./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label55.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9bd683bba4a6f80276f3e47665317b71beb0e1362c26cf1e7ce2f4cc203cd812 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 16:16:24,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 16:16:24,434 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 16:16:24,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 16:16:24,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 16:16:24,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 16:16:24,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 16:16:24,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 16:16:24,468 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 16:16:24,469 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 16:16:24,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 16:16:24,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 16:16:24,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 16:16:24,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 16:16:24,471 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 16:16:24,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 16:16:24,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 16:16:24,473 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 16:16:24,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 16:16:24,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 16:16:24,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 16:16:24,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 16:16:24,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 16:16:24,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 16:16:24,478 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 16:16:24,479 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 16:16:24,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 16:16:24,479 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 16:16:24,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 16:16:24,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 16:16:24,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 16:16:24,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 16:16:24,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 16:16:24,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 16:16:24,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 16:16:24,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 16:16:24,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 16:16:24,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 16:16:24,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 16:16:24,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 16:16:24,482 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 16:16:24,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 16:16:24,484 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd683bba4a6f80276f3e47665317b71beb0e1362c26cf1e7ce2f4cc203cd812 [2024-10-12 16:16:24,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 16:16:24,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 16:16:24,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 16:16:24,747 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 16:16:24,748 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 16:16:24,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label55.c [2024-10-12 16:16:26,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 16:16:26,390 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 16:16:26,391 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label55.c [2024-10-12 16:16:26,409 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f21e91ff7/902f6719e2f3445ebee92e3e87efcba8/FLAG426704a31 [2024-10-12 16:16:26,683 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f21e91ff7/902f6719e2f3445ebee92e3e87efcba8 [2024-10-12 16:16:26,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 16:16:26,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 16:16:26,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 16:16:26,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 16:16:26,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 16:16:26,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:16:26" (1/1) ... [2024-10-12 16:16:26,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa9dee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:26, skipping insertion in model container [2024-10-12 16:16:26,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:16:26" (1/1) ... [2024-10-12 16:16:26,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 16:16:27,006 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label55.c[5831,5844] [2024-10-12 16:16:27,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 16:16:27,225 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 16:16:27,256 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label55.c[5831,5844] [2024-10-12 16:16:27,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 16:16:27,396 INFO L204 MainTranslator]: Completed translation [2024-10-12 16:16:27,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27 WrapperNode [2024-10-12 16:16:27,397 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 16:16:27,398 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 16:16:27,398 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 16:16:27,398 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 16:16:27,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,505 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2024-10-12 16:16:27,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 16:16:27,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 16:16:27,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 16:16:27,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 16:16:27,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,527 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,559 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 16:16:27,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,594 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,617 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 16:16:27,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 16:16:27,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 16:16:27,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 16:16:27,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (1/1) ... [2024-10-12 16:16:27,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 16:16:27,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:27,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 16:16:27,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 16:16:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 16:16:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 16:16:27,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 16:16:27,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 16:16:27,797 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 16:16:27,799 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 16:16:29,143 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-10-12 16:16:29,144 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 16:16:29,195 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 16:16:29,196 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 16:16:29,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:16:29 BoogieIcfgContainer [2024-10-12 16:16:29,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 16:16:29,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 16:16:29,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 16:16:29,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 16:16:29,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:16:26" (1/3) ... [2024-10-12 16:16:29,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46517152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:16:29, skipping insertion in model container [2024-10-12 16:16:29,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:16:27" (2/3) ... [2024-10-12 16:16:29,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46517152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:16:29, skipping insertion in model container [2024-10-12 16:16:29,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:16:29" (3/3) ... [2024-10-12 16:16:29,205 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label55.c [2024-10-12 16:16:29,220 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 16:16:29,221 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 16:16:29,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 16:16:29,296 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;@337d836f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 16:16:29,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 16:16:29,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:29,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-12 16:16:29,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:29,311 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:29,312 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:29,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:29,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2064485996, now seen corresponding path program 1 times [2024-10-12 16:16:29,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:29,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605300731] [2024-10-12 16:16:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:29,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:16:29,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:29,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605300731] [2024-10-12 16:16:29,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605300731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:29,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:29,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:16:29,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768633341] [2024-10-12 16:16:29,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:29,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 16:16:29,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:29,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 16:16:29,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 16:16:29,572 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 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 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:29,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:29,625 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2024-10-12 16:16:29,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 16:16:29,628 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 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 56 [2024-10-12 16:16:29,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:29,639 INFO L225 Difference]: With dead ends: 365 [2024-10-12 16:16:29,640 INFO L226 Difference]: Without dead ends: 181 [2024-10-12 16:16:29,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 16:16:29,649 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:29,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 16:16:29,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-10-12 16:16:29,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-10-12 16:16:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:29,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2024-10-12 16:16:29,703 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 56 [2024-10-12 16:16:29,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:29,704 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2024-10-12 16:16:29,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:29,705 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2024-10-12 16:16:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-12 16:16:29,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:29,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:29,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 16:16:29,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:29,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:29,708 INFO L85 PathProgramCache]: Analyzing trace with hash -701156091, now seen corresponding path program 1 times [2024-10-12 16:16:29,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:29,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866699493] [2024-10-12 16:16:29,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:29,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:29,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:16:29,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:29,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866699493] [2024-10-12 16:16:29,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866699493] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:29,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:29,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:16:29,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401746992] [2024-10-12 16:16:29,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:29,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:29,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:29,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:29,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:29,951 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:30,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:30,810 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2024-10-12 16:16:30,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:30,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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 56 [2024-10-12 16:16:30,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:30,814 INFO L225 Difference]: With dead ends: 539 [2024-10-12 16:16:30,814 INFO L226 Difference]: Without dead ends: 359 [2024-10-12 16:16:30,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:30,816 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:30,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 87 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 16:16:30,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-10-12 16:16:30,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-10-12 16:16:30,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.4217877094972067) internal successors, (509), 358 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:30,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 509 transitions. [2024-10-12 16:16:30,839 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 509 transitions. Word has length 56 [2024-10-12 16:16:30,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:30,839 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 509 transitions. [2024-10-12 16:16:30,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:30,839 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 509 transitions. [2024-10-12 16:16:30,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-12 16:16:30,850 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:30,850 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:30,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 16:16:30,850 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:30,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:30,852 INFO L85 PathProgramCache]: Analyzing trace with hash -756294245, now seen corresponding path program 1 times [2024-10-12 16:16:30,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:30,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328805542] [2024-10-12 16:16:30,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:30,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:31,287 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:16:31,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:31,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328805542] [2024-10-12 16:16:31,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328805542] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:31,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:31,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:16:31,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306747727] [2024-10-12 16:16:31,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:31,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:16:31,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:31,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:16:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:16:31,294 INFO L87 Difference]: Start difference. First operand 359 states and 509 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:32,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:32,295 INFO L93 Difference]: Finished difference Result 1073 states and 1445 transitions. [2024-10-12 16:16:32,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:16:32,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-10-12 16:16:32,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:32,299 INFO L225 Difference]: With dead ends: 1073 [2024-10-12 16:16:32,299 INFO L226 Difference]: Without dead ends: 715 [2024-10-12 16:16:32,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 16:16:32,302 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 418 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:32,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 119 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 16:16:32,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-10-12 16:16:32,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2024-10-12 16:16:32,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.2619047619047619) internal successors, (901), 714 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 901 transitions. [2024-10-12 16:16:32,336 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 901 transitions. Word has length 135 [2024-10-12 16:16:32,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:32,337 INFO L471 AbstractCegarLoop]: Abstraction has 715 states and 901 transitions. [2024-10-12 16:16:32,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:32,341 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 901 transitions. [2024-10-12 16:16:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-12 16:16:32,352 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:32,352 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:32,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 16:16:32,353 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:32,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1268520444, now seen corresponding path program 1 times [2024-10-12 16:16:32,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:32,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380545715] [2024-10-12 16:16:32,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:32,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-12 16:16:32,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:32,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380545715] [2024-10-12 16:16:32,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380545715] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:16:32,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610139054] [2024-10-12 16:16:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:32,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:32,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:32,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:16:32,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 16:16:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:32,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:16:32,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:16:33,051 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-10-12 16:16:33,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:16:33,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610139054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:33,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:16:33,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-10-12 16:16:33,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289424072] [2024-10-12 16:16:33,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:33,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:33,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:33,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:33,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 16:16:33,058 INFO L87 Difference]: Start difference. First operand 715 states and 901 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:33,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:33,700 INFO L93 Difference]: Finished difference Result 1251 states and 1611 transitions. [2024-10-12 16:16:33,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:33,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 161 [2024-10-12 16:16:33,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:33,709 INFO L225 Difference]: With dead ends: 1251 [2024-10-12 16:16:33,711 INFO L226 Difference]: Without dead ends: 1249 [2024-10-12 16:16:33,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 16:16:33,713 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 91 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:33,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 34 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:16:33,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-10-12 16:16:33,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 893. [2024-10-12 16:16:33,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 892 states have (on average 1.3374439461883407) internal successors, (1193), 892 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1193 transitions. [2024-10-12 16:16:33,749 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1193 transitions. Word has length 161 [2024-10-12 16:16:33,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:33,749 INFO L471 AbstractCegarLoop]: Abstraction has 893 states and 1193 transitions. [2024-10-12 16:16:33,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:33,750 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1193 transitions. [2024-10-12 16:16:33,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-10-12 16:16:33,758 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:33,758 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:33,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 16:16:33,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:33,959 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:33,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:33,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1918030536, now seen corresponding path program 1 times [2024-10-12 16:16:33,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:33,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355400789] [2024-10-12 16:16:33,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:33,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:34,219 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-12 16:16:34,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:34,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355400789] [2024-10-12 16:16:34,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355400789] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:34,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:34,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:16:34,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863085967] [2024-10-12 16:16:34,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:34,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:16:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:34,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:16:34,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:16:34,222 INFO L87 Difference]: Start difference. First operand 893 states and 1193 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:34,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:34,951 INFO L93 Difference]: Finished difference Result 1992 states and 2628 transitions. [2024-10-12 16:16:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:16:34,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 215 [2024-10-12 16:16:34,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:34,957 INFO L225 Difference]: With dead ends: 1992 [2024-10-12 16:16:34,957 INFO L226 Difference]: Without dead ends: 1071 [2024-10-12 16:16:34,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:16:34,959 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 102 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:34,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 118 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 16:16:34,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-10-12 16:16:34,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2024-10-12 16:16:34,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.1803738317757009) internal successors, (1263), 1070 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1263 transitions. [2024-10-12 16:16:34,977 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1263 transitions. Word has length 215 [2024-10-12 16:16:34,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:34,978 INFO L471 AbstractCegarLoop]: Abstraction has 1071 states and 1263 transitions. [2024-10-12 16:16:34,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:34,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1263 transitions. [2024-10-12 16:16:34,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-12 16:16:34,981 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:34,981 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:34,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 16:16:34,981 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:34,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:34,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1659105140, now seen corresponding path program 1 times [2024-10-12 16:16:34,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:34,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860052592] [2024-10-12 16:16:34,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:34,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:35,350 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:16:35,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:35,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860052592] [2024-10-12 16:16:35,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860052592] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:16:35,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155211347] [2024-10-12 16:16:35,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:35,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:35,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:35,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:16:35,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 16:16:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:35,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:16:35,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:16:35,669 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-10-12 16:16:35,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:16:35,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155211347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:35,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:16:35,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-12 16:16:35,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312848739] [2024-10-12 16:16:35,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:35,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:35,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:35,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:35,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:16:35,672 INFO L87 Difference]: Start difference. First operand 1071 states and 1263 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:36,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:36,212 INFO L93 Difference]: Finished difference Result 2319 states and 2778 transitions. [2024-10-12 16:16:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:36,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 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 227 [2024-10-12 16:16:36,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:36,217 INFO L225 Difference]: With dead ends: 2319 [2024-10-12 16:16:36,217 INFO L226 Difference]: Without dead ends: 1249 [2024-10-12 16:16:36,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:16:36,219 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 84 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:36,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 45 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 16:16:36,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-10-12 16:16:36,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1071. [2024-10-12 16:16:36,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.1672897196261682) internal successors, (1249), 1070 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1249 transitions. [2024-10-12 16:16:36,236 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1249 transitions. Word has length 227 [2024-10-12 16:16:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:36,236 INFO L471 AbstractCegarLoop]: Abstraction has 1071 states and 1249 transitions. [2024-10-12 16:16:36,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 2 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:36,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1249 transitions. [2024-10-12 16:16:36,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-10-12 16:16:36,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:36,251 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:36,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-12 16:16:36,451 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,SelfDestructingSolverStorable5 [2024-10-12 16:16:36,452 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:36,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:36,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1055801397, now seen corresponding path program 1 times [2024-10-12 16:16:36,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:36,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860591854] [2024-10-12 16:16:36,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:36,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:36,752 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:16:36,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:36,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860591854] [2024-10-12 16:16:36,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860591854] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:36,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:36,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:16:36,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65996083] [2024-10-12 16:16:36,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:36,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:36,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:36,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:36,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:36,755 INFO L87 Difference]: Start difference. First operand 1071 states and 1249 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:37,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:37,314 INFO L93 Difference]: Finished difference Result 2853 states and 3361 transitions. [2024-10-12 16:16:37,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:37,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 230 [2024-10-12 16:16:37,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:37,320 INFO L225 Difference]: With dead ends: 2853 [2024-10-12 16:16:37,320 INFO L226 Difference]: Without dead ends: 1783 [2024-10-12 16:16:37,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:37,322 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 111 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:37,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 74 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 16:16:37,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2024-10-12 16:16:37,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1783. [2024-10-12 16:16:37,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1782 states have (on average 1.1290684624017957) internal successors, (2012), 1782 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:37,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2012 transitions. [2024-10-12 16:16:37,351 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2012 transitions. Word has length 230 [2024-10-12 16:16:37,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:37,351 INFO L471 AbstractCegarLoop]: Abstraction has 1783 states and 2012 transitions. [2024-10-12 16:16:37,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:37,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2012 transitions. [2024-10-12 16:16:37,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-10-12 16:16:37,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:37,356 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:37,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 16:16:37,356 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:37,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:37,357 INFO L85 PathProgramCache]: Analyzing trace with hash -2003784645, now seen corresponding path program 1 times [2024-10-12 16:16:37,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:37,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61676292] [2024-10-12 16:16:37,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:37,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:37,666 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-10-12 16:16:37,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:37,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61676292] [2024-10-12 16:16:37,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61676292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:37,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:37,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:16:37,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147863977] [2024-10-12 16:16:37,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:37,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:16:37,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:37,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:16:37,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:16:37,669 INFO L87 Difference]: Start difference. First operand 1783 states and 2012 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:38,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:38,298 INFO L93 Difference]: Finished difference Result 3623 states and 4104 transitions. [2024-10-12 16:16:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:16:38,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 3 states have internal predecessors, (165), 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 347 [2024-10-12 16:16:38,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:38,305 INFO L225 Difference]: With dead ends: 3623 [2024-10-12 16:16:38,305 INFO L226 Difference]: Without dead ends: 1961 [2024-10-12 16:16:38,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:16:38,307 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 141 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:38,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 14 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:16:38,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2024-10-12 16:16:38,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1783. [2024-10-12 16:16:38,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1782 states have (on average 1.084736251402918) internal successors, (1933), 1782 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:38,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 1933 transitions. [2024-10-12 16:16:38,336 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 1933 transitions. Word has length 347 [2024-10-12 16:16:38,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:38,337 INFO L471 AbstractCegarLoop]: Abstraction has 1783 states and 1933 transitions. [2024-10-12 16:16:38,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:38,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 1933 transitions. [2024-10-12 16:16:38,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-10-12 16:16:38,345 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:38,345 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2024-10-12 16:16:38,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 16:16:38,346 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:38,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:38,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1114323211, now seen corresponding path program 1 times [2024-10-12 16:16:38,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:38,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565312904] [2024-10-12 16:16:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:38,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:38,761 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-10-12 16:16:38,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:38,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565312904] [2024-10-12 16:16:38,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565312904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:38,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:38,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:16:38,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966911256] [2024-10-12 16:16:38,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:38,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:38,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:38,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:38,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:38,763 INFO L87 Difference]: Start difference. First operand 1783 states and 1933 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:39,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:39,300 INFO L93 Difference]: Finished difference Result 4277 states and 4674 transitions. [2024-10-12 16:16:39,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:39,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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 442 [2024-10-12 16:16:39,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:39,308 INFO L225 Difference]: With dead ends: 4277 [2024-10-12 16:16:39,309 INFO L226 Difference]: Without dead ends: 2673 [2024-10-12 16:16:39,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:39,312 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 110 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:39,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 242 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 16:16:39,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2024-10-12 16:16:39,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 2139. [2024-10-12 16:16:39,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.0720299345182414) internal successors, (2292), 2138 states have internal predecessors, (2292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:39,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2292 transitions. [2024-10-12 16:16:39,349 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2292 transitions. Word has length 442 [2024-10-12 16:16:39,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:39,350 INFO L471 AbstractCegarLoop]: Abstraction has 2139 states and 2292 transitions. [2024-10-12 16:16:39,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2292 transitions. [2024-10-12 16:16:39,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-10-12 16:16:39,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:39,357 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:39,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 16:16:39,357 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:39,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:39,358 INFO L85 PathProgramCache]: Analyzing trace with hash -816748486, now seen corresponding path program 1 times [2024-10-12 16:16:39,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:39,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745708986] [2024-10-12 16:16:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:39,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-10-12 16:16:39,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:39,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745708986] [2024-10-12 16:16:39,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745708986] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:39,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:39,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:16:39,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954750045] [2024-10-12 16:16:39,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:39,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:39,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:39,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:39,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:39,778 INFO L87 Difference]: Start difference. First operand 2139 states and 2292 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:40,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:40,339 INFO L93 Difference]: Finished difference Result 4811 states and 5227 transitions. [2024-10-12 16:16:40,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:40,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 449 [2024-10-12 16:16:40,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:40,349 INFO L225 Difference]: With dead ends: 4811 [2024-10-12 16:16:40,349 INFO L226 Difference]: Without dead ends: 2851 [2024-10-12 16:16:40,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:40,352 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 113 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:40,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 199 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 16:16:40,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2024-10-12 16:16:40,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2851. [2024-10-12 16:16:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2850 states have (on average 1.07859649122807) internal successors, (3074), 2850 states have internal predecessors, (3074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:40,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3074 transitions. [2024-10-12 16:16:40,402 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3074 transitions. Word has length 449 [2024-10-12 16:16:40,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:40,403 INFO L471 AbstractCegarLoop]: Abstraction has 2851 states and 3074 transitions. [2024-10-12 16:16:40,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:40,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3074 transitions. [2024-10-12 16:16:40,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2024-10-12 16:16:40,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:40,406 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:40,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 16:16:40,407 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:40,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:40,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1969224981, now seen corresponding path program 1 times [2024-10-12 16:16:40,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:40,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389269747] [2024-10-12 16:16:40,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:40,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-10-12 16:16:40,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:40,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389269747] [2024-10-12 16:16:40,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389269747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:40,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:40,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:16:40,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265796443] [2024-10-12 16:16:40,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:40,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:40,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:40,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:40,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:40,719 INFO L87 Difference]: Start difference. First operand 2851 states and 3074 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:41,324 INFO L93 Difference]: Finished difference Result 6591 states and 7211 transitions. [2024-10-12 16:16:41,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:41,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 490 [2024-10-12 16:16:41,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:41,337 INFO L225 Difference]: With dead ends: 6591 [2024-10-12 16:16:41,337 INFO L226 Difference]: Without dead ends: 3919 [2024-10-12 16:16:41,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:41,342 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:41,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 50 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:16:41,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2024-10-12 16:16:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3563. [2024-10-12 16:16:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3563 states, 3562 states have (on average 1.0783267827063447) internal successors, (3841), 3562 states have internal predecessors, (3841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:41,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 3841 transitions. [2024-10-12 16:16:41,412 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 3841 transitions. Word has length 490 [2024-10-12 16:16:41,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:41,413 INFO L471 AbstractCegarLoop]: Abstraction has 3563 states and 3841 transitions. [2024-10-12 16:16:41,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 3841 transitions. [2024-10-12 16:16:41,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2024-10-12 16:16:41,418 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:41,420 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:41,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 16:16:41,420 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:41,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash 988904161, now seen corresponding path program 1 times [2024-10-12 16:16:41,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:41,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162763344] [2024-10-12 16:16:41,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:41,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:42,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 1144 proven. 104 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2024-10-12 16:16:42,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:42,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162763344] [2024-10-12 16:16:42,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162763344] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:16:42,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283544624] [2024-10-12 16:16:42,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:42,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:42,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:42,319 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:16:42,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 16:16:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:42,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:16:42,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:16:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2024-10-12 16:16:42,624 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:16:42,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283544624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:42,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:16:42,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-12 16:16:42,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062150888] [2024-10-12 16:16:42,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:42,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:42,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:42,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:42,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:16:42,628 INFO L87 Difference]: Start difference. First operand 3563 states and 3841 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:43,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:43,201 INFO L93 Difference]: Finished difference Result 8015 states and 8684 transitions. [2024-10-12 16:16:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:43,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 635 [2024-10-12 16:16:43,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:43,217 INFO L225 Difference]: With dead ends: 8015 [2024-10-12 16:16:43,218 INFO L226 Difference]: Without dead ends: 4631 [2024-10-12 16:16:43,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:16:43,223 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 124 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:43,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 244 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 16:16:43,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2024-10-12 16:16:43,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4453. [2024-10-12 16:16:43,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4453 states, 4452 states have (on average 1.0721024258760108) internal successors, (4773), 4452 states have internal predecessors, (4773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:43,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4453 states to 4453 states and 4773 transitions. [2024-10-12 16:16:43,315 INFO L78 Accepts]: Start accepts. Automaton has 4453 states and 4773 transitions. Word has length 635 [2024-10-12 16:16:43,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:43,316 INFO L471 AbstractCegarLoop]: Abstraction has 4453 states and 4773 transitions. [2024-10-12 16:16:43,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:43,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4453 states and 4773 transitions. [2024-10-12 16:16:43,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2024-10-12 16:16:43,322 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:43,323 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:43,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-12 16:16:43,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:43,528 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:43,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:43,529 INFO L85 PathProgramCache]: Analyzing trace with hash 938868735, now seen corresponding path program 1 times [2024-10-12 16:16:43,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:43,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810022459] [2024-10-12 16:16:43,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:43,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1672 backedges. 1199 proven. 104 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2024-10-12 16:16:44,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:44,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810022459] [2024-10-12 16:16:44,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810022459] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:16:44,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351981664] [2024-10-12 16:16:44,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:44,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:44,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:44,346 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:16:44,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 16:16:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:44,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:16:44,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:16:45,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1672 backedges. 1226 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-10-12 16:16:45,122 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:16:45,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351981664] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:45,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:16:45,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-12 16:16:45,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341237720] [2024-10-12 16:16:45,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:45,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:45,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:45,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:45,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:16:45,127 INFO L87 Difference]: Start difference. First operand 4453 states and 4773 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 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) [2024-10-12 16:16:45,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:45,550 INFO L93 Difference]: Finished difference Result 8905 states and 9560 transitions. [2024-10-12 16:16:45,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:45,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 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) Word has length 647 [2024-10-12 16:16:45,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:45,565 INFO L225 Difference]: With dead ends: 8905 [2024-10-12 16:16:45,566 INFO L226 Difference]: Without dead ends: 4631 [2024-10-12 16:16:45,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:16:45,572 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:45,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 240 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 16:16:45,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2024-10-12 16:16:45,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4275. [2024-10-12 16:16:45,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4275 states, 4274 states have (on average 1.0692559663079082) internal successors, (4570), 4274 states have internal predecessors, (4570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 4570 transitions. [2024-10-12 16:16:45,635 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 4570 transitions. Word has length 647 [2024-10-12 16:16:45,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:45,635 INFO L471 AbstractCegarLoop]: Abstraction has 4275 states and 4570 transitions. [2024-10-12 16:16:45,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 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) [2024-10-12 16:16:45,636 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 4570 transitions. [2024-10-12 16:16:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2024-10-12 16:16:45,642 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:45,643 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:45,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-12 16:16:45,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:45,844 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:45,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:45,844 INFO L85 PathProgramCache]: Analyzing trace with hash 389018647, now seen corresponding path program 1 times [2024-10-12 16:16:45,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:45,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106239971] [2024-10-12 16:16:45,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:45,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 1329 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2024-10-12 16:16:46,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:46,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106239971] [2024-10-12 16:16:46,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106239971] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:16:46,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114121448] [2024-10-12 16:16:46,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:46,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:46,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:46,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:16:46,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 16:16:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:46,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:16:46,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:16:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2024-10-12 16:16:46,886 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:16:46,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114121448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:46,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:16:46,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-12 16:16:46,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468629014] [2024-10-12 16:16:46,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:46,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:46,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:46,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:46,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 16:16:46,889 INFO L87 Difference]: Start difference. First operand 4275 states and 4570 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:47,383 INFO L93 Difference]: Finished difference Result 9083 states and 9770 transitions. [2024-10-12 16:16:47,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:47,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 792 [2024-10-12 16:16:47,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:47,399 INFO L225 Difference]: With dead ends: 9083 [2024-10-12 16:16:47,399 INFO L226 Difference]: Without dead ends: 4987 [2024-10-12 16:16:47,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 795 GetRequests, 792 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 16:16:47,404 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 124 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:47,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 242 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 16:16:47,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2024-10-12 16:16:47,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4809. [2024-10-12 16:16:47,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4809 states, 4808 states have (on average 1.0665557404326123) internal successors, (5128), 4808 states have internal predecessors, (5128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:47,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4809 states to 4809 states and 5128 transitions. [2024-10-12 16:16:47,466 INFO L78 Accepts]: Start accepts. Automaton has 4809 states and 5128 transitions. Word has length 792 [2024-10-12 16:16:47,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:47,467 INFO L471 AbstractCegarLoop]: Abstraction has 4809 states and 5128 transitions. [2024-10-12 16:16:47,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:47,468 INFO L276 IsEmpty]: Start isEmpty. Operand 4809 states and 5128 transitions. [2024-10-12 16:16:47,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2024-10-12 16:16:47,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:47,475 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:47,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 16:16:47,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-12 16:16:47,676 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:47,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:47,676 INFO L85 PathProgramCache]: Analyzing trace with hash -339535317, now seen corresponding path program 1 times [2024-10-12 16:16:47,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:47,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627086586] [2024-10-12 16:16:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:47,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:48,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 1369 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2024-10-12 16:16:48,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:48,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627086586] [2024-10-12 16:16:48,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627086586] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:16:48,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811713616] [2024-10-12 16:16:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:48,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:48,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:48,195 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:16:48,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 16:16:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:48,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:16:48,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:16:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2024-10-12 16:16:48,547 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:16:48,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811713616] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:48,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:16:48,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-12 16:16:48,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818237606] [2024-10-12 16:16:48,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:48,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:48,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:48,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:48,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-12 16:16:48,553 INFO L87 Difference]: Start difference. First operand 4809 states and 5128 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:49,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:49,020 INFO L93 Difference]: Finished difference Result 10685 states and 11425 transitions. [2024-10-12 16:16:49,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:49,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 800 [2024-10-12 16:16:49,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:49,032 INFO L225 Difference]: With dead ends: 10685 [2024-10-12 16:16:49,032 INFO L226 Difference]: Without dead ends: 6055 [2024-10-12 16:16:49,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 803 GetRequests, 800 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-12 16:16:49,040 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 127 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:49,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 57 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 16:16:49,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states. [2024-10-12 16:16:49,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 5343. [2024-10-12 16:16:49,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 1.0668289030325722) internal successors, (5699), 5342 states have internal predecessors, (5699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 5699 transitions. [2024-10-12 16:16:49,122 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 5699 transitions. Word has length 800 [2024-10-12 16:16:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:49,123 INFO L471 AbstractCegarLoop]: Abstraction has 5343 states and 5699 transitions. [2024-10-12 16:16:49,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 5699 transitions. [2024-10-12 16:16:49,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 884 [2024-10-12 16:16:49,134 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:49,134 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:49,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-12 16:16:49,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-12 16:16:49,336 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:49,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:49,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1805465417, now seen corresponding path program 1 times [2024-10-12 16:16:49,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:49,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943344003] [2024-10-12 16:16:49,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:49,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2434 backedges. 1586 proven. 0 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2024-10-12 16:16:49,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:49,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943344003] [2024-10-12 16:16:49,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943344003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:49,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:49,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:16:49,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769914358] [2024-10-12 16:16:49,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:49,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:49,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:49,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:49,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:49,817 INFO L87 Difference]: Start difference. First operand 5343 states and 5699 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 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) [2024-10-12 16:16:50,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:50,292 INFO L93 Difference]: Finished difference Result 11041 states and 11816 transitions. [2024-10-12 16:16:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:50,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 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 883 [2024-10-12 16:16:50,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:50,302 INFO L225 Difference]: With dead ends: 11041 [2024-10-12 16:16:50,302 INFO L226 Difference]: Without dead ends: 5877 [2024-10-12 16:16:50,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:50,308 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 109 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:50,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 35 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 16:16:50,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5877 states. [2024-10-12 16:16:50,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5877 to 5877. [2024-10-12 16:16:50,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5877 states, 5876 states have (on average 1.0616065350578625) internal successors, (6238), 5876 states have internal predecessors, (6238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:50,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5877 states to 5877 states and 6238 transitions. [2024-10-12 16:16:50,380 INFO L78 Accepts]: Start accepts. Automaton has 5877 states and 6238 transitions. Word has length 883 [2024-10-12 16:16:50,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:50,381 INFO L471 AbstractCegarLoop]: Abstraction has 5877 states and 6238 transitions. [2024-10-12 16:16:50,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 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) [2024-10-12 16:16:50,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5877 states and 6238 transitions. [2024-10-12 16:16:50,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2024-10-12 16:16:50,391 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:50,392 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:50,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 16:16:50,392 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:50,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:50,393 INFO L85 PathProgramCache]: Analyzing trace with hash 351458487, now seen corresponding path program 1 times [2024-10-12 16:16:50,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:50,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473275612] [2024-10-12 16:16:50,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:50,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:51,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2638 backedges. 1790 proven. 0 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2024-10-12 16:16:51,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:51,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473275612] [2024-10-12 16:16:51,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473275612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:51,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:16:51,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:16:51,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087103049] [2024-10-12 16:16:51,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:51,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:51,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:51,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:51,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:51,308 INFO L87 Difference]: Start difference. First operand 5877 states and 6238 transitions. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:51,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:51,726 INFO L93 Difference]: Finished difference Result 11397 states and 12114 transitions. [2024-10-12 16:16:51,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:51,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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 902 [2024-10-12 16:16:51,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:51,736 INFO L225 Difference]: With dead ends: 11397 [2024-10-12 16:16:51,736 INFO L226 Difference]: Without dead ends: 5699 [2024-10-12 16:16:51,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:16:51,742 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 21 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:51,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 224 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 16:16:51,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5699 states. [2024-10-12 16:16:51,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5699 to 5521. [2024-10-12 16:16:51,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5521 states, 5520 states have (on average 1.0525362318840579) internal successors, (5810), 5520 states have internal predecessors, (5810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:51,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5521 states to 5521 states and 5810 transitions. [2024-10-12 16:16:51,805 INFO L78 Accepts]: Start accepts. Automaton has 5521 states and 5810 transitions. Word has length 902 [2024-10-12 16:16:51,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:51,805 INFO L471 AbstractCegarLoop]: Abstraction has 5521 states and 5810 transitions. [2024-10-12 16:16:51,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:51,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5521 states and 5810 transitions. [2024-10-12 16:16:51,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 927 [2024-10-12 16:16:51,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:51,816 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:51,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 16:16:51,816 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:51,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:51,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1036102343, now seen corresponding path program 1 times [2024-10-12 16:16:51,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:51,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700003654] [2024-10-12 16:16:51,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:51,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:52,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2674 backedges. 1780 proven. 93 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2024-10-12 16:16:52,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:52,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700003654] [2024-10-12 16:16:52,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700003654] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:16:52,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298523473] [2024-10-12 16:16:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:52,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:52,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:52,558 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:16:52,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-12 16:16:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:52,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:16:52,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:16:52,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2674 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 2290 trivial. 0 not checked. [2024-10-12 16:16:52,911 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:16:52,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298523473] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:52,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:16:52,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-12 16:16:52,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665332141] [2024-10-12 16:16:52,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:52,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:52,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:52,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:52,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:16:52,914 INFO L87 Difference]: Start difference. First operand 5521 states and 5810 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:53,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:53,333 INFO L93 Difference]: Finished difference Result 10863 states and 11440 transitions. [2024-10-12 16:16:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:53,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 926 [2024-10-12 16:16:53,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:53,342 INFO L225 Difference]: With dead ends: 10863 [2024-10-12 16:16:53,342 INFO L226 Difference]: Without dead ends: 5521 [2024-10-12 16:16:53,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 929 GetRequests, 925 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:16:53,348 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 127 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:53,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 208 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 16:16:53,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2024-10-12 16:16:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 5343. [2024-10-12 16:16:53,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 1.0496068888056909) internal successors, (5607), 5342 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:53,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 5607 transitions. [2024-10-12 16:16:53,406 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 5607 transitions. Word has length 926 [2024-10-12 16:16:53,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:53,407 INFO L471 AbstractCegarLoop]: Abstraction has 5343 states and 5607 transitions. [2024-10-12 16:16:53,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:53,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 5607 transitions. [2024-10-12 16:16:53,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2024-10-12 16:16:53,417 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:53,418 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:53,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-12 16:16:53,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:53,619 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:53,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:53,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1711175731, now seen corresponding path program 1 times [2024-10-12 16:16:53,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:53,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759283876] [2024-10-12 16:16:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:53,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:54,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2697 backedges. 1794 proven. 93 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2024-10-12 16:16:54,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:54,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759283876] [2024-10-12 16:16:54,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759283876] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:16:54,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562777680] [2024-10-12 16:16:54,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:54,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:54,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:54,389 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:16:54,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-12 16:16:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:54,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:16:54,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:16:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2697 backedges. 990 proven. 0 refuted. 0 times theorem prover too weak. 1707 trivial. 0 not checked. [2024-10-12 16:16:56,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:16:56,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562777680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:56,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:16:56,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-12 16:16:56,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87746891] [2024-10-12 16:16:56,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:56,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:56,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:56,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:56,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:16:56,476 INFO L87 Difference]: Start difference. First operand 5343 states and 5607 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 2 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:56,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:56,835 INFO L93 Difference]: Finished difference Result 10685 states and 11222 transitions. [2024-10-12 16:16:56,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:56,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 2 states have internal predecessors, (296), 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 934 [2024-10-12 16:16:56,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:56,843 INFO L225 Difference]: With dead ends: 10685 [2024-10-12 16:16:56,843 INFO L226 Difference]: Without dead ends: 5521 [2024-10-12 16:16:56,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 933 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:16:56,849 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:56,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 46 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 16:16:56,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2024-10-12 16:16:56,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 5521. [2024-10-12 16:16:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5521 states, 5520 states have (on average 1.0443840579710144) internal successors, (5765), 5520 states have internal predecessors, (5765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:56,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5521 states to 5521 states and 5765 transitions. [2024-10-12 16:16:56,911 INFO L78 Accepts]: Start accepts. Automaton has 5521 states and 5765 transitions. Word has length 934 [2024-10-12 16:16:56,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:56,911 INFO L471 AbstractCegarLoop]: Abstraction has 5521 states and 5765 transitions. [2024-10-12 16:16:56,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 2 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:56,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5521 states and 5765 transitions. [2024-10-12 16:16:56,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 991 [2024-10-12 16:16:56,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:56,923 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:56,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-12 16:16:57,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:57,125 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:57,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:57,125 INFO L85 PathProgramCache]: Analyzing trace with hash 411509847, now seen corresponding path program 1 times [2024-10-12 16:16:57,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:57,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531809305] [2024-10-12 16:16:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:57,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:57,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 1969 proven. 93 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2024-10-12 16:16:57,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:57,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531809305] [2024-10-12 16:16:57,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531809305] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:16:57,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534603903] [2024-10-12 16:16:57,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:57,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:57,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:57,775 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:16:57,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-12 16:16:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:58,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:16:58,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:16:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 1139 proven. 0 refuted. 0 times theorem prover too weak. 1938 trivial. 0 not checked. [2024-10-12 16:16:58,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:16:58,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534603903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:16:58,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:16:58,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-12 16:16:58,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438319060] [2024-10-12 16:16:58,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:16:58,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:16:58,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:16:58,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:16:58,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:16:58,383 INFO L87 Difference]: Start difference. First operand 5521 states and 5765 transitions. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:16:58,779 INFO L93 Difference]: Finished difference Result 11041 states and 11535 transitions. [2024-10-12 16:16:58,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:16:58,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 990 [2024-10-12 16:16:58,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:16:58,787 INFO L225 Difference]: With dead ends: 11041 [2024-10-12 16:16:58,787 INFO L226 Difference]: Without dead ends: 5699 [2024-10-12 16:16:58,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 993 GetRequests, 989 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:16:58,792 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 66 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 16:16:58,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 228 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 16:16:58,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5699 states. [2024-10-12 16:16:58,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5699 to 5699. [2024-10-12 16:16:58,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 5698 states have (on average 1.0368550368550369) internal successors, (5908), 5698 states have internal predecessors, (5908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:58,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 5908 transitions. [2024-10-12 16:16:58,855 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 5908 transitions. Word has length 990 [2024-10-12 16:16:58,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:16:58,856 INFO L471 AbstractCegarLoop]: Abstraction has 5699 states and 5908 transitions. [2024-10-12 16:16:58,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:16:58,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 5908 transitions. [2024-10-12 16:16:58,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2024-10-12 16:16:58,867 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:16:58,868 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:16:58,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-12 16:16:59,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:59,072 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:16:59,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:16:59,073 INFO L85 PathProgramCache]: Analyzing trace with hash 684789215, now seen corresponding path program 1 times [2024-10-12 16:16:59,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:16:59,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477076591] [2024-10-12 16:16:59,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:59,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:16:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:16:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3312 backedges. 2116 proven. 93 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2024-10-12 16:16:59,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:16:59,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477076591] [2024-10-12 16:16:59,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477076591] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:16:59,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761545061] [2024-10-12 16:16:59,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:16:59,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:16:59,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:16:59,804 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:16:59,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-12 16:17:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:17:00,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 16:17:00,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:17:00,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3312 backedges. 2209 proven. 0 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2024-10-12 16:17:00,571 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:17:00,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761545061] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:17:00,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:17:00,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-12 16:17:00,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752046277] [2024-10-12 16:17:00,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:17:00,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:17:00,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:17:00,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:17:00,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:17:00,574 INFO L87 Difference]: Start difference. First operand 5699 states and 5908 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:17:00,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:17:00,924 INFO L93 Difference]: Finished difference Result 11397 states and 11815 transitions. [2024-10-12 16:17:00,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:17:00,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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 1038 [2024-10-12 16:17:00,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:17:00,933 INFO L225 Difference]: With dead ends: 11397 [2024-10-12 16:17:00,933 INFO L226 Difference]: Without dead ends: 5877 [2024-10-12 16:17:00,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1041 GetRequests, 1037 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:17:00,939 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 16:17:00,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 63 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 16:17:00,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5877 states. [2024-10-12 16:17:00,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5877 to 5521. [2024-10-12 16:17:00,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5521 states, 5520 states have (on average 1.0371376811594204) internal successors, (5725), 5520 states have internal predecessors, (5725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:17:00,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5521 states to 5521 states and 5725 transitions. [2024-10-12 16:17:00,995 INFO L78 Accepts]: Start accepts. Automaton has 5521 states and 5725 transitions. Word has length 1038 [2024-10-12 16:17:00,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:17:00,995 INFO L471 AbstractCegarLoop]: Abstraction has 5521 states and 5725 transitions. [2024-10-12 16:17:00,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:17:00,996 INFO L276 IsEmpty]: Start isEmpty. Operand 5521 states and 5725 transitions. [2024-10-12 16:17:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1116 [2024-10-12 16:17:01,007 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:17:01,007 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:17:01,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-12 16:17:01,211 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,SelfDestructingSolverStorable20 [2024-10-12 16:17:01,212 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:17:01,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:17:01,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1572165184, now seen corresponding path program 1 times [2024-10-12 16:17:01,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:17:01,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748258123] [2024-10-12 16:17:01,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:17:01,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:17:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:17:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3977 backedges. 2906 proven. 72 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2024-10-12 16:17:02,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:17:02,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748258123] [2024-10-12 16:17:02,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748258123] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:17:02,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274893670] [2024-10-12 16:17:02,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:17:02,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:17:02,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:17:02,289 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:17:02,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-12 16:17:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:17:02,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 16:17:02,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:17:03,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3977 backedges. 2865 proven. 666 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-10-12 16:17:03,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 16:17:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3977 backedges. 2978 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2024-10-12 16:17:03,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274893670] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-12 16:17:03,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-12 16:17:03,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2024-10-12 16:17:03,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530880877] [2024-10-12 16:17:03,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:17:03,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 16:17:03,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:17:03,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 16:17:03,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-10-12 16:17:03,950 INFO L87 Difference]: Start difference. First operand 5521 states and 5725 transitions. Second operand has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:17:04,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:17:04,468 INFO L93 Difference]: Finished difference Result 11039 states and 11454 transitions. [2024-10-12 16:17:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:17:04,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 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 1115 [2024-10-12 16:17:04,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:17:04,470 INFO L225 Difference]: With dead ends: 11039 [2024-10-12 16:17:04,470 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 16:17:04,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2233 GetRequests, 2225 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-10-12 16:17:04,476 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 118 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:17:04,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 6 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 16:17:04,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 16:17:04,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 16:17:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:17:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 16:17:04,477 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1115 [2024-10-12 16:17:04,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:17:04,477 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 16:17:04,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:17:04,478 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 16:17:04,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 16:17:04,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 16:17:04,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-12 16:17:04,681 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,SelfDestructingSolverStorable21 [2024-10-12 16:17:04,685 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:17:04,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 16:17:05,264 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 16:17:05,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 04:17:05 BoogieIcfgContainer [2024-10-12 16:17:05,292 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 16:17:05,293 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 16:17:05,293 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 16:17:05,293 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 16:17:05,294 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:16:29" (3/4) ... [2024-10-12 16:17:05,296 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 16:17:05,320 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-12 16:17:05,321 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-12 16:17:05,322 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 16:17:05,323 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 16:17:05,490 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 16:17:05,491 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 16:17:05,491 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 16:17:05,492 INFO L158 Benchmark]: Toolchain (without parser) took 38803.43ms. Allocated memory was 163.6MB in the beginning and 1.0GB in the end (delta: 861.9MB). Free memory was 99.3MB in the beginning and 846.0MB in the end (delta: -746.7MB). Peak memory consumption was 114.0MB. Max. memory is 16.1GB. [2024-10-12 16:17:05,492 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory was 50.8MB in the beginning and 50.7MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 16:17:05,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.27ms. Allocated memory is still 163.6MB. Free memory was 99.0MB in the beginning and 110.4MB in the end (delta: -11.4MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-10-12 16:17:05,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.59ms. Allocated memory is still 163.6MB. Free memory was 110.4MB in the beginning and 100.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 16:17:05,495 INFO L158 Benchmark]: Boogie Preprocessor took 124.87ms. Allocated memory is still 163.6MB. Free memory was 100.6MB in the beginning and 88.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 16:17:05,495 INFO L158 Benchmark]: RCFGBuilder took 1564.26ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 88.0MB in the beginning and 134.3MB in the end (delta: -46.3MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2024-10-12 16:17:05,495 INFO L158 Benchmark]: TraceAbstraction took 36094.73ms. Allocated memory was 203.4MB in the beginning and 1.0GB in the end (delta: 822.1MB). Free memory was 133.3MB in the beginning and 860.7MB in the end (delta: -727.4MB). Peak memory consumption was 588.5MB. Max. memory is 16.1GB. [2024-10-12 16:17:05,496 INFO L158 Benchmark]: Witness Printer took 198.00ms. Allocated memory is still 1.0GB. Free memory was 860.7MB in the beginning and 846.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 16:17:05,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory was 50.8MB in the beginning and 50.7MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 706.27ms. Allocated memory is still 163.6MB. Free memory was 99.0MB in the beginning and 110.4MB in the end (delta: -11.4MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.59ms. Allocated memory is still 163.6MB. Free memory was 110.4MB in the beginning and 100.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.87ms. Allocated memory is still 163.6MB. Free memory was 100.6MB in the beginning and 88.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1564.26ms. Allocated memory was 163.6MB in the beginning and 203.4MB in the end (delta: 39.8MB). Free memory was 88.0MB in the beginning and 134.3MB in the end (delta: -46.3MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. * TraceAbstraction took 36094.73ms. Allocated memory was 203.4MB in the beginning and 1.0GB in the end (delta: 822.1MB). Free memory was 133.3MB in the beginning and 860.7MB in the end (delta: -727.4MB). Peak memory consumption was 588.5MB. Max. memory is 16.1GB. * Witness Printer took 198.00ms. Allocated memory is still 1.0GB. Free memory was 860.7MB in the beginning and 846.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 185]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 35.4s, OverallIterations: 22, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2288 SdHoareTripleChecker+Valid, 10.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2288 mSDsluCounter, 2870 SdHoareTripleChecker+Invalid, 9.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 1187 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10264 IncrementalHoareTripleChecker+Invalid, 11451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1187 mSolverCounterUnsat, 2777 mSDtfsCounter, 10264 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9446 GetRequests, 9385 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5877occurred in iteration=16, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 22 MinimizatonAttempts, 3738 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 15.5s InterpolantComputationTime, 20735 NumberOfCodeBlocks, 20735 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 21816 ConstructedInterpolants, 0 QuantifiedInterpolants, 65760 SizeOfPredicates, 0 NumberOfNonLiveVariables, 10216 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 34 InterpolantComputations, 22 PerfectInterpolantSequences, 56516/58225 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((((((a24 == 1) && (a21 == 9)) && (81 <= a12)) && (a12 <= 600060)) || (((a12 <= 11) && (a24 == 1)) && (10 <= a21))) || ((((a24 == 1) && (a21 <= 6)) && (0 <= ((long long) a12 + 42))) && (a12 <= 600060))) || ((((((long long) a12 + 48) < 0) && (a15 <= 8)) && (a24 <= 1)) && (10 <= a21))) || (((a15 <= 8) && (a21 <= 6)) && (((long long) 49 + a12) <= 0))) || (((a21 == 8) && (a24 == 1)) && (a12 <= 600060))) || (((a12 <= 80) && (a24 == 1)) && (a15 <= 8))) || ((((a24 == 1) && (81 <= a12)) && (8 <= a15)) && (a12 <= 600060))) || (((((a24 == 1) && (7 == a21)) && (0 <= ((long long) a12 + 42))) && (8 <= a15)) && (a12 <= 600060))) || ((((a24 == 1) && (a15 <= 8)) && (10 <= a21)) && (a12 <= 600060))) RESULT: Ultimate proved your program to be correct! [2024-10-12 16:17:05,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE