./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem10_label18.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 6e8254ecedecc9535504848892d4cb38230112d354b6a5568b33ee9f0c006af3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:47:42,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:47:42,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:47:42,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:47:42,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:47:42,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:47:42,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:47:42,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:47:42,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:47:42,723 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:47:42,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:47:42,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:47:42,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:47:42,726 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:47:42,727 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:47:42,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:47:42,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:47:42,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:47:42,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:47:42,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:47:42,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:47:42,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:47:42,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:47:42,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:47:42,734 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:47:42,734 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:47:42,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:47:42,735 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:47:42,735 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:47:42,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:47:42,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:47:42,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:47:42,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:47:42,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:47:42,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:47:42,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:47:42,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:47:42,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:47:42,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:47:42,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:47:42,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:47:42,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:47:42,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e8254ecedecc9535504848892d4cb38230112d354b6a5568b33ee9f0c006af3 [2024-11-16 03:47:43,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:47:43,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:47:43,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:47:43,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:47:43,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:47:43,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label18.c [2024-11-16 03:47:45,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:47:45,341 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:47:45,342 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label18.c [2024-11-16 03:47:45,366 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0132c1dcd/d296c6b8644f45ef82f1b0bad124fddb/FLAGdc70f6d8d [2024-11-16 03:47:45,669 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0132c1dcd/d296c6b8644f45ef82f1b0bad124fddb [2024-11-16 03:47:45,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:47:45,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:47:45,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:47:45,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:47:45,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:47:45,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:47:45" (1/1) ... [2024-11-16 03:47:45,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e30f652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:45, skipping insertion in model container [2024-11-16 03:47:45,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:47:45" (1/1) ... [2024-11-16 03:47:45,733 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:47:46,021 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label18.c[6668,6681] [2024-11-16 03:47:46,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:47:46,193 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:47:46,229 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label18.c[6668,6681] [2024-11-16 03:47:46,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:47:46,315 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:47:46,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46 WrapperNode [2024-11-16 03:47:46,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:47:46,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:47:46,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:47:46,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:47:46,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,398 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2024-11-16 03:47:46,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:47:46,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:47:46,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:47:46,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:47:46,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,417 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,445 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 03:47:46,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,477 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:47:46,510 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:47:46,511 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:47:46,511 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:47:46,512 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (1/1) ... [2024-11-16 03:47:46,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:47:46,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:47:46,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:47:46,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:47:46,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:47:46,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:47:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:47:46,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:47:46,681 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:47:46,683 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:47:47,817 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-16 03:47:47,818 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:47:47,839 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:47:47,839 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:47:47,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:47:47 BoogieIcfgContainer [2024-11-16 03:47:47,840 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:47:47,842 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:47:47,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:47:47,846 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:47:47,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:47:45" (1/3) ... [2024-11-16 03:47:47,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c50d6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:47:47, skipping insertion in model container [2024-11-16 03:47:47,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:47:46" (2/3) ... [2024-11-16 03:47:47,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c50d6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:47:47, skipping insertion in model container [2024-11-16 03:47:47,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:47:47" (3/3) ... [2024-11-16 03:47:47,851 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label18.c [2024-11-16 03:47:47,869 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:47:47,869 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:47:47,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:47:47,950 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;@26f7fdb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:47:47,951 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:47:47,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 207 states have (on average 1.6763285024154588) internal successors, (347), 208 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:47,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 03:47:47,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:47,969 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, 1, 1, 1, 1] [2024-11-16 03:47:47,969 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:47,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:47,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1671001642, now seen corresponding path program 1 times [2024-11-16 03:47:47,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:47,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915757363] [2024-11-16 03:47:47,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:47,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:47:48,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:48,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915757363] [2024-11-16 03:47:48,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915757363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:48,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:47:48,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:47:48,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474372514] [2024-11-16 