./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-examples/sorting_bubblesort_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-examples/sorting_bubblesort_ground-2.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 2719a9efd2165050483c20571c85746fdd7204d074459e12a38b31692a3fffb0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 15:16:32,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 15:16:32,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 15:16:32,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 15:16:32,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 15:16:32,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 15:16:32,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 15:16:32,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 15:16:32,341 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 15:16:32,342 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 15:16:32,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 15:16:32,343 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 15:16:32,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 15:16:32,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 15:16:32,344 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 15:16:32,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 15:16:32,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 15:16:32,345 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 15:16:32,345 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 15:16:32,346 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 15:16:32,346 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 15:16:32,346 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 15:16:32,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 15:16:32,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 15:16:32,347 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 15:16:32,348 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 15:16:32,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 15:16:32,348 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 15:16:32,349 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 15:16:32,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 15:16:32,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 15:16:32,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 15:16:32,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 15:16:32,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 15:16:32,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 15:16:32,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 15:16:32,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 15:16:32,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 15:16:32,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 15:16:32,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 15:16:32,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 15:16:32,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 15:16:32,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2719a9efd2165050483c20571c85746fdd7204d074459e12a38b31692a3fffb0 [2024-11-11 15:16:32,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 15:16:32,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 15:16:32,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 15:16:32,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 15:16:32,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 15:16:32,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/sorting_bubblesort_ground-2.i [2024-11-11 15:16:34,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 15:16:34,217 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 15:16:34,218 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-2.i [2024-11-11 15:16:34,227 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625ea2504/c5db8a976ae04ab7aaed83520246f23c/FLAG3c4971375 [2024-11-11 15:16:34,245 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625ea2504/c5db8a976ae04ab7aaed83520246f23c [2024-11-11 15:16:34,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 15:16:34,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 15:16:34,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 15:16:34,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 15:16:34,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 15:16:34,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8b2093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34, skipping insertion in model container [2024-11-11 15:16:34,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 15:16:34,467 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-2.i[820,833] [2024-11-11 15:16:34,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 15:16:34,496 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 15:16:34,508 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-2.i[820,833] [2024-11-11 15:16:34,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 15:16:34,536 INFO L204 MainTranslator]: Completed translation [2024-11-11 15:16:34,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34 WrapperNode [2024-11-11 15:16:34,537 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 15:16:34,538 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 15:16:34,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 15:16:34,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 15:16:34,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,552 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,572 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2024-11-11 15:16:34,573 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 15:16:34,574 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 15:16:34,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 15:16:34,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 15:16:34,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,586 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,603 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]. [2024-11-11 15:16:34,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 15:16:34,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 15:16:34,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 15:16:34,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 15:16:34,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (1/1) ... [2024-11-11 15:16:34,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 15:16:34,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:34,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 15:16:34,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 15:16:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 15:16:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 15:16:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 15:16:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 15:16:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-11 15:16:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-11 15:16:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 15:16:34,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 15:16:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-11 15:16:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-11 15:16:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 15:16:34,797 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 15:16:34,798 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 15:16:35,020 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-11 15:16:35,020 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 15:16:35,034 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 15:16:35,037 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-11 15:16:35,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 03:16:35 BoogieIcfgContainer [2024-11-11 15:16:35,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 15:16:35,040 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 15:16:35,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 15:16:35,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 15:16:35,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 03:16:34" (1/3) ... [2024-11-11 15:16:35,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c380457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 03:16:35, skipping insertion in model container [2024-11-11 15:16:35,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:16:34" (2/3) ... [2024-11-11 15:16:35,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c380457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 03:16:35, skipping insertion in model container [2024-11-11 15:16:35,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 03:16:35" (3/3) ... [2024-11-11 15:16:35,050 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_bubblesort_ground-2.i [2024-11-11 15:16:35,067 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 15:16:35,068 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 15:16:35,127 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 15:16:35,133 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;@4b1439d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 15:16:35,133 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 15:16:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.619047619047619) internal successors, (34), 22 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) [2024-11-11 15:16:35,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-11 15:16:35,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:35,144 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:35,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:35,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:35,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1961330543, now seen corresponding path program 1 times [2024-11-11 15:16:35,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:35,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500082407] [2024-11-11 15:16:35,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:35,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 15:16:35,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:35,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500082407] [2024-11-11 15:16:35,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500082407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 15:16:35,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 15:16:35,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 15:16:35,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291116806] [2024-11-11 15:16:35,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 15:16:35,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 15:16:35,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:35,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 15:16:35,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 15:16:35,370 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.619047619047619) internal successors, (34), 22 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) 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) [2024-11-11 15:16:35,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:35,412 INFO L93 Difference]: Finished difference Result 44 states and 66 transitions. [2024-11-11 15:16:35,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 15:16:35,416 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 [2024-11-11 15:16:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:35,423 INFO L225 Difference]: With dead ends: 44 [2024-11-11 15:16:35,423 INFO L226 Difference]: Without dead ends: 21 [2024-11-11 15:16:35,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 15:16:35,430 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 15:16:35,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 48 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:16:35,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-11 15:16:35,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-11-11 15:16:35,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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) [2024-11-11 15:16:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2024-11-11 15:16:35,462 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 10 [2024-11-11 15:16:35,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:35,462 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-11 15:16:35,463 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) [2024-11-11 15:16:35,463 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-11 15:16:35,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-11 15:16:35,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:35,464 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:35,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 15:16:35,465 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:35,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1306132977, now seen corresponding path program 1 times [2024-11-11 15:16:35,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:35,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618527949] [2024-11-11 15:16:35,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:35,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:35,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 15:16:35,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:35,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618527949] [2024-11-11 15:16:35,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618527949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:35,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019948739] [2024-11-11 15:16:35,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:35,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:35,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:35,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:35,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 15:16:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:35,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 15:16:35,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:16:35,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-11 15:16:35,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 15:16:35,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019948739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 15:16:35,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 15:16:35,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-11 15:16:35,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948540740] [2024-11-11 15:16:35,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 15:16:35,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 15:16:35,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:35,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 15:16:35,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 15:16:35,700 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-11 15:16:35,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:35,715 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2024-11-11 15:16:35,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 15:16:35,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-11 15:16:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:35,716 INFO L225 Difference]: With dead ends: 34 [2024-11-11 15:16:35,717 INFO L226 Difference]: Without dead ends: 25 [2024-11-11 15:16:35,717 INFO L434 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 [2024-11-11 15:16:35,718 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 5 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 15:16:35,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 47 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:16:35,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-11 15:16:35,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-11 15:16:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 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) [2024-11-11 15:16:35,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2024-11-11 15:16:35,724 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 12 [2024-11-11 15:16:35,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:35,724 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2024-11-11 15:16:35,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-11 15:16:35,725 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2024-11-11 15:16:35,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-11 15:16:35,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:35,726 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:35,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 15:16:35,926 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 [2024-11-11 15:16:35,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:35,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:35,928 INFO L85 PathProgramCache]: Analyzing trace with hash 735433629, now seen corresponding path program 1 times [2024-11-11 15:16:35,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:35,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780894878] [2024-11-11 15:16:35,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:35,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:36,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-11 15:16:36,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:36,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780894878] [2024-11-11 15:16:36,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780894878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:36,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738947500] [2024-11-11 15:16:36,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:36,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:36,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:36,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:36,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 15:16:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:36,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 15:16:36,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:16:36,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-11 15:16:36,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 15:16:36,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738947500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 15:16:36,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 15:16:36,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-11 15:16:36,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878255555] [2024-11-11 15:16:36,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 15:16:36,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 15:16:36,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:36,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 15:16:36,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 15:16:36,108 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-11 15:16:36,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:36,125 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2024-11-11 15:16:36,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 15:16:36,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2024-11-11 15:16:36,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:36,126 INFO L225 Difference]: With dead ends: 48 [2024-11-11 15:16:36,126 INFO L226 Difference]: Without dead ends: 29 [2024-11-11 15:16:36,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 15:16:36,128 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 38 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 [2024-11-11 15:16:36,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 38 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:16:36,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-11 15:16:36,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2024-11-11 15:16:36,132 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) [2024-11-11 15:16:36,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-11-11 15:16:36,133 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 15 [2024-11-11 15:16:36,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:36,134 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-11-11 15:16:36,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-11 15:16:36,134 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-11 15:16:36,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-11 15:16:36,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:36,135 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:36,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 15:16:36,335 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 [2024-11-11 15:16:36,336 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:36,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:36,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1537360201, now seen corresponding path program 1 times [2024-11-11 15:16:36,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:36,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898235960] [2024-11-11 15:16:36,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:36,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 15:16:36,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:36,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898235960] [2024-11-11 15:16:36,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898235960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:36,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763762842] [2024-11-11 15:16:36,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:36,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:36,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:36,429 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:36,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 15:16:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:36,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 15:16:36,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:16:36,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 15:16:36,547 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:16:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 15:16:36,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763762842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:16:36,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:16:36,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-11 15:16:36,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349079475] [2024-11-11 15:16:36,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:16:36,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 15:16:36,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:36,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 15:16:36,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-11 15:16:36,584 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2024-11-11 15:16:36,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:36,631 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2024-11-11 15:16:36,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 15:16:36,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 18 [2024-11-11 15:16:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:36,632 INFO L225 Difference]: With dead ends: 53 [2024-11-11 15:16:36,632 INFO L226 Difference]: Without dead ends: 32 [2024-11-11 15:16:36,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-11 15:16:36,634 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 15:16:36,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 60 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:16:36,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-11 15:16:36,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-11 15:16:36,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 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) [2024-11-11 15:16:36,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-11-11 15:16:36,644 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 18 [2024-11-11 15:16:36,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:36,644 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-11-11 15:16:36,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2024-11-11 15:16:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-11-11 15:16:36,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-11 15:16:36,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:36,647 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:36,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 15:16:36,848 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 [2024-11-11 15:16:36,849 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:36,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:36,849 INFO L85 PathProgramCache]: Analyzing trace with hash 60072271, now seen corresponding path program 2 times [2024-11-11 15:16:36,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:36,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986332160] [2024-11-11 15:16:36,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:36,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-11 15:16:36,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:36,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986332160] [2024-11-11 15:16:36,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986332160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:36,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56974330] [2024-11-11 15:16:36,949 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-11 15:16:36,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:36,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:36,951 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:36,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 15:16:37,023 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-11 15:16:37,023 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:16:37,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-11 15:16:37,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:16:37,086 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 15:16:37,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:16:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 15:16:37,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56974330] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:16:37,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:16:37,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-11 15:16:37,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006988592] [2024-11-11 15:16:37,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:16:37,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-11 15:16:37,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:37,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-11 15:16:37,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-11 15:16:37,196 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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) [2024-11-11 15:16:37,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:37,294 INFO L93 Difference]: Finished difference Result 74 states and 98 transitions. [2024-11-11 15:16:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 15:16:37,295 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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 24 [2024-11-11 15:16:37,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:37,296 INFO L225 Difference]: With dead ends: 74 [2024-11-11 15:16:37,296 INFO L226 Difference]: Without dead ends: 53 [2024-11-11 15:16:37,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-11 15:16:37,297 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:16:37,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 115 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:16:37,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-11 15:16:37,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2024-11-11 15:16:37,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1875) internal successors, (57), 48 states have internal predecessors, (57), 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) [2024-11-11 15:16:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2024-11-11 15:16:37,308 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 24 [2024-11-11 15:16:37,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:37,309 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2024-11-11 15:16:37,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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) [2024-11-11 15:16:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2024-11-11 15:16:37,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-11 15:16:37,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:37,311 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:37,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 15:16:37,511 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 [2024-11-11 15:16:37,512 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:37,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:37,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2139379787, now seen corresponding path program 3 times [2024-11-11 15:16:37,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:37,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11087805] [2024-11-11 15:16:37,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:37,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-11 15:16:37,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:37,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11087805] [2024-11-11 15:16:37,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11087805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:37,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061100544] [2024-11-11 15:16:37,655 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-11 15:16:37,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:37,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:37,657 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:37,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 15:16:37,728 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-11 15:16:37,728 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:16:37,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 15:16:37,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:16:37,756 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-11 15:16:37,756 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:16:37,791 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-11 15:16:37,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061100544] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:16:37,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:16:37,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-11 15:16:37,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412507321] [2024-11-11 15:16:37,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:16:37,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 15:16:37,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:37,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 15:16:37,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-11 15:16:37,797 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 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) [2024-11-11 15:16:37,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:37,841 INFO L93 Difference]: Finished difference Result 98 states and 129 transitions. [2024-11-11 15:16:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 15:16:37,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 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) Word has length 39 [2024-11-11 15:16:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:37,845 INFO L225 Difference]: With dead ends: 98 [2024-11-11 15:16:37,845 INFO L226 Difference]: Without dead ends: 73 [2024-11-11 15:16:37,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-11 15:16:37,846 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 15:16:37,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 15:16:37,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-11 15:16:37,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-11 15:16:37,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 72 states have internal predecessors, (89), 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) [2024-11-11 15:16:37,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2024-11-11 15:16:37,859 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 39 [2024-11-11 15:16:37,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:37,859 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2024-11-11 15:16:37,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 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) [2024-11-11 15:16:37,859 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2024-11-11 15:16:37,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-11 15:16:37,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:37,861 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:37,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-11 15:16:38,062 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 [2024-11-11 15:16:38,063 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:38,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:38,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1707834293, now seen corresponding path program 4 times [2024-11-11 15:16:38,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:38,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095132806] [2024-11-11 15:16:38,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:38,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 15:16:38,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:38,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095132806] [2024-11-11 15:16:38,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095132806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:38,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367391101] [2024-11-11 15:16:38,359 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-11 15:16:38,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:38,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:38,361 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:38,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 15:16:38,444 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-11 15:16:38,445 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:16:38,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-11 15:16:38,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:16:38,502 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 15:16:38,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:16:38,745 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 15:16:38,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367391101] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:16:38,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:16:38,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-11-11 15:16:38,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201349893] [2024-11-11 15:16:38,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:16:38,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-11 15:16:38,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:38,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-11 15:16:38,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-11 15:16:38,748 INFO L87 Difference]: Start difference. First operand 73 states and 89 transitions. Second operand has 25 states, 25 states have (on average 2.44) internal successors, (61), 25 states have internal predecessors, (61), 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) [2024-11-11 15:16:38,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:38,816 INFO L93 Difference]: Finished difference Result 147 states and 190 transitions. [2024-11-11 15:16:38,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-11 15:16:38,817 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.44) internal successors, (61), 25 states have internal predecessors, (61), 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 51 [2024-11-11 15:16:38,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:38,818 INFO L225 Difference]: With dead ends: 147 [2024-11-11 15:16:38,818 INFO L226 Difference]: Without dead ends: 97 [2024-11-11 15:16:38,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-11-11 15:16:38,819 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:16:38,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 98 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:16:38,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-11 15:16:38,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-11 15:16:38,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.1770833333333333) internal successors, (113), 96 states have internal predecessors, (113), 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) [2024-11-11 15:16:38,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 113 transitions. [2024-11-11 15:16:38,831 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 113 transitions. Word has length 51 [2024-11-11 15:16:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:38,831 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 113 transitions. [2024-11-11 15:16:38,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.44) internal successors, (61), 25 states have internal predecessors, (61), 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) [2024-11-11 15:16:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 113 transitions. [2024-11-11 15:16:38,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-11 15:16:38,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:38,833 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:38,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-11 15:16:39,034 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 [2024-11-11 15:16:39,034 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:39,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:39,035 INFO L85 PathProgramCache]: Analyzing trace with hash -56741325, now seen corresponding path program 5 times [2024-11-11 15:16:39,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:39,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677414217] [2024-11-11 15:16:39,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:39,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 15:16:39,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:39,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677414217] [2024-11-11 15:16:39,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677414217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:39,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493036808] [2024-11-11 15:16:39,701 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-11 15:16:39,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:39,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:39,704 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:39,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 15:16:40,165 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2024-11-11 15:16:40,166 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:16:40,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-11 15:16:40,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:16:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 1 proven. 51 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-11 15:16:40,312 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:16:40,508 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 1 proven. 51 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-11 15:16:40,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493036808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:16:40,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:16:40,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 9, 9] total 39 [2024-11-11 15:16:40,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470494436] [2024-11-11 15:16:40,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:16:40,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-11 15:16:40,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:40,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-11 15:16:40,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=1063, Unknown=0, NotChecked=0, Total=1482 [2024-11-11 15:16:40,512 INFO L87 Difference]: Start difference. First operand 97 states and 113 transitions. Second operand has 39 states, 39 states have (on average 2.6923076923076925) internal successors, (105), 39 states have internal predecessors, (105), 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) [2024-11-11 15:16:40,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:40,662 INFO L93 Difference]: Finished difference Result 198 states and 262 transitions. [2024-11-11 15:16:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-11 15:16:40,662 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.6923076923076925) internal successors, (105), 39 states have internal predecessors, (105), 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 75 [2024-11-11 15:16:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:40,664 INFO L225 Difference]: With dead ends: 198 [2024-11-11 15:16:40,664 INFO L226 Difference]: Without dead ends: 148 [2024-11-11 15:16:40,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=419, Invalid=1063, Unknown=0, NotChecked=0, Total=1482 [2024-11-11 15:16:40,666 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 35 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:16:40,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 150 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:16:40,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-11 15:16:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2024-11-11 15:16:40,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.226027397260274) internal successors, (179), 146 states have internal predecessors, (179), 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) [2024-11-11 15:16:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 179 transitions. [2024-11-11 15:16:40,685 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 179 transitions. Word has length 75 [2024-11-11 15:16:40,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:40,685 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 179 transitions. [2024-11-11 15:16:40,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.6923076923076925) internal successors, (105), 39 states have internal predecessors, (105), 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) [2024-11-11 15:16:40,685 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 179 transitions. [2024-11-11 15:16:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 15:16:40,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:40,687 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:40,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-11 15:16:40,887 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 [2024-11-11 15:16:40,888 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:40,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:40,888 INFO L85 PathProgramCache]: Analyzing trace with hash -315531791, now seen corresponding path program 6 times [2024-11-11 15:16:40,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:40,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896468658] [2024-11-11 15:16:40,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:40,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-11 15:16:41,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:41,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896468658] [2024-11-11 15:16:41,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896468658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:41,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912975753] [2024-11-11 15:16:41,629 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-11 15:16:41,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:41,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:41,631 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:41,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-11 15:16:42,668 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 24 check-sat command(s) [2024-11-11 15:16:42,668 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:16:42,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-11 15:16:42,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:16:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 1 proven. 287 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2024-11-11 15:16:42,998 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:16:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 1 proven. 287 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2024-11-11 15:16:43,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912975753] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:16:43,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:16:43,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 17, 17] total 56 [2024-11-11 15:16:43,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000046047] [2024-11-11 15:16:43,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:16:43,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-11 15:16:43,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-11 15:16:43,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=2260, Unknown=0, NotChecked=0, Total=3080 [2024-11-11 15:16:43,548 INFO L87 Difference]: Start difference. First operand 147 states and 179 transitions. Second operand has 56 states, 56 states have (on average 2.767857142857143) internal successors, (155), 56 states have internal predecessors, (155), 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) [2024-11-11 15:16:43,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:43,792 INFO L93 Difference]: Finished difference Result 344 states and 472 transitions. [2024-11-11 15:16:43,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-11 15:16:43,792 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 2.767857142857143) internal successors, (155), 56 states have internal predecessors, (155), 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 101 [2024-11-11 15:16:43,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:43,795 INFO L225 Difference]: With dead ends: 344 [2024-11-11 15:16:43,795 INFO L226 Difference]: Without dead ends: 246 [2024-11-11 15:16:43,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=820, Invalid=2260, Unknown=0, NotChecked=0, Total=3080 [2024-11-11 15:16:43,799 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 83 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 15:16:43,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 228 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 15:16:43,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-11 15:16:43,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 245. [2024-11-11 15:16:43,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 244 states have (on average 1.2663934426229508) internal successors, (309), 244 states have internal predecessors, (309), 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) [2024-11-11 15:16:43,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 309 transitions. [2024-11-11 15:16:43,826 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 309 transitions. Word has length 101 [2024-11-11 15:16:43,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:43,826 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 309 transitions. [2024-11-11 15:16:43,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 2.767857142857143) internal successors, (155), 56 states have internal predecessors, (155), 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) [2024-11-11 15:16:43,827 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 309 transitions. [2024-11-11 15:16:43,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 15:16:43,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:43,829 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 30, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:43,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-11 15:16:44,029 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 [2024-11-11 15:16:44,030 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:44,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:44,030 INFO L85 PathProgramCache]: Analyzing trace with hash 150161967, now seen corresponding path program 7 times [2024-11-11 15:16:44,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:44,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590675843] [2024-11-11 15:16:44,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:44,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:44,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2024-11-11 15:16:44,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:44,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590675843] [2024-11-11 15:16:44,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590675843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:44,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134089679] [2024-11-11 15:16:44,934 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-11 15:16:44,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:44,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:44,936 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:44,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-11 15:16:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:45,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-11 15:16:45,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:16:45,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2024-11-11 15:16:45,164 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:16:46,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2024-11-11 15:16:46,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134089679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:16:46,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:16:46,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2024-11-11 15:16:46,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561747949] [2024-11-11 15:16:46,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:16:46,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-11 15:16:46,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:46,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-11 15:16:46,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2024-11-11 15:16:46,011 INFO L87 Difference]: Start difference. First operand 245 states and 309 transitions. Second operand has 53 states, 53 states have (on average 2.207547169811321) internal successors, (117), 53 states have internal predecessors, (117), 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) [2024-11-11 15:16:46,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:46,156 INFO L93 Difference]: Finished difference Result 491 states and 644 transitions. [2024-11-11 15:16:46,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-11 15:16:46,156 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.207547169811321) internal successors, (117), 53 states have internal predecessors, (117), 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 151 [2024-11-11 15:16:46,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:46,159 INFO L225 Difference]: With dead ends: 491 [2024-11-11 15:16:46,159 INFO L226 Difference]: Without dead ends: 297 [2024-11-11 15:16:46,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2024-11-11 15:16:46,163 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:16:46,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 60 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:16:46,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-11 15:16:46,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2024-11-11 15:16:46,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.2195945945945945) internal successors, (361), 296 states have internal predecessors, (361), 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) [2024-11-11 15:16:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 361 transitions. [2024-11-11 15:16:46,179 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 361 transitions. Word has length 151 [2024-11-11 15:16:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:46,179 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 361 transitions. [2024-11-11 15:16:46,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.207547169811321) internal successors, (117), 53 states have internal predecessors, (117), 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) [2024-11-11 15:16:46,180 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 361 transitions. [2024-11-11 15:16:46,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-11 15:16:46,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:46,186 INFO L218 NwaCegarLoop]: trace histogram [50, 50, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:46,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-11 15:16:46,386 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 [2024-11-11 15:16:46,386 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:46,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:46,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1092106235, now seen corresponding path program 8 times [2024-11-11 15:16:46,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:46,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336928154] [2024-11-11 15:16:46,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:46,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:48,628 INFO L134 CoverageAnalysis]: Checked inductivity of 3836 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2024-11-11 15:16:48,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:48,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336928154] [2024-11-11 15:16:48,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336928154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:48,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761678199] [2024-11-11 15:16:48,629 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-11 15:16:48,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:48,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:48,630 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:48,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-11 15:16:48,824 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-11 15:16:48,824 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:16:48,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-11 15:16:48,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:16:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3836 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2024-11-11 15:16:48,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:16:51,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3836 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2024-11-11 15:16:51,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761678199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:16:51,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:16:51,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 105 [2024-11-11 15:16:51,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334374356] [2024-11-11 15:16:51,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:16:51,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2024-11-11 15:16:51,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:16:51,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2024-11-11 15:16:51,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2024-11-11 15:16:51,653 INFO L87 Difference]: Start difference. First operand 297 states and 361 transitions. Second operand has 105 states, 105 states have (on average 2.104761904761905) internal successors, (221), 105 states have internal predecessors, (221), 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) [2024-11-11 15:16:51,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:16:51,950 INFO L93 Difference]: Finished difference Result 595 states and 774 transitions. [2024-11-11 15:16:51,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-11-11 15:16:51,954 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 2.104761904761905) internal successors, (221), 105 states have internal predecessors, (221), 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 203 [2024-11-11 15:16:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:16:51,957 INFO L225 Difference]: With dead ends: 595 [2024-11-11 15:16:51,957 INFO L226 Difference]: Without dead ends: 401 [2024-11-11 15:16:51,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2024-11-11 15:16:51,961 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 15:16:51,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 60 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 15:16:51,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-11 15:16:51,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-11 15:16:51,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.1625) internal successors, (465), 400 states have internal predecessors, (465), 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) [2024-11-11 15:16:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 465 transitions. [2024-11-11 15:16:51,978 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 465 transitions. Word has length 203 [2024-11-11 15:16:51,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:16:51,979 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 465 transitions. [2024-11-11 15:16:51,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 2.104761904761905) internal successors, (221), 105 states have internal predecessors, (221), 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) [2024-11-11 15:16:51,980 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 465 transitions. [2024-11-11 15:16:51,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-11-11 15:16:51,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:16:51,984 INFO L218 NwaCegarLoop]: trace histogram [102, 102, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:16:52,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-11 15:16:52,184 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 [2024-11-11 15:16:52,185 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:16:52,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:16:52,185 INFO L85 PathProgramCache]: Analyzing trace with hash -696784493, now seen corresponding path program 9 times [2024-11-11 15:16:52,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:16:52,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741287337] [2024-11-11 15:16:52,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:16:52,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:16:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:16:58,750 INFO L134 CoverageAnalysis]: Checked inductivity of 11740 backedges. 0 proven. 10404 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2024-11-11 15:16:58,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:16:58,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741287337] [2024-11-11 15:16:58,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741287337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:16:58,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631583700] [2024-11-11 15:16:58,750 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-11 15:16:58,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:16:58,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:16:58,752 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:16:58,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-11 15:17:04,110 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2024-11-11 15:17:04,111 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:17:04,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-11 15:17:04,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:17:05,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11740 backedges. 1 proven. 1335 refuted. 0 times theorem prover too weak. 10404 trivial. 0 not checked. [2024-11-11 15:17:05,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:17:07,563 INFO L134 CoverageAnalysis]: Checked inductivity of 11740 backedges. 1 proven. 1335 refuted. 0 times theorem prover too weak. 10404 trivial. 0 not checked. [2024-11-11 15:17:07,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631583700] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:17:07,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:17:07,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 33, 33] total 167 [2024-11-11 15:17:07,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240061492] [2024-11-11 15:17:07,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:17:07,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2024-11-11 15:17:07,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:17:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2024-11-11 15:17:07,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7475, Invalid=20247, Unknown=0, NotChecked=0, Total=27722 [2024-11-11 15:17:07,578 INFO L87 Difference]: Start difference. First operand 401 states and 465 transitions. Second operand has 167 states, 167 states have (on average 2.4491017964071857) internal successors, (409), 167 states have internal predecessors, (409), 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) [2024-11-11 15:17:08,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:17:08,220 INFO L93 Difference]: Finished difference Result 790 states and 1046 transitions. [2024-11-11 15:17:08,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2024-11-11 15:17:08,221 INFO L78 Accepts]: Start accepts. Automaton has has 167 states, 167 states have (on average 2.4491017964071857) internal successors, (409), 167 states have internal predecessors, (409), 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 307 [2024-11-11 15:17:08,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:17:08,224 INFO L225 Difference]: With dead ends: 790 [2024-11-11 15:17:08,225 INFO L226 Difference]: Without dead ends: 596 [2024-11-11 15:17:08,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6324 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=7475, Invalid=20247, Unknown=0, NotChecked=0, Total=27722 [2024-11-11 15:17:08,227 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 304 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 15:17:08,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 188 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 15:17:08,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-11 15:17:08,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 595. [2024-11-11 15:17:08,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 594 states have (on average 1.2171717171717171) internal successors, (723), 594 states have internal predecessors, (723), 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) [2024-11-11 15:17:08,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 723 transitions. [2024-11-11 15:17:08,243 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 723 transitions. Word has length 307 [2024-11-11 15:17:08,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:17:08,243 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 723 transitions. [2024-11-11 15:17:08,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 167 states have (on average 2.4491017964071857) internal successors, (409), 167 states have internal predecessors, (409), 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) [2024-11-11 15:17:08,243 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 723 transitions. [2024-11-11 15:17:08,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-11-11 15:17:08,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:17:08,248 INFO L218 NwaCegarLoop]: trace histogram [103, 103, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:17:08,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-11 15:17:08,449 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 [2024-11-11 15:17:08,449 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:17:08,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:17:08,450 INFO L85 PathProgramCache]: Analyzing trace with hash -175079087, now seen corresponding path program 10 times [2024-11-11 15:17:08,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:17:08,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329583340] [2024-11-11 15:17:08,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:17:08,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:17:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:17:14,834 INFO L134 CoverageAnalysis]: Checked inductivity of 16345 backedges. 0 proven. 10609 refuted. 0 times theorem prover too weak. 5736 trivial. 0 not checked. [2024-11-11 15:17:14,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:17:14,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329583340] [2024-11-11 15:17:14,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329583340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:17:14,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317448940] [2024-11-11 15:17:14,835 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-11 15:17:14,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:17:14,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:17:14,838 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:17:14,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-11 15:17:15,177 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-11 15:17:15,177 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:17:15,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 1483 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-11-11 15:17:15,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:17:15,403 INFO L134 CoverageAnalysis]: Checked inductivity of 16345 backedges. 0 proven. 10609 refuted. 0 times theorem prover too weak. 5736 trivial. 0 not checked. [2024-11-11 15:17:15,403 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:17:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 16345 backedges. 0 proven. 10609 refuted. 0 times theorem prover too weak. 5736 trivial. 0 not checked. [2024-11-11 15:17:25,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317448940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:17:25,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:17:25,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106, 106] total 211 [2024-11-11 15:17:25,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921966010] [2024-11-11 15:17:25,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:17:25,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 211 states [2024-11-11 15:17:25,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:17:25,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 211 interpolants. [2024-11-11 15:17:25,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22155, Invalid=22155, Unknown=0, NotChecked=0, Total=44310 [2024-11-11 15:17:25,871 INFO L87 Difference]: Start difference. First operand 595 states and 723 transitions. Second operand has 211 states, 211 states have (on average 2.052132701421801) internal successors, (433), 211 states have internal predecessors, (433), 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) [2024-11-11 15:17:26,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:17:26,582 INFO L93 Difference]: Finished difference Result 1191 states and 1551 transitions. [2024-11-11 15:17:26,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2024-11-11 15:17:26,583 INFO L78 Accepts]: Start accepts. Automaton has has 211 states, 211 states have (on average 2.052132701421801) internal successors, (433), 211 states have internal predecessors, (433), 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 405 [2024-11-11 15:17:26,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:17:26,586 INFO L225 Difference]: With dead ends: 1191 [2024-11-11 15:17:26,586 INFO L226 Difference]: Without dead ends: 805 [2024-11-11 15:17:26,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=22155, Invalid=22155, Unknown=0, NotChecked=0, Total=44310 [2024-11-11 15:17:26,590 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 15:17:26,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 212 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 15:17:26,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-11 15:17:26,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 805. [2024-11-11 15:17:26,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 804 states have (on average 1.1604477611940298) internal successors, (933), 804 states have internal predecessors, (933), 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) [2024-11-11 15:17:26,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 933 transitions. [2024-11-11 15:17:26,609 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 933 transitions. Word has length 405 [2024-11-11 15:17:26,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:17:26,610 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 933 transitions. [2024-11-11 15:17:26,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 211 states, 211 states have (on average 2.052132701421801) internal successors, (433), 211 states have internal predecessors, (433), 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) [2024-11-11 15:17:26,610 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 933 transitions. [2024-11-11 15:17:26,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2024-11-11 15:17:26,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:17:26,619 INFO L218 NwaCegarLoop]: trace histogram [208, 208, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:17:26,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-11 15:17:26,819 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 [2024-11-11 15:17:26,820 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:17:26,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:17:26,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1764590783, now seen corresponding path program 11 times [2024-11-11 15:17:26,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:17:26,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926159231] [2024-11-11 15:17:26,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:17:26,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:17:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:17:51,312 INFO L134 CoverageAnalysis]: Checked inductivity of 49000 backedges. 0 proven. 43264 refuted. 0 times theorem prover too weak. 5736 trivial. 0 not checked. [2024-11-11 15:17:51,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:17:51,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926159231] [2024-11-11 15:17:51,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926159231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:17:51,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613080954] [2024-11-11 15:17:51,312 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-11 15:17:51,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:17:51,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:17:51,314 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:17:51,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process