./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea5fa9597dfb355e2134f9e9e075c4e3ca829d1649455c17a870875ad29bc269 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 09:28:29,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 09:28:29,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 09:28:29,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 09:28:29,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 09:28:29,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 09:28:29,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 09:28:29,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 09:28:29,565 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 09:28:29,565 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 09:28:29,565 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 09:28:29,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 09:28:29,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 09:28:29,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 09:28:29,569 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 09:28:29,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 09:28:29,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 09:28:29,570 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 09:28:29,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 09:28:29,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 09:28:29,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 09:28:29,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 09:28:29,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 09:28:29,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 09:28:29,575 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 09:28:29,575 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 09:28:29,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 09:28:29,576 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 09:28:29,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 09:28:29,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 09:28:29,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 09:28:29,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 09:28:29,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:28:29,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 09:28:29,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 09:28:29,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 09:28:29,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 09:28:29,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 09:28:29,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 09:28:29,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 09:28:29,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 09:28:29,581 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 09:28:29,581 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea5fa9597dfb355e2134f9e9e075c4e3ca829d1649455c17a870875ad29bc269 [2024-10-24 09:28:29,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 09:28:29,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 09:28:29,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 09:28:29,856 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 09:28:29,857 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 09:28:29,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i [2024-10-24 09:28:31,250 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:28:31,441 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:28:31,441 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i [2024-10-24 09:28:31,450 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6334492/b2e7e8b0183741eb8e9eb3588e4cd5f5/FLAG186166f0c [2024-10-24 09:28:31,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd6334492/b2e7e8b0183741eb8e9eb3588e4cd5f5 [2024-10-24 09:28:31,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:28:31,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:28:31,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:28:31,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:28:31,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:28:31,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7782ae62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31, skipping insertion in model container [2024-10-24 09:28:31,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:28:31,697 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i[915,928] [2024-10-24 09:28:31,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:28:31,756 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:28:31,765 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-56.i[915,928] [2024-10-24 09:28:31,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:28:31,809 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:28:31,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31 WrapperNode [2024-10-24 09:28:31,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:28:31,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:28:31,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:28:31,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:28:31,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,892 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2024-10-24 09:28:31,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:28:31,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:28:31,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:28:31,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:28:31,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,934 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 09:28:31,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:28:31,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:28:31,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:28:31,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:28:31,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (1/1) ... [2024-10-24 09:28:31,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:28:31,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:28:31,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 09:28:32,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 09:28:32,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:28:32,051 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:28:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:28:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 09:28:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:28:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:28:32,131 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:28:32,141 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:28:32,437 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-10-24 09:28:32,437 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:28:32,477 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:28:32,477 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:28:32,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:28:32 BoogieIcfgContainer [2024-10-24 09:28:32,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:28:32,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:28:32,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:28:32,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:28:32,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:28:31" (1/3) ... [2024-10-24 09:28:32,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16aac000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:28:32, skipping insertion in model container [2024-10-24 09:28:32,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:28:31" (2/3) ... [2024-10-24 09:28:32,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16aac000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:28:32, skipping insertion in model container [2024-10-24 09:28:32,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:28:32" (3/3) ... [2024-10-24 09:28:32,493 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-56.i [2024-10-24 09:28:32,510 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:28:32,510 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:28:32,567 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:28:32,574 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;@2d936c28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:28:32,574 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:28:32,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 28 states have internal predecessors, (39), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 09:28:32,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 09:28:32,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:28:32,591 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:28:32,592 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:28:32,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:28:32,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1436307667, now seen corresponding path program 1 times [2024-10-24 09:28:32,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:28:32,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055249141] [2024-10-24 09:28:32,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:28:32,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:28:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:28:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:28:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:28:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:28:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:28:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:28:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:28:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:28:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:28:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:28:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:32,907 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-24 09:28:32,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:28:32,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055249141] [2024-10-24 09:28:32,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055249141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:28:32,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:28:32,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 09:28:32,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015718903] [2024-10-24 09:28:32,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:28:32,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 09:28:32,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:28:32,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 09:28:32,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:28:32,947 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 28 states have internal predecessors, (39), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 09:28:32,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:28:32,987 INFO L93 Difference]: Finished difference Result 79 states and 127 transitions. [2024-10-24 09:28:32,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 09:28:32,991 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2024-10-24 09:28:32,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:28:32,998 INFO L225 Difference]: With dead ends: 79 [2024-10-24 09:28:32,999 INFO L226 Difference]: Without dead ends: 38 [2024-10-24 09:28:33,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:28:33,010 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:28:33,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:28:33,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-10-24 09:28:33,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-10-24 09:28:33,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 09:28:33,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2024-10-24 09:28:33,049 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 68 [2024-10-24 09:28:33,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:28:33,050 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2024-10-24 09:28:33,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-24 09:28:33,051 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2024-10-24 09:28:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 09:28:33,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:28:33,054 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:28:33,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 09:28:33,055 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:28:33,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:28:33,056 INFO L85 PathProgramCache]: Analyzing trace with hash -395484653, now seen corresponding path program 1 times [2024-10-24 09:28:33,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:28:33,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442557034] [2024-10-24 09:28:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:28:33,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:28:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:28:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:28:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:28:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:28:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:28:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:28:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:28:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:28:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:28:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:28:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-24 09:28:33,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:28:33,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442557034] [2024-10-24 09:28:33,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442557034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:28:33,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:28:33,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 09:28:33,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086877699] [2024-10-24 09:28:33,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:28:33,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:28:33,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:28:33,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:28:33,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:28:33,779 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-24 09:28:33,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:28:33,996 INFO L93 Difference]: Finished difference Result 111 states and 159 transitions. [2024-10-24 09:28:33,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 09:28:33,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 68 [2024-10-24 09:28:33,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:28:34,000 INFO L225 Difference]: With dead ends: 111 [2024-10-24 09:28:34,001 INFO L226 Difference]: Without dead ends: 74 [2024-10-24 09:28:34,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 09:28:34,004 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 31 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:28:34,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 148 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:28:34,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-10-24 09:28:34,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2024-10-24 09:28:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 45 states have internal predecessors, (57), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 09:28:34,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 97 transitions. [2024-10-24 09:28:34,034 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 97 transitions. Word has length 68 [2024-10-24 09:28:34,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:28:34,035 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 97 transitions. [2024-10-24 09:28:34,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-24 09:28:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 97 transitions. [2024-10-24 09:28:34,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 09:28:34,037 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:28:34,038 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:28:34,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 09:28:34,038 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:28:34,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:28:34,039 INFO L85 PathProgramCache]: Analyzing trace with hash -788511663, now seen corresponding path program 1 times [2024-10-24 09:28:34,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:28:34,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745390118] [2024-10-24 09:28:34,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:28:34,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:28:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:28:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:28:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:28:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:28:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:28:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:28:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:28:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:28:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:28:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:28:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-24 09:28:36,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:28:36,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745390118] [2024-10-24 09:28:36,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745390118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:28:36,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:28:36,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 09:28:36,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103733432] [2024-10-24 09:28:36,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:28:36,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 09:28:36,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:28:36,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 09:28:36,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 09:28:36,376 INFO L87 Difference]: Start difference. First operand 68 states and 97 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-24 09:28:37,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:28:37,536 INFO L93 Difference]: Finished difference Result 101 states and 141 transitions. [2024-10-24 09:28:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 09:28:37,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 68 [2024-10-24 09:28:37,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:28:37,540 INFO L225 Difference]: With dead ends: 101 [2024-10-24 09:28:37,542 INFO L226 Difference]: Without dead ends: 99 [2024-10-24 09:28:37,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:28:37,543 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 27 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:28:37,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 219 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 09:28:37,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-24 09:28:37,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 84. [2024-10-24 09:28:37,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 61 states have internal predecessors, (80), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 09:28:37,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2024-10-24 09:28:37,563 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 68 [2024-10-24 09:28:37,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:28:37,564 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2024-10-24 09:28:37,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-24 09:28:37,564 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2024-10-24 09:28:37,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 09:28:37,565 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:28:37,566 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:28:37,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 09:28:37,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:28:37,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:28:37,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1943435865, now seen corresponding path program 1 times [2024-10-24 09:28:37,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:28:37,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12766386] [2024-10-24 09:28:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:28:37,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:28:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:28:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:28:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:28:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:28:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:28:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:28:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:28:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:28:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:28:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:28:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:39,296 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-24 09:28:39,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:28:39,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12766386] [2024-10-24 09:28:39,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12766386] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:28:39,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:28:39,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 09:28:39,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730733251] [2024-10-24 09:28:39,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:28:39,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 09:28:39,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:28:39,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 09:28:39,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 09:28:39,300 INFO L87 Difference]: Start difference. First operand 84 states and 120 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-24 09:28:40,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:28:40,038 INFO L93 Difference]: Finished difference Result 114 states and 159 transitions. [2024-10-24 09:28:40,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 09:28:40,039 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2024-10-24 09:28:40,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:28:40,040 INFO L225 Difference]: With dead ends: 114 [2024-10-24 09:28:40,042 INFO L226 Difference]: Without dead ends: 112 [2024-10-24 09:28:40,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:28:40,043 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 25 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 09:28:40,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 198 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 09:28:40,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-24 09:28:40,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 85. [2024-10-24 09:28:40,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 62 states have internal predecessors, (82), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 09:28:40,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 122 transitions. [2024-10-24 09:28:40,062 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 122 transitions. Word has length 69 [2024-10-24 09:28:40,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:28:40,062 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 122 transitions. [2024-10-24 09:28:40,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-24 09:28:40,063 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 122 transitions. [2024-10-24 09:28:40,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 09:28:40,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:28:40,064 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:28:40,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 09:28:40,064 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:28:40,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:28:40,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1542184805, now seen corresponding path program 1 times [2024-10-24 09:28:40,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:28:40,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661023990] [2024-10-24 09:28:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:28:40,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:28:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:28:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:28:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:28:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:28:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:28:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:28:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:28:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:28:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:28:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:28:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-24 09:28:41,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:28:41,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661023990] [2024-10-24 09:28:41,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661023990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:28:41,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:28:41,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 09:28:41,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797438178] [2024-10-24 09:28:41,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:28:41,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 09:28:41,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:28:41,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 09:28:41,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 09:28:41,712 INFO L87 Difference]: Start difference. First operand 85 states and 122 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-24 09:28:42,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:28:42,247 INFO L93 Difference]: Finished difference Result 112 states and 157 transitions. [2024-10-24 09:28:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 09:28:42,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2024-10-24 09:28:42,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:28:42,249 INFO L225 Difference]: With dead ends: 112 [2024-10-24 09:28:42,249 INFO L226 Difference]: Without dead ends: 110 [2024-10-24 09:28:42,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:28:42,250 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 22 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 09:28:42,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 208 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 09:28:42,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-24 09:28:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 80. [2024-10-24 09:28:42,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 57 states have internal predecessors, (75), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 09:28:42,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2024-10-24 09:28:42,266 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 69 [2024-10-24 09:28:42,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:28:42,266 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2024-10-24 09:28:42,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-10-24 09:28:42,267 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2024-10-24 09:28:42,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 09:28:42,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:28:42,272 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:28:42,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 09:28:42,272 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:28:42,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:28:42,273 INFO L85 PathProgramCache]: Analyzing trace with hash 750450046, now seen corresponding path program 1 times [2024-10-24 09:28:42,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:28:42,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867274348] [2024-10-24 09:28:42,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:28:42,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:28:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:28:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:28:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:28:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:28:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:28:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:28:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:28:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:28:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:28:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:28:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 09:28:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 09:28:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 09:28:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 09:28:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 09:28:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 09:28:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 09:28:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 09:28:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 09:28:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:28:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,451 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 09:28:42,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:28:42,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867274348] [2024-10-24 09:28:42,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867274348] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 09:28:42,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55252995] [2024-10-24 09:28:42,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:28:42,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 09:28:42,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:28:42,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 09:28:42,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 09:28:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:28:42,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 09:28:42,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 09:28:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 426 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-10-24 09:28:42,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 09:28:42,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55252995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:28:42,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 09:28:42,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-10-24 09:28:42,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296155806] [2024-10-24 09:28:42,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:28:42,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:28:42,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:28:42,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:28:42,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:28:42,655 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 09:28:42,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:28:42,690 INFO L93 Difference]: Finished difference Result 84 states and 119 transitions. [2024-10-24 09:28:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:28:42,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 135 [2024-10-24 09:28:42,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:28:42,691 INFO L225 Difference]: With dead ends: 84 [2024-10-24 09:28:42,691 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 09:28:42,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:28:42,693 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 6 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:28:42,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 76 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:28:42,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 09:28:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 09:28:42,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 09:28:42,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 09:28:42,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2024-10-24 09:28:42,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:28:42,698 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 09:28:42,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 09:28:42,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 09:28:42,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 09:28:42,701 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 09:28:42,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 09:28:42,903 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 [2024-10-24 09:28:42,906 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-24 09:28:42,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 09:28:43,062 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 09:28:43,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:28:43 BoogieIcfgContainer [2024-10-24 09:28:43,094 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 09:28:43,095 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 09:28:43,095 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 09:28:43,095 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 09:28:43,097 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:28:32" (3/4) ... [2024-10-24 09:28:43,098 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 09:28:43,102 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-24 09:28:43,106 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-24 09:28:43,107 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-24 09:28:43,107 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 09:28:43,107 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 09:28:43,204 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 09:28:43,205 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 09:28:43,205 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 09:28:43,206 INFO L158 Benchmark]: Toolchain (without parser) took 11735.77ms. Allocated memory was 121.6MB in the beginning and 295.7MB in the end (delta: 174.1MB). Free memory was 54.8MB in the beginning and 148.1MB in the end (delta: -93.3MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2024-10-24 09:28:43,206 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 121.6MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 09:28:43,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.68ms. Allocated memory was 121.6MB in the beginning and 199.2MB in the end (delta: 77.6MB). Free memory was 54.5MB in the beginning and 163.1MB in the end (delta: -108.5MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-10-24 09:28:43,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.41ms. Allocated memory is still 199.2MB. Free memory was 163.1MB in the beginning and 160.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 09:28:43,207 INFO L158 Benchmark]: Boogie Preprocessor took 65.03ms. Allocated memory is still 199.2MB. Free memory was 160.0MB in the beginning and 155.8MB in the end (delta: 4.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 09:28:43,207 INFO L158 Benchmark]: RCFGBuilder took 519.01ms. Allocated memory is still 199.2MB. Free memory was 155.8MB in the beginning and 133.7MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 09:28:43,207 INFO L158 Benchmark]: TraceAbstraction took 10611.28ms. Allocated memory was 199.2MB in the beginning and 295.7MB in the end (delta: 96.5MB). Free memory was 132.7MB in the beginning and 153.4MB in the end (delta: -20.7MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. [2024-10-24 09:28:43,208 INFO L158 Benchmark]: Witness Printer took 109.84ms. Allocated memory is still 295.7MB. Free memory was 153.4MB in the beginning and 148.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 09:28:43,209 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 121.6MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.68ms. Allocated memory was 121.6MB in the beginning and 199.2MB in the end (delta: 77.6MB). Free memory was 54.5MB in the beginning and 163.1MB in the end (delta: -108.5MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.41ms. Allocated memory is still 199.2MB. Free memory was 163.1MB in the beginning and 160.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.03ms. Allocated memory is still 199.2MB. Free memory was 160.0MB in the beginning and 155.8MB in the end (delta: 4.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 519.01ms. Allocated memory is still 199.2MB. Free memory was 155.8MB in the beginning and 133.7MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10611.28ms. Allocated memory was 199.2MB in the beginning and 295.7MB in the end (delta: 96.5MB). Free memory was 132.7MB in the beginning and 153.4MB in the end (delta: -20.7MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. * Witness Printer took 109.84ms. Allocated memory is still 295.7MB. Free memory was 153.4MB in the beginning and 148.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. 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: 19]: 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 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.4s, OverallIterations: 6, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 900 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 637 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 721 IncrementalHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 263 mSDtfsCounter, 721 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 340 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=4, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 78 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 612 NumberOfCodeBlocks, 612 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 605 ConstructedInterpolants, 0 QuantifiedInterpolants, 2425 SizeOfPredicates, 0 NumberOfNonLiveVariables, 311 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 2471/2472 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: 86]: Loop Invariant Derived loop invariant: ((((((var_1_1 == 1) && (last_1_var_1_1 == 1)) && (k_loop == 0)) && (var_1_11 == 0)) && (last_1_var_1_11 == 0)) || (0 < k_loop)) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: ((((var_1_1 == 1) && (last_1_var_1_1 == 1)) && (var_1_11 == 0)) && (last_1_var_1_11 == 0)) Ensures: (((((var_1_1 == 1) && (last_1_var_1_1 == 1)) && (var_1_11 == 0)) && (last_1_var_1_11 == 0)) && ((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (last_1_var_1_1 == \old(last_1_var_1_1))) && (last_1_var_1_11 == \old(last_1_var_1_11)))) RESULT: Ultimate proved your program to be correct! [2024-10-24 09:28:43,247 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