03:47:48,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:48,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:47:48,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:48,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:47:48,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:47:48,426 INFO L87 Difference]: Start difference. First operand has 209 states, 207 states have (on average 1.6763285024154588) internal successors, (347), 208 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:49,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:49,235 INFO L93 Difference]: Finished difference Result 573 states and 987 transitions. [2024-11-16 03:47:49,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:47:49,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 03:47:49,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:49,248 INFO L225 Difference]: With dead ends: 573 [2024-11-16 03:47:49,249 INFO L226 Difference]: Without dead ends: 285 [2024-11-16 03:47:49,253 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 [2024-11-16 03:47:49,258 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 120 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:49,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 70 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:47:49,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-16 03:47:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-16 03:47:49,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.4612676056338028) internal successors, (415), 284 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:49,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 415 transitions. [2024-11-16 03:47:49,315 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 415 transitions. Word has length 60 [2024-11-16 03:47:49,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:49,316 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 415 transitions. [2024-11-16 03:47:49,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 415 transitions. [2024-11-16 03:47:49,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 03:47:49,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:49,322 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:47:49,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:47:49,323 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:49,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:49,323 INFO L85 PathProgramCache]: Analyzing trace with hash -122556002, now seen corresponding path program 1 times [2024-11-16 03:47:49,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:49,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727784260] [2024-11-16 03:47:49,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:49,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:47:49,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:49,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727784260] [2024-11-16 03:47:49,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727784260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:49,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:47:49,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:47:49,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579963966] [2024-11-16 03:47:49,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:49,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:47:49,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:49,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:47:49,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:47:49,650 INFO L87 Difference]: Start difference. First operand 285 states and 415 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:50,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:50,120 INFO L93 Difference]: Finished difference Result 848 states and 1239 transitions. [2024-11-16 03:47:50,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:47:50,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 131 [2024-11-16 03:47:50,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:50,124 INFO L225 Difference]: With dead ends: 848 [2024-11-16 03:47:50,124 INFO L226 Difference]: Without dead ends: 565 [2024-11-16 03:47:50,125 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 [2024-11-16 03:47:50,127 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 75 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:50,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 71 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:47:50,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-16 03:47:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2024-11-16 03:47:50,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 564 states have (on average 1.303191489361702) internal successors, (735), 564 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:50,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 735 transitions. [2024-11-16 03:47:50,160 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 735 transitions. Word has length 131 [2024-11-16 03:47:50,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:50,161 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 735 transitions. [2024-11-16 03:47:50,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:50,161 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 735 transitions. [2024-11-16 03:47:50,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-16 03:47:50,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:50,168 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:47:50,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:47:50,168 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:50,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:50,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1993383635, now seen corresponding path program 1 times [2024-11-16 03:47:50,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:50,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434949274] [2024-11-16 03:47:50,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:50,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:47:50,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:50,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434949274] [2024-11-16 03:47:50,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434949274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:50,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:47:50,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 03:47:50,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647783421] [2024-11-16 03:47:50,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:50,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 03:47:50,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:50,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 03:47:50,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:47:50,716 INFO L87 Difference]: Start difference. First operand 565 states and 735 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:51,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:51,216 INFO L93 Difference]: Finished difference Result 1184 states and 1524 transitions. [2024-11-16 03:47:51,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 03:47:51,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 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 136 [2024-11-16 03:47:51,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:51,220 INFO L225 Difference]: With dead ends: 1184 [2024-11-16 03:47:51,220 INFO L226 Difference]: Without dead ends: 565 [2024-11-16 03:47:51,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:47:51,227 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 143 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:51,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 30 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:47:51,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-16 03:47:51,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2024-11-16 03:47:51,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 564 states have (on average 1.2960992907801419) internal successors, (731), 564 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:51,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 731 transitions. [2024-11-16 03:47:51,258 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 731 transitions. Word has length 136 [2024-11-16 03:47:51,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:51,259 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 731 transitions. [2024-11-16 03:47:51,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:51,259 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 731 transitions. [2024-11-16 03:47:51,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-16 03:47:51,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:51,267 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:47:51,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:47:51,267 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:51,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:51,268 INFO L85 PathProgramCache]: Analyzing trace with hash -2117690107, now seen corresponding path program 1 times [2024-11-16 03:47:51,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:51,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001821839] [2024-11-16 03:47:51,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:51,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:47:51,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:51,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001821839] [2024-11-16 03:47:51,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001821839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:51,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:47:51,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:47:51,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96559793] [2024-11-16 03:47:51,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:51,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:47:51,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:51,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:47:51,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:47:51,460 INFO L87 Difference]: Start difference. First operand 565 states and 731 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:51,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:51,947 INFO L93 Difference]: Finished difference Result 1688 states and 2187 transitions. [2024-11-16 03:47:51,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:47:51,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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 152 [2024-11-16 03:47:51,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:51,952 INFO L225 Difference]: With dead ends: 1688 [2024-11-16 03:47:51,952 INFO L226 Difference]: Without dead ends: 1125 [2024-11-16 03:47:51,953 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 [2024-11-16 03:47:51,954 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 88 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:51,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 37 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:47:51,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2024-11-16 03:47:51,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 985. [2024-11-16 03:47:51,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 984 states have (on average 1.2693089430894309) internal successors, (1249), 984 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) [2024-11-16 03:47:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1249 transitions. [2024-11-16 03:47:51,977 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1249 transitions. Word has length 152 [2024-11-16 03:47:51,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:51,978 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1249 transitions. [2024-11-16 03:47:51,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:51,979 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1249 transitions. [2024-11-16 03:47:51,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-16 03:47:51,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:51,981 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, 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] [2024-11-16 03:47:51,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:47:51,981 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:51,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:51,982 INFO L85 PathProgramCache]: Analyzing trace with hash -965490297, now seen corresponding path program 1 times [2024-11-16 03:47:51,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:51,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191052898] [2024-11-16 03:47:51,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:51,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:47:52,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:52,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191052898] [2024-11-16 03:47:52,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191052898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:52,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:47:52,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:47:52,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701248084] [2024-11-16 03:47:52,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:52,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:47:52,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:52,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:47:52,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:47:52,205 INFO L87 Difference]: Start difference. First operand 985 states and 1249 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:52,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:52,644 INFO L93 Difference]: Finished difference Result 2108 states and 2645 transitions. [2024-11-16 03:47:52,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:47:52,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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 153 [2024-11-16 03:47:52,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:52,650 INFO L225 Difference]: With dead ends: 2108 [2024-11-16 03:47:52,651 INFO L226 Difference]: Without dead ends: 1125 [2024-11-16 03:47:52,652 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 [2024-11-16 03:47:52,654 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 49 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:52,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 86 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:47:52,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2024-11-16 03:47:52,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1125. [2024-11-16 03:47:52,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1124 states have (on average 1.23932384341637) internal successors, (1393), 1124 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1393 transitions. [2024-11-16 03:47:52,682 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1393 transitions. Word has length 153 [2024-11-16 03:47:52,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:52,683 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1393 transitions. [2024-11-16 03:47:52,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:52,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1393 transitions. [2024-11-16 03:47:52,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 03:47:52,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:52,686 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:47:52,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:47:52,686 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:52,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1866268627, now seen corresponding path program 1 times [2024-11-16 03:47:52,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:52,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398393066] [2024-11-16 03:47:52,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:52,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 03:47:52,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:52,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398393066] [2024-11-16 03:47:52,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398393066] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:47:52,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251199397] [2024-11-16 03:47:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:52,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:47:52,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:47:52,994 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:47:52,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:47:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:53,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:47:53,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:47:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 03:47:53,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:47:53,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251199397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:53,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:47:53,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:47:53,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959572988] [2024-11-16 03:47:53,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:53,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:47:53,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:53,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:47:53,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:47:53,360 INFO L87 Difference]: Start difference. First operand 1125 states and 1393 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:53,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:53,874 INFO L93 Difference]: Finished difference Result 1548 states and 1913 transitions. [2024-11-16 03:47:53,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:47:53,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2024-11-16 03:47:53,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:53,881 INFO L225 Difference]: With dead ends: 1548 [2024-11-16 03:47:53,881 INFO L226 Difference]: Without dead ends: 1545 [2024-11-16 03:47:53,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:47:53,883 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 69 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:53,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 15 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:47:53,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2024-11-16 03:47:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1265. [2024-11-16 03:47:53,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.2507911392405062) internal successors, (1581), 1264 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:53,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1581 transitions. [2024-11-16 03:47:53,917 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1581 transitions. Word has length 172 [2024-11-16 03:47:53,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:53,917 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 1581 transitions. [2024-11-16 03:47:53,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:53,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1581 transitions. [2024-11-16 03:47:53,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-16 03:47:53,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:53,921 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, 3, 3, 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] [2024-11-16 03:47:53,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:47:54,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 03:47:54,122 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:54,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:54,123 INFO L85 PathProgramCache]: Analyzing trace with hash -517054620, now seen corresponding path program 1 times [2024-11-16 03:47:54,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:54,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605866930] [2024-11-16 03:47:54,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:54,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:47:54,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:54,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605866930] [2024-11-16 03:47:54,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605866930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:54,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:47:54,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:47:54,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12706724] [2024-11-16 03:47:54,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:54,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:47:54,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:54,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:47:54,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:47:54,335 INFO L87 Difference]: Start difference. First operand 1265 states and 1581 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:54,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:54,817 INFO L93 Difference]: Finished difference Result 2808 states and 3574 transitions. [2024-11-16 03:47:54,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:47:54,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 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 222 [2024-11-16 03:47:54,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:54,823 INFO L225 Difference]: With dead ends: 2808 [2024-11-16 03:47:54,824 INFO L226 Difference]: Without dead ends: 1685 [2024-11-16 03:47:54,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:47:54,827 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:54,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 219 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:47:54,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2024-11-16 03:47:54,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1265. [2024-11-16 03:47:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.2436708860759493) internal successors, (1572), 1264 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:54,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1572 transitions. [2024-11-16 03:47:54,853 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1572 transitions. Word has length 222 [2024-11-16 03:47:54,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:54,853 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 1572 transitions. [2024-11-16 03:47:54,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:54,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1572 transitions. [2024-11-16 03:47:54,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 03:47:54,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:54,857 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:47:54,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:47:54,857 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:54,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:54,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1633648063, now seen corresponding path program 1 times [2024-11-16 03:47:54,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:54,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710074344] [2024-11-16 03:47:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:54,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:47:55,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:55,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710074344] [2024-11-16 03:47:55,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710074344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:55,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:47:55,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:47:55,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153903661] [2024-11-16 03:47:55,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:55,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:47:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:55,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:47:55,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:47:55,041 INFO L87 Difference]: Start difference. First operand 1265 states and 1572 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:55,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:55,531 INFO L93 Difference]: Finished difference Result 2808 states and 3556 transitions. [2024-11-16 03:47:55,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:47:55,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 251 [2024-11-16 03:47:55,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:55,537 INFO L225 Difference]: With dead ends: 2808 [2024-11-16 03:47:55,538 INFO L226 Difference]: Without dead ends: 1685 [2024-11-16 03:47:55,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:47:55,541 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 75 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:55,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 195 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:47:55,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2024-11-16 03:47:55,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1545. [2024-11-16 03:47:55,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.1683937823834196) internal successors, (1804), 1544 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:55,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1804 transitions. [2024-11-16 03:47:55,568 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1804 transitions. Word has length 251 [2024-11-16 03:47:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:55,569 INFO L471 AbstractCegarLoop]: Abstraction has 1545 states and 1804 transitions. [2024-11-16 03:47:55,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:55,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1804 transitions. [2024-11-16 03:47:55,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-16 03:47:55,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:55,573 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:47:55,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:47:55,574 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:55,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:55,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1399914875, now seen corresponding path program 1 times [2024-11-16 03:47:55,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:55,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196631761] [2024-11-16 03:47:55,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:55,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:55,929 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 23 proven. 90 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-16 03:47:55,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:55,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196631761] [2024-11-16 03:47:55,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196631761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:47:55,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192192615] [2024-11-16 03:47:55,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:55,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:47:55,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:47:55,935 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:47:55,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:47:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:56,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:47:56,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:47:56,173 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-16 03:47:56,173 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:47:56,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192192615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:56,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:47:56,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:47:56,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146972192] [2024-11-16 03:47:56,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:56,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:47:56,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:56,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:47:56,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:47:56,176 INFO L87 Difference]: Start difference. First operand 1545 states and 1804 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:56,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:56,653 INFO L93 Difference]: Finished difference Result 2248 states and 2629 transitions. [2024-11-16 03:47:56,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:47:56,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 310 [2024-11-16 03:47:56,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:56,661 INFO L225 Difference]: With dead ends: 2248 [2024-11-16 03:47:56,661 INFO L226 Difference]: Without dead ends: 2245 [2024-11-16 03:47:56,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:47:56,664 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 126 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:56,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 15 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:47:56,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2245 states. [2024-11-16 03:47:56,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2245 to 1545. [2024-11-16 03:47:56,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.1683937823834196) internal successors, (1804), 1544 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:56,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1804 transitions. [2024-11-16 03:47:56,697 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1804 transitions. Word has length 310 [2024-11-16 03:47:56,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:56,698 INFO L471 AbstractCegarLoop]: Abstraction has 1545 states and 1804 transitions. [2024-11-16 03:47:56,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:56,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1804 transitions. [2024-11-16 03:47:56,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-16 03:47:56,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:47:56,703 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, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:47:56,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 03:47:56,907 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,SelfDestructingSolverStorable8 [2024-11-16 03:47:56,908 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:47:56,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:47:56,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1995836474, now seen corresponding path program 1 times [2024-11-16 03:47:56,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:47:56,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655245599] [2024-11-16 03:47:56,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:56,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:47:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 89 proven. 81 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-11-16 03:47:57,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:47:57,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655245599] [2024-11-16 03:47:57,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655245599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:47:57,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847305201] [2024-11-16 03:47:57,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:47:57,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:47:57,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:47:57,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:47:57,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:47:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:47:57,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:47:57,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:47:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-11-16 03:47:57,574 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:47:57,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847305201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:47:57,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:47:57,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:47:57,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735152670] [2024-11-16 03:47:57,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:47:57,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:47:57,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:47:57,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:47:57,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:47:57,576 INFO L87 Difference]: Start difference. First operand 1545 states and 1804 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:58,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:47:58,028 INFO L93 Difference]: Finished difference Result 3225 states and 3828 transitions. [2024-11-16 03:47:58,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:47:58,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 362 [2024-11-16 03:47:58,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:47:58,030 INFO L225 Difference]: With dead ends: 3225 [2024-11-16 03:47:58,030 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:47:58,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:47:58,033 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 107 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:47:58,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 20 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:47:58,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:47:58,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:47:58,035 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) [2024-11-16 03:47:58,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:47:58,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2024-11-16 03:47:58,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:47:58,036 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:47:58,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:47:58,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:47:58,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:47:58,039 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:47:58,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:47:58,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:47:58,243 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:47:58,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:47:58,537 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:47:58,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:47:58 BoogieIcfgContainer [2024-11-16 03:47:58,557 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:47:58,558 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:47:58,558 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:47:58,558 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:47:58,558 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:47:47" (3/4) ... [2024-11-16 03:47:58,561 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:47:58,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:47:58,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:47:58,587 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:47:58,588 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:47:58,751 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:47:58,752 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:47:58,752 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:47:58,753 INFO L158 Benchmark]: Toolchain (without parser) took 13080.59ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 77.1MB in the beginning and 217.9MB in the end (delta: -140.8MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2024-11-16 03:47:58,753 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 113.7MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:47:58,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 642.15ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 76.7MB in the beginning and 126.8MB in the end (delta: -50.1MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-11-16 03:47:58,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.39ms. Allocated memory is still 180.4MB. Free memory was 126.8MB in the beginning and 118.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-16 03:47:58,755 INFO L158 Benchmark]: Boogie Preprocessor took 109.60ms. Allocated memory is still 180.4MB. Free memory was 118.5MB in the beginning and 109.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 03:47:58,755 INFO L158 Benchmark]: IcfgBuilder took 1329.79ms. Allocated memory is still 180.4MB. Free memory was 109.0MB in the beginning and 82.5MB in the end (delta: 26.5MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2024-11-16 03:47:58,755 INFO L158 Benchmark]: TraceAbstraction took 10714.81ms. Allocated memory was 180.4MB in the beginning and 318.8MB in the end (delta: 138.4MB). Free memory was 81.5MB in the beginning and 230.5MB in the end (delta: -149.1MB). Peak memory consumption was 97.4MB. Max. memory is 16.1GB. [2024-11-16 03:47:58,756 INFO L158 Benchmark]: Witness Printer took 195.02ms. Allocated memory is still 318.8MB. Free memory was 230.5MB in the beginning and 217.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 03:47:58,757 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 113.7MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 642.15ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 76.7MB in the beginning and 126.8MB in the end (delta: -50.1MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.39ms. Allocated memory is still 180.4MB. Free memory was 126.8MB in the beginning and 118.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.60ms. Allocated memory is still 180.4MB. Free memory was 118.5MB in the beginning and 109.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * IcfgBuilder took 1329.79ms. Allocated memory is still 180.4MB. Free memory was 109.0MB in the beginning and 82.5MB in the end (delta: 26.5MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. * TraceAbstraction took 10714.81ms. Allocated memory was 180.4MB in the beginning and 318.8MB in the end (delta: 138.4MB). Free memory was 81.5MB in the beginning and 230.5MB in the end (delta: -149.1MB). Peak memory consumption was 97.4MB. Max. memory is 16.1GB. * Witness Printer took 195.02ms. Allocated memory is still 318.8MB. Free memory was 230.5MB in the beginning and 217.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 188]: 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, 209 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 902 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 902 mSDsluCounter, 758 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 610 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3989 IncrementalHoareTripleChecker+Invalid, 4599 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 610 mSolverCounterUnsat, 685 mSDtfsCounter, 3989 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 872 GetRequests, 850 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1545occurred in iteration=8, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1680 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 2793 NumberOfCodeBlocks, 2793 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2780 ConstructedInterpolants, 0 QuantifiedInterpolants, 10547 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1150 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 1794/2010 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: 592]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:47:58,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE