54:40,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 21:54:40,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 21:54:40,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 21:54:40,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 21:54:40,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:40,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 21:54:40,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:54:40,269 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 21:54:40,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664122986] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:54:40,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:54:40,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-10-13 21:54:40,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831223239] [2024-10-13 21:54:40,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:54:40,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 21:54:40,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:40,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 21:54:40,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-10-13 21:54:40,274 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:40,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:40,329 INFO L93 Difference]: Finished difference Result 61 states and 85 transitions. [2024-10-13 21:54:40,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 21:54:40,329 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-13 21:54:40,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:40,330 INFO L225 Difference]: With dead ends: 61 [2024-10-13 21:54:40,330 INFO L226 Difference]: Without dead ends: 41 [2024-10-13 21:54:40,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-10-13 21:54:40,332 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:40,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 65 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 21:54:40,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-13 21:54:40,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2024-10-13 21:54:40,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.25) internal successors, (45), 36 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:40,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2024-10-13 21:54:40,341 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 19 [2024-10-13 21:54:40,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:40,342 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2024-10-13 21:54:40,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2024-10-13 21:54:40,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-13 21:54:40,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:40,343 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:40,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 21:54:40,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:40,548 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:40,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:40,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1522098536, now seen corresponding path program 3 times [2024-10-13 21:54:40,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:40,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201262794] [2024-10-13 21:54:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:40,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:40,713 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-13 21:54:40,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:40,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201262794] [2024-10-13 21:54:40,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201262794] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:40,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414131034] [2024-10-13 21:54:40,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 21:54:40,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:40,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:40,715 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) [2024-10-13 21:54:40,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 21:54:40,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-13 21:54:40,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 21:54:40,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 21:54:40,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-13 21:54:40,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:54:40,895 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-13 21:54:40,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414131034] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:54:40,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:54:40,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-13 21:54:40,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347720910] [2024-10-13 21:54:40,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:54:40,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 21:54:40,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:40,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 21:54:40,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-13 21:54:40,902 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:40,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:40,956 INFO L93 Difference]: Finished difference Result 85 states and 116 transitions. [2024-10-13 21:54:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 21:54:40,957 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-10-13 21:54:40,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:40,958 INFO L225 Difference]: With dead ends: 85 [2024-10-13 21:54:40,958 INFO L226 Difference]: Without dead ends: 61 [2024-10-13 21:54:40,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-13 21:54:40,959 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:40,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 43 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 21:54:40,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-13 21:54:40,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-10-13 21:54:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 60 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:40,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2024-10-13 21:54:40,968 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 28 [2024-10-13 21:54:40,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:40,968 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2024-10-13 21:54:40,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2024-10-13 21:54:40,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-13 21:54:40,970 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:40,970 INFO L215 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:40,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 21:54:41,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:41,171 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:41,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash -302265880, now seen corresponding path program 4 times [2024-10-13 21:54:41,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:41,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354009740] [2024-10-13 21:54:41,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:41,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:41,468 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-13 21:54:41,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:41,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354009740] [2024-10-13 21:54:41,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354009740] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:41,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219797159] [2024-10-13 21:54:41,470 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 21:54:41,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:41,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:41,472 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) [2024-10-13 21:54:41,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 21:54:41,560 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 21:54:41,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 21:54:41,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 21:54:41,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:41,687 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 51 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-13 21:54:41,687 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:54:41,875 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 51 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-13 21:54:41,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219797159] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:54:41,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:54:41,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-10-13 21:54:41,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544408594] [2024-10-13 21:54:41,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:54:41,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-13 21:54:41,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:41,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-13 21:54:41,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2024-10-13 21:54:41,881 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:42,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:42,004 INFO L93 Difference]: Finished difference Result 159 states and 223 transitions. [2024-10-13 21:54:42,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-13 21:54:42,005 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-10-13 21:54:42,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:42,006 INFO L225 Difference]: With dead ends: 159 [2024-10-13 21:54:42,006 INFO L226 Difference]: Without dead ends: 110 [2024-10-13 21:54:42,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2024-10-13 21:54:42,007 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 35 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:42,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 85 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 21:54:42,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-13 21:54:42,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-10-13 21:54:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 109 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:42,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 142 transitions. [2024-10-13 21:54:42,025 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 142 transitions. Word has length 40 [2024-10-13 21:54:42,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:42,025 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 142 transitions. [2024-10-13 21:54:42,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:42,028 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 142 transitions. [2024-10-13 21:54:42,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-13 21:54:42,029 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:42,029 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:42,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 21:54:42,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:42,230 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:42,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:42,231 INFO L85 PathProgramCache]: Analyzing trace with hash 299109283, now seen corresponding path program 5 times [2024-10-13 21:54:42,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:42,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740561846] [2024-10-13 21:54:42,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:42,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:42,562 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-10-13 21:54:42,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:42,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740561846] [2024-10-13 21:54:42,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740561846] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:42,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470381391] [2024-10-13 21:54:42,563 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 21:54:42,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:42,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:42,565 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) [2024-10-13 21:54:42,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 21:54:42,694 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2024-10-13 21:54:42,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 21:54:42,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 21:54:42,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:42,995 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 1 proven. 287 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-13 21:54:42,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:54:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 1 proven. 287 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-13 21:54:43,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470381391] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:54:43,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:54:43,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 17] total 44 [2024-10-13 21:54:43,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155688235] [2024-10-13 21:54:43,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:54:43,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-10-13 21:54:43,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:43,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-10-13 21:54:43,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=1306, Unknown=0, NotChecked=0, Total=1892 [2024-10-13 21:54:43,490 INFO L87 Difference]: Start difference. First operand 110 states and 142 transitions. Second operand has 44 states, 44 states have (on average 2.6818181818181817) internal successors, (118), 44 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:43,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:43,682 INFO L93 Difference]: Finished difference Result 304 states and 432 transitions. [2024-10-13 21:54:43,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-13 21:54:43,683 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.6818181818181817) internal successors, (118), 44 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-13 21:54:43,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:43,684 INFO L225 Difference]: With dead ends: 304 [2024-10-13 21:54:43,685 INFO L226 Difference]: Without dead ends: 207 [2024-10-13 21:54:43,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=586, Invalid=1306, Unknown=0, NotChecked=0, Total=1892 [2024-10-13 21:54:43,689 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 87 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:43,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 175 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 21:54:43,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-10-13 21:54:43,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-10-13 21:54:43,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.3155339805825244) internal successors, (271), 206 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 271 transitions. [2024-10-13 21:54:43,715 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 271 transitions. Word has length 65 [2024-10-13 21:54:43,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:43,715 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 271 transitions. [2024-10-13 21:54:43,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.6818181818181817) internal successors, (118), 44 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 271 transitions. [2024-10-13 21:54:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-13 21:54:43,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:43,718 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:43,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-13 21:54:43,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:43,919 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:43,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:43,920 INFO L85 PathProgramCache]: Analyzing trace with hash -683125688, now seen corresponding path program 6 times [2024-10-13 21:54:43,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:43,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195787634] [2024-10-13 21:54:43,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:43,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2024-10-13 21:54:44,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:44,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195787634] [2024-10-13 21:54:44,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195787634] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:44,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593125891] [2024-10-13 21:54:44,295 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-13 21:54:44,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:44,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:44,297 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) [2024-10-13 21:54:44,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 21:54:44,394 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-10-13 21:54:44,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 21:54:44,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 21:54:44,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:44,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 21:54:44,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2024-10-13 21:54:44,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 1 proven. 59 refuted. 0 times theorem prover too weak. 1354 trivial. 0 not checked. [2024-10-13 21:54:44,942 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:54:45,257 INFO L349 Elim1Store]: treesize reduction 13, result has 60.6 percent of original size [2024-10-13 21:54:45,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 28 [2024-10-13 21:54:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 1354 trivial. 0 not checked. [2024-10-13 21:54:45,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593125891] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:54:45,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:54:45,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 27 [2024-10-13 21:54:45,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644761034] [2024-10-13 21:54:45,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:54:45,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-13 21:54:45,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:45,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-13 21:54:45,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=553, Unknown=0, NotChecked=0, Total=702 [2024-10-13 21:54:45,305 INFO L87 Difference]: Start difference. First operand 207 states and 271 transitions. Second operand has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:45,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:45,745 INFO L93 Difference]: Finished difference Result 413 states and 545 transitions. [2024-10-13 21:54:45,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-13 21:54:45,745 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-10-13 21:54:45,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:45,747 INFO L225 Difference]: With dead ends: 413 [2024-10-13 21:54:45,747 INFO L226 Difference]: Without dead ends: 220 [2024-10-13 21:54:45,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=394, Invalid=1498, Unknown=0, NotChecked=0, Total=1892 [2024-10-13 21:54:45,749 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 59 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:45,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 168 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 21:54:45,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-13 21:54:45,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 211. [2024-10-13 21:54:45,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.3095238095238095) internal successors, (275), 210 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:45,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 275 transitions. [2024-10-13 21:54:45,778 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 275 transitions. Word has length 114 [2024-10-13 21:54:45,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:45,779 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 275 transitions. [2024-10-13 21:54:45,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:45,779 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 275 transitions. [2024-10-13 21:54:45,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-13 21:54:45,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:45,784 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:45,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-13 21:54:45,985 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,SelfDestructingSolverStorable8 [2024-10-13 21:54:45,986 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:45,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1663067282, now seen corresponding path program 1 times [2024-10-13 21:54:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:45,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52491003] [2024-10-13 21:54:45,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:45,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:46,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-13 21:54:46,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:46,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52491003] [2024-10-13 21:54:46,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52491003] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:46,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255393166] [2024-10-13 21:54:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:46,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:46,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:46,400 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) [2024-10-13 21:54:46,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 21:54:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:46,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 21:54:46,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-13 21:54:46,580 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:54:46,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-13 21:54:46,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255393166] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:54:46,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:54:46,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 30 [2024-10-13 21:54:46,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954160393] [2024-10-13 21:54:46,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:54:46,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-13 21:54:46,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-13 21:54:46,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2024-10-13 21:54:46,883 INFO L87 Difference]: Start difference. First operand 211 states and 275 transitions. Second operand has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:46,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:46,928 INFO L93 Difference]: Finished difference Result 422 states and 564 transitions. [2024-10-13 21:54:46,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 21:54:46,929 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-10-13 21:54:46,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:46,930 INFO L225 Difference]: With dead ends: 422 [2024-10-13 21:54:46,930 INFO L226 Difference]: Without dead ends: 226 [2024-10-13 21:54:46,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2024-10-13 21:54:46,931 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:46,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 21:54:46,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-10-13 21:54:46,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2024-10-13 21:54:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.288888888888889) internal successors, (290), 225 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:46,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 290 transitions. [2024-10-13 21:54:46,942 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 290 transitions. Word has length 118 [2024-10-13 21:54:46,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:46,942 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 290 transitions. [2024-10-13 21:54:46,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:46,942 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 290 transitions. [2024-10-13 21:54:46,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-13 21:54:46,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:46,944 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 28, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:46,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-13 21:54:47,146 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,SelfDestructingSolverStorable9 [2024-10-13 21:54:47,147 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:47,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:47,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2096992841, now seen corresponding path program 2 times [2024-10-13 21:54:47,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:47,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90358762] [2024-10-13 21:54:47,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:47,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-13 21:54:48,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:48,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90358762] [2024-10-13 21:54:48,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90358762] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:48,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812991475] [2024-10-13 21:54:48,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 21:54:48,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:48,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:48,103 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) [2024-10-13 21:54:48,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 21:54:48,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 21:54:48,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 21:54:48,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-13 21:54:48,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:48,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-13 21:54:48,346 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:54:49,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-13 21:54:49,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812991475] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:54:49,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:54:49,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 60 [2024-10-13 21:54:49,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188925440] [2024-10-13 21:54:49,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:54:49,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-10-13 21:54:49,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:49,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-10-13 21:54:49,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2024-10-13 21:54:49,306 INFO L87 Difference]: Start difference. First operand 226 states and 290 transitions. Second operand has 61 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 60 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:49,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:49,376 INFO L93 Difference]: Finished difference Result 452 states and 609 transitions. [2024-10-13 21:54:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-10-13 21:54:49,376 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 60 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2024-10-13 21:54:49,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:49,378 INFO L225 Difference]: With dead ends: 452 [2024-10-13 21:54:49,378 INFO L226 Difference]: Without dead ends: 256 [2024-10-13 21:54:49,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2024-10-13 21:54:49,380 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:49,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 21:54:49,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-10-13 21:54:49,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2024-10-13 21:54:49,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.2549019607843137) internal successors, (320), 255 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:49,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 320 transitions. [2024-10-13 21:54:49,392 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 320 transitions. Word has length 133 [2024-10-13 21:54:49,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:49,392 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 320 transitions. [2024-10-13 21:54:49,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 60 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:49,393 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 320 transitions. [2024-10-13 21:54:49,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-13 21:54:49,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:49,397 INFO L215 NwaCegarLoop]: trace histogram [58, 30, 30, 30, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:49,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-13 21:54:49,597 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,SelfDestructingSolverStorable10 [2024-10-13 21:54:49,597 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:49,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:49,598 INFO L85 PathProgramCache]: Analyzing trace with hash 86798249, now seen corresponding path program 3 times [2024-10-13 21:54:49,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:49,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878905190] [2024-10-13 21:54:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:49,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3049 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-13 21:54:52,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:52,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878905190] [2024-10-13 21:54:52,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878905190] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:52,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417522753] [2024-10-13 21:54:52,314 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 21:54:52,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:52,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:52,315 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) [2024-10-13 21:54:52,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 21:54:52,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-13 21:54:52,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 21:54:52,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 21:54:52,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:54:52,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-13 21:54:53,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 21:54:53,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 13 [2024-10-13 21:54:53,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3049 backedges. 1 proven. 147 refuted. 0 times theorem prover too weak. 2901 trivial. 0 not checked. [2024-10-13 21:54:53,418 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:54:54,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3049 backedges. 144 proven. 4 refuted. 0 times theorem prover too weak. 2901 trivial. 0 not checked. [2024-10-13 21:54:54,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417522753] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:54:54,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:54:54,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 12, 12] total 82 [2024-10-13 21:54:54,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212724627] [2024-10-13 21:54:54,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:54:54,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2024-10-13 21:54:54,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:54:54,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2024-10-13 21:54:54,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1938, Invalid=4704, Unknown=0, NotChecked=0, Total=6642 [2024-10-13 21:54:54,392 INFO L87 Difference]: Start difference. First operand 256 states and 320 transitions. Second operand has 82 states, 82 states have (on average 1.475609756097561) internal successors, (121), 82 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:56,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:54:56,853 INFO L93 Difference]: Finished difference Result 559 states and 722 transitions. [2024-10-13 21:54:56,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-10-13 21:54:56,854 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 1.475609756097561) internal successors, (121), 82 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-10-13 21:54:56,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:54:56,857 INFO L225 Difference]: With dead ends: 559 [2024-10-13 21:54:56,857 INFO L226 Difference]: Without dead ends: 363 [2024-10-13 21:54:56,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3905 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=5678, Invalid=16374, Unknown=0, NotChecked=0, Total=22052 [2024-10-13 21:54:56,864 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 86 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 21:54:56,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 203 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 21:54:56,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-10-13 21:54:56,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 260. [2024-10-13 21:54:56,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.250965250965251) internal successors, (324), 259 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 324 transitions. [2024-10-13 21:54:56,878 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 324 transitions. Word has length 163 [2024-10-13 21:54:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:54:56,878 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 324 transitions. [2024-10-13 21:54:56,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 1.475609756097561) internal successors, (121), 82 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:54:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 324 transitions. [2024-10-13 21:54:56,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-13 21:54:56,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:54:56,880 INFO L215 NwaCegarLoop]: trace histogram [59, 30, 30, 30, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:54:56,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-13 21:54:57,084 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,SelfDestructingSolverStorable11 [2024-10-13 21:54:57,085 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:54:57,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:54:57,085 INFO L85 PathProgramCache]: Analyzing trace with hash 464838339, now seen corresponding path program 4 times [2024-10-13 21:54:57,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:54:57,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613843355] [2024-10-13 21:54:57,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:54:57,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:54:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:54:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 3113 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2024-10-13 21:54:59,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:54:59,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613843355] [2024-10-13 21:54:59,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613843355] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:54:59,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468947035] [2024-10-13 21:54:59,518 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 21:54:59,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:54:59,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:54:59,520 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) [2024-10-13 21:54:59,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-13 21:54:59,766 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 21:54:59,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 21:54:59,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 21:54:59,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:55:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3113 backedges. 1 proven. 1335 refuted. 0 times theorem prover too weak. 1777 trivial. 0 not checked. [2024-10-13 21:55:00,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:55:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3113 backedges. 1 proven. 1335 refuted. 0 times theorem prover too weak. 1777 trivial. 0 not checked. [2024-10-13 21:55:02,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468947035] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:55:02,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:55:02,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 33, 33] total 124 [2024-10-13 21:55:02,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423246594] [2024-10-13 21:55:02,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:55:02,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2024-10-13 21:55:02,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:55:02,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2024-10-13 21:55:02,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3906, Invalid=11346, Unknown=0, NotChecked=0, Total=15252 [2024-10-13 21:55:02,422 INFO L87 Difference]: Start difference. First operand 260 states and 324 transitions. Second operand has 124 states, 124 states have (on average 2.129032258064516) internal successors, (264), 124 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:55:02,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:55:02,792 INFO L93 Difference]: Finished difference Result 652 states and 908 transitions. [2024-10-13 21:55:02,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2024-10-13 21:55:02,793 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 124 states have (on average 2.129032258064516) internal successors, (264), 124 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2024-10-13 21:55:02,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:55:02,795 INFO L225 Difference]: With dead ends: 652 [2024-10-13 21:55:02,795 INFO L226 Difference]: Without dead ends: 453 [2024-10-13 21:55:02,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3658 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=3906, Invalid=11346, Unknown=0, NotChecked=0, Total=15252 [2024-10-13 21:55:02,802 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 240 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 21:55:02,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 122 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 21:55:02,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-10-13 21:55:02,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2024-10-13 21:55:02,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 452 states have (on average 1.2853982300884956) internal successors, (581), 452 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:55:02,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 581 transitions. [2024-10-13 21:55:02,820 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 581 transitions. Word has length 167 [2024-10-13 21:55:02,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:55:02,820 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 581 transitions. [2024-10-13 21:55:02,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 2.129032258064516) internal successors, (264), 124 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:55:02,821 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 581 transitions. [2024-10-13 21:55:02,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-13 21:55:02,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:55:02,827 INFO L215 NwaCegarLoop]: trace histogram [62, 62, 62, 60, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:55:02,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-13 21:55:03,028 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,SelfDestructingSolverStorable12 [2024-10-13 21:55:03,028 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:55:03,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:55:03,028 INFO L85 PathProgramCache]: Analyzing trace with hash 191577512, now seen corresponding path program 5 times [2024-10-13 21:55:03,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:55:03,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481453070] [2024-10-13 21:55:03,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:55:03,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:55:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:55:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7573 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 5743 trivial. 0 not checked. [2024-10-13 21:55:05,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:55:05,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481453070] [2024-10-13 21:55:05,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481453070] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:55:05,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082938343] [2024-10-13 21:55:05,922 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 21:55:05,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:55:05,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:55:05,924 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) [2024-10-13 21:55:05,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-13 21:55:41,511 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2024-10-13 21:55:41,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 21:55:41,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-10-13 21:55:41,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:55:44,280 INFO L134 CoverageAnalysis]: Checked inductivity of 7573 backedges. 1 proven. 5735 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2024-10-13 21:55:44,280 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:55:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 7573 backedges. 1 proven. 5735 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2024-10-13 21:55:49,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082938343] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:55:49,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:55:49,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 65, 65] total 189 [2024-10-13 21:55:49,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877843817] [2024-10-13 21:55:49,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:55:49,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 189 states [2024-10-13 21:55:49,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:55:49,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 189 interpolants. [2024-10-13 21:55:49,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10080, Invalid=25452, Unknown=0, NotChecked=0, Total=35532 [2024-10-13 21:55:49,474 INFO L87 Difference]: Start difference. First operand 453 states and 581 transitions. Second operand has 189 states, 189 states have (on average 2.417989417989418) internal successors, (457), 189 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:55:50,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:55:50,913 INFO L93 Difference]: Finished difference Result 1229 states and 1741 transitions. [2024-10-13 21:55:50,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2024-10-13 21:55:50,913 INFO L78 Accepts]: Start accepts. Automaton has has 189 states, 189 states have (on average 2.417989417989418) internal successors, (457), 189 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 264 [2024-10-13 21:55:50,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:55:50,917 INFO L225 Difference]: With dead ends: 1229 [2024-10-13 21:55:50,917 INFO L226 Difference]: Without dead ends: 838 [2024-10-13 21:55:50,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7560 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=10080, Invalid=25452, Unknown=0, NotChecked=0, Total=35532 [2024-10-13 21:55:50,920 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 498 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 21:55:50,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 267 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 21:55:50,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-10-13 21:55:50,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2024-10-13 21:55:50,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.3070489844683393) internal successors, (1094), 837 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:55:50,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1094 transitions. [2024-10-13 21:55:50,950 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1094 transitions. Word has length 264 [2024-10-13 21:55:50,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:55:50,950 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1094 transitions. [2024-10-13 21:55:50,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 189 states, 189 states have (on average 2.417989417989418) internal successors, (457), 189 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:55:50,951 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1094 transitions. [2024-10-13 21:55:50,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-10-13 21:55:50,957 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:55:50,957 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 61, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:55:51,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-13 21:55:51,157 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,SelfDestructingSolverStorable13 [2024-10-13 21:55:51,158 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:55:51,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:55:51,158 INFO L85 PathProgramCache]: Analyzing trace with hash 271285091, now seen corresponding path program 6 times [2024-10-13 21:55:51,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:55:51,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384702832] [2024-10-13 21:55:51,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:55:51,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:55:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 21:55:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 25650 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 23759 trivial. 0 not checked. [2024-10-13 21:55:54,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 21:55:54,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384702832] [2024-10-13 21:55:54,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384702832] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 21:55:54,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835981580] [2024-10-13 21:55:54,189 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-13 21:55:54,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:55:54,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 21:55:54,190 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) [2024-10-13 21:55:54,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-13 21:55:54,847 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-10-13 21:55:54,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 21:55:54,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-13 21:55:54,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 21:55:56,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 21:55:56,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 13 [2024-10-13 21:55:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 25650 backedges. 1 proven. 1003 refuted. 0 times theorem prover too weak. 24646 trivial. 0 not checked. [2024-10-13 21:55:56,512 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 21:55:58,299 INFO L349 Elim1Store]: treesize reduction 13, result has 73.5 percent of original size [2024-10-13 21:55:58,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 49 treesize of output 47 [2024-10-13 21:55:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 25650 backedges. 124 proven. 880 refuted. 0 times theorem prover too weak. 24646 trivial. 0 not checked. [2024-10-13 21:55:58,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835981580] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 21:55:58,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 21:55:58,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 14, 14] total 88 [2024-10-13 21:55:58,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805582834] [2024-10-13 21:55:58,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 21:55:58,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-10-13 21:55:58,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 21:55:58,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-10-13 21:55:58,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2124, Invalid=5532, Unknown=0, NotChecked=0, Total=7656 [2024-10-13 21:55:58,459 INFO L87 Difference]: Start difference. First operand 838 states and 1094 transitions. Second operand has 88 states, 88 states have (on average 1.5340909090909092) internal successors, (135), 88 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:56:01,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 21:56:01,161 INFO L93 Difference]: Finished difference Result 2011 states and 2655 transitions. [2024-10-13 21:56:01,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2024-10-13 21:56:01,162 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 1.5340909090909092) internal successors, (135), 88 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 457 [2024-10-13 21:56:01,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 21:56:01,171 INFO L225 Difference]: With dead ends: 2011 [2024-10-13 21:56:01,171 INFO L226 Difference]: Without dead ends: 1236 [2024-10-13 21:56:01,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1043 GetRequests, 888 SyntacticMatches, 1 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4405 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=6207, Invalid=17973, Unknown=0, NotChecked=0, Total=24180 [2024-10-13 21:56:01,182 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 69 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 21:56:01,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 304 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 21:56:01,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2024-10-13 21:56:01,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 842. [2024-10-13 21:56:01,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.305588585017836) internal successors, (1098), 841 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:56:01,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1098 transitions. [2024-10-13 21:56:01,277 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1098 transitions. Word has length 457 [2024-10-13 21:56:01,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 21:56:01,277 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1098 transitions. [2024-10-13 21:56:01,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 1.5340909090909092) internal successors, (135), 88 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 21:56:01,278 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1098 transitions. [2024-10-13 21:56:01,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-10-13 21:56:01,285 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 21:56:01,285 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 62, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 21:56:01,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-13 21:56:01,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 21:56:01,486 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 21:56:01,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 21:56:01,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1691151497, now seen corresponding path program 7 times [2024-10-13 21:56:01,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 21:56:01,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921283493] [2024-10-13 21:56:01,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 21:56:01,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 21:56:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat