./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.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 7ec09e5648980bc5a4329f49d7e2504b195b194638f2d82967f3c7db0031611d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:22:11,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:22:11,654 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:22:11,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:22:11,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:22:11,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:22:11,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:22:11,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:22:11,685 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:22:11,686 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:22:11,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:22:11,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:22:11,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:22:11,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:22:11,688 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:22:11,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:22:11,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:22:11,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:22:11,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:22:11,692 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:22:11,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:22:11,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:22:11,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:22:11,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:22:11,694 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:22:11,694 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:22:11,694 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:22:11,694 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:22:11,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:22:11,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:22:11,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:22:11,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:22:11,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:22:11,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:22:11,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:22:11,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:22:11,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:22:11,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:22:11,696 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:22:11,696 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:22:11,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:22:11,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:22:11,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ec09e5648980bc5a4329f49d7e2504b195b194638f2d82967f3c7db0031611d [2024-11-22 12:22:11,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:22:11,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:22:11,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:22:11,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:22:11,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:22:11,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.i [2024-11-22 12:22:13,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:22:13,506 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:22:13,506 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.i [2024-11-22 12:22:13,513 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8704123/3ce48cb2c8e749dc96d54e886078d2e9/FLAG7ab5556df [2024-11-22 12:22:13,904 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8704123/3ce48cb2c8e749dc96d54e886078d2e9 [2024-11-22 12:22:13,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:22:13,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:22:13,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:22:13,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:22:13,914 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:22:13,915 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:22:13" (1/1) ... [2024-11-22 12:22:13,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746e2c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:13, skipping insertion in model container [2024-11-22 12:22:13,916 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:22:13" (1/1) ... [2024-11-22 12:22:13,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:22:14,081 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.i[913,926] [2024-11-22 12:22:14,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:22:14,141 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:22:14,150 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.i[913,926] [2024-11-22 12:22:14,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:22:14,211 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:22:14,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14 WrapperNode [2024-11-22 12:22:14,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:22:14,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:22:14,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:22:14,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:22:14,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,264 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2024-11-22 12:22:14,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:22:14,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:22:14,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:22:14,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:22:14,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,276 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,286 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 12:22:14,287 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,287 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:22:14,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:22:14,299 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:22:14,299 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:22:14,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (1/1) ... [2024-11-22 12:22:14,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:22:14,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:22:14,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 12:22:14,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 12:22:14,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:22:14,368 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:22:14,369 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:22:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:22:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:22:14,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:22:14,445 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:22:14,448 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:22:14,675 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-22 12:22:14,675 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:22:14,691 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:22:14,691 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:22:14,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:22:14 BoogieIcfgContainer [2024-11-22 12:22:14,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:22:14,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:22:14,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:22:14,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:22:14,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:22:13" (1/3) ... [2024-11-22 12:22:14,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba74382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:22:14, skipping insertion in model container [2024-11-22 12:22:14,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:14" (2/3) ... [2024-11-22 12:22:14,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba74382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:22:14, skipping insertion in model container [2024-11-22 12:22:14,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:22:14" (3/3) ... [2024-11-22 12:22:14,707 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-35.i [2024-11-22 12:22:14,724 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:22:14,724 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:22:14,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:22:14,787 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;@33ea50bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:22:14,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:22:14,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:22:14,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:22:14,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:22:14,801 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:22:14,802 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:22:14,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:22:14,806 INFO L85 PathProgramCache]: Analyzing trace with hash -232387294, now seen corresponding path program 1 times [2024-11-22 12:22:14,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:22:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512695995] [2024-11-22 12:22:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:14,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:22:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:22:15,070 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-22 12:22:15,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:22:15,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512695995] [2024-11-22 12:22:15,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512695995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:22:15,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468679262] [2024-11-22 12:22:15,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:15,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:22:15,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:22:15,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:22:15,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:22:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:22:15,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:22:15,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:22:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-22 12:22:15,189 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:22:15,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468679262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:22:15,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:22:15,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:22:15,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896433039] [2024-11-22 12:22:15,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:22:15,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:22:15,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:22:15,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:22:15,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:22:15,245 INFO L87 Difference]: Start difference. First operand has 54 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 12:22:15,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:22:15,290 INFO L93 Difference]: Finished difference Result 101 states and 172 transitions. [2024-11-22 12:22:15,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:22:15,295 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 115 [2024-11-22 12:22:15,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:22:15,302 INFO L225 Difference]: With dead ends: 101 [2024-11-22 12:22:15,302 INFO L226 Difference]: Without dead ends: 50 [2024-11-22 12:22:15,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:22:15,308 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:22:15,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:22:15,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-22 12:22:15,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-22 12:22:15,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:22:15,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 73 transitions. [2024-11-22 12:22:15,342 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 73 transitions. Word has length 115 [2024-11-22 12:22:15,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:22:15,343 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 73 transitions. [2024-11-22 12:22:15,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 12:22:15,344 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions. [2024-11-22 12:22:15,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:22:15,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:22:15,348 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:22:15,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 12:22:15,548 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,SelfDestructingSolverStorable0 [2024-11-22 12:22:15,550 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:22:15,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:22:15,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1342920990, now seen corresponding path program 1 times [2024-11-22 12:22:15,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:22:15,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771917028] [2024-11-22 12:22:15,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:15,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:22:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:22:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:22:15,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:22:15,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771917028] [2024-11-22 12:22:15,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771917028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:22:15,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:22:15,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:22:15,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713758160] [2024-11-22 12:22:15,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:22:15,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:22:15,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:22:15,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:22:15,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:22:15,731 INFO L87 Difference]: Start difference. First operand 50 states and 73 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:22:15,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:22:15,769 INFO L93 Difference]: Finished difference Result 142 states and 209 transitions. [2024-11-22 12:22:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:22:15,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-22 12:22:15,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:22:15,772 INFO L225 Difference]: With dead ends: 142 [2024-11-22 12:22:15,772 INFO L226 Difference]: Without dead ends: 95 [2024-11-22 12:22:15,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:22:15,774 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 66 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:22:15,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 136 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:22:15,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-22 12:22:15,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 51. [2024-11-22 12:22:15,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:22:15,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2024-11-22 12:22:15,787 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 115 [2024-11-22 12:22:15,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:22:15,791 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2024-11-22 12:22:15,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:22:15,792 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2024-11-22 12:22:15,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:22:15,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:22:15,797 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:22:15,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:22:15,797 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:22:15,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:22:15,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1400179292, now seen corresponding path program 1 times [2024-11-22 12:22:15,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:22:15,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81524276] [2024-11-22 12:22:15,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:15,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:22:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:22:15,912 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:22:15,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:22:15,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81524276] [2024-11-22 12:22:15,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81524276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:22:15,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:22:15,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:22:15,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624455166] [2024-11-22 12:22:15,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:22:15,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:22:15,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:22:15,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:22:15,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:22:15,914 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:22:15,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:22:15,933 INFO L93 Difference]: Finished difference Result 99 states and 143 transitions. [2024-11-22 12:22:15,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:22:15,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-22 12:22:15,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:22:15,936 INFO L225 Difference]: With dead ends: 99 [2024-11-22 12:22:15,937 INFO L226 Difference]: Without dead ends: 51 [2024-11-22 12:22:15,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:22:15,939 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 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 [2024-11-22 12:22:15,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:22:15,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-22 12:22:15,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-22 12:22:15,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:22:15,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2024-11-22 12:22:15,949 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 115 [2024-11-22 12:22:15,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:22:15,950 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2024-11-22 12:22:15,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:22:15,951 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2024-11-22 12:22:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:22:15,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:22:15,953 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:22:15,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:22:15,954 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:22:15,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:22:15,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1793206302, now seen corresponding path program 1 times [2024-11-22 12:22:15,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:22:15,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043450242] [2024-11-22 12:22:15,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:15,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:22:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:22:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-22 12:22:16,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:22:16,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043450242] [2024-11-22 12:22:16,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043450242] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:22:16,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696219937] [2024-11-22 12:22:16,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:16,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:22:16,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:22:16,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:22:16,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:22:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:22:16,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 12:22:16,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:22:16,636 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 303 proven. 18 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-22 12:22:16,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:22:16,922 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-22 12:22:16,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696219937] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:22:16,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 12:22:16,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-22 12:22:16,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16263994] [2024-11-22 12:22:16,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 12:22:16,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:22:16,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:22:16,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:22:16,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:22:16,925 INFO L87 Difference]: Start difference. First operand 51 states and 72 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 12:22:17,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:22:17,349 INFO L93 Difference]: Finished difference Result 214 states and 292 transitions. [2024-11-22 12:22:17,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 12:22:17,351 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 115 [2024-11-22 12:22:17,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:22:17,353 INFO L225 Difference]: With dead ends: 214 [2024-11-22 12:22:17,353 INFO L226 Difference]: Without dead ends: 166 [2024-11-22 12:22:17,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 227 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2024-11-22 12:22:17,357 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 202 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:22:17,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 223 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:22:17,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-22 12:22:17,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 56. [2024-11-22 12:22:17,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:22:17,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 76 transitions. [2024-11-22 12:22:17,377 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 76 transitions. Word has length 115 [2024-11-22 12:22:17,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:22:17,379 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 76 transitions. [2024-11-22 12:22:17,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 12:22:17,379 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 76 transitions. [2024-11-22 12:22:17,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:22:17,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:22:17,382 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:22:17,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 12:22:17,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-22 12:22:17,587 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:22:17,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:22:17,588 INFO L85 PathProgramCache]: Analyzing trace with hash -726753632, now seen corresponding path program 1 times [2024-11-22 12:22:17,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:22:17,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464101893] [2024-11-22 12:22:17,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:17,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:22:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 12:22:17,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 12:22:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 12:22:17,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 12:22:17,680 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 12:22:17,680 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 12:22:17,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:22:17,684 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-22 12:22:17,739 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 12:22:17,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:22:17 BoogieIcfgContainer [2024-11-22 12:22:17,742 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 12:22:17,743 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 12:22:17,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 12:22:17,743 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 12:22:17,743 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:22:14" (3/4) ... [2024-11-22 12:22:17,745 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-22 12:22:17,746 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 12:22:17,747 INFO L158 Benchmark]: Toolchain (without parser) took 3839.09ms. Allocated memory was 138.4MB in the beginning and 211.8MB in the end (delta: 73.4MB). Free memory was 68.6MB in the beginning and 85.1MB in the end (delta: -16.5MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2024-11-22 12:22:17,747 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory was 101.6MB in the beginning and 101.4MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 12:22:17,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.27ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 68.4MB in the beginning and 145.0MB in the end (delta: -76.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-11-22 12:22:17,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.00ms. Allocated memory is still 176.2MB. Free memory was 145.0MB in the beginning and 144.7MB in the end (delta: 330.6kB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-11-22 12:22:17,748 INFO L158 Benchmark]: Boogie Preprocessor took 33.52ms. Allocated memory is still 176.2MB. Free memory was 144.7MB in the beginning and 140.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 12:22:17,748 INFO L158 Benchmark]: RCFGBuilder took 392.78ms. Allocated memory is still 176.2MB. Free memory was 140.6MB in the beginning and 123.9MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-22 12:22:17,748 INFO L158 Benchmark]: TraceAbstraction took 3044.78ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 123.7MB in the beginning and 85.1MB in the end (delta: 38.6MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2024-11-22 12:22:17,749 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 211.8MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 12:22:17,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory was 101.6MB in the beginning and 101.4MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.27ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 68.4MB in the beginning and 145.0MB in the end (delta: -76.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.00ms. Allocated memory is still 176.2MB. Free memory was 145.0MB in the beginning and 144.7MB in the end (delta: 330.6kB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.52ms. Allocated memory is still 176.2MB. Free memory was 144.7MB in the beginning and 140.6MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 392.78ms. Allocated memory is still 176.2MB. Free memory was 140.6MB in the beginning and 123.9MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3044.78ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 123.7MB in the beginning and 85.1MB in the end (delta: 38.6MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 211.8MB. Free memory is still 85.1MB. There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of someUnaryDOUBLEoperation at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 4.8; [L23] float var_1_4 = 255.1; [L24] float var_1_5 = -0.6; [L25] signed short int var_1_6 = -10; [L26] unsigned char var_1_8 = 1; [L27] signed char var_1_11 = -2; [L28] signed char var_1_12 = 10; [L29] signed char var_1_13 = 5; [L30] signed char var_1_14 = -1; [L31] unsigned char var_1_15 = 1; [L32] unsigned char var_1_16 = 0; [L33] unsigned char var_1_17 = 1; [L34] unsigned char var_1_18 = 5; [L35] unsigned char var_1_19 = 64; [L36] unsigned char var_1_20 = 5; [L37] unsigned char last_1_var_1_18 = 5; VAL [isInitial=0, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_4=2551/10, var_1_6=-10, var_1_8=1] [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] CALL updateLastVariables() [L100] last_1_var_1_18 = var_1_18 VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_4=2551/10, var_1_6=-10, var_1_8=1] [L110] RET updateLastVariables() [L111] CALL updateVariables() [L70] var_1_4 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_4 >= -461168.6018427382800e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=1] [L71] RET assume_abort_if_not((var_1_4 >= -461168.6018427382800e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 4611686.018427382800e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=1] [L72] var_1_5 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=1] [L73] RET assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=1] [L74] var_1_8 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10] [L75] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10] [L76] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L76] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=10, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L77] var_1_12 = __VERIFIER_nondet_char() [L78] CALL assume_abort_if_not(var_1_12 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L78] RET assume_abort_if_not(var_1_12 >= -31) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L79] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L79] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=5, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L80] var_1_13 = __VERIFIER_nondet_char() [L81] CALL assume_abort_if_not(var_1_13 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L81] RET assume_abort_if_not(var_1_13 >= -31) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L82] CALL assume_abort_if_not(var_1_13 <= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L82] RET assume_abort_if_not(var_1_13 <= 31) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-1, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L83] var_1_14 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_14 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L84] RET assume_abort_if_not(var_1_14 >= -63) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L85] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L85] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L86] var_1_16 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L87] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L88] CALL assume_abort_if_not(var_1_16 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L88] RET assume_abort_if_not(var_1_16 <= 0) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L89] var_1_17 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L90] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L91] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L91] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=64, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L92] var_1_19 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_19 >= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L93] RET assume_abort_if_not(var_1_19 >= 32) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L94] CALL assume_abort_if_not(var_1_19 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L94] RET assume_abort_if_not(var_1_19 <= 64) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_20=5, var_1_6=-10, var_1_8=0] [L95] var_1_20 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_6=-10, var_1_8=0] [L96] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_6=-10, var_1_8=0] [L97] CALL assume_abort_if_not(var_1_20 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_20=32, var_1_6=-10, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_20=32, var_1_6=-10, var_1_8=0] [L97] RET assume_abort_if_not(var_1_20 <= 32) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_20=32, var_1_6=-10, var_1_8=0] [L111] RET updateVariables() [L112] CALL step() [L41] signed long int stepLocal_0 = ~ last_1_var_1_18; VAL [isInitial=1, last_1_var_1_18=5, stepLocal_0=-6, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_1=24/5, var_1_20=32, var_1_6=-10, var_1_8=0] [L42] COND TRUE last_1_var_1_18 >= stepLocal_0 [L43] var_1_1 = (var_1_4 + var_1_5) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_20=32, var_1_6=-10, var_1_8=0] [L45] unsigned char stepLocal_1 = (var_1_1 * var_1_5) >= var_1_4; VAL [isInitial=1, last_1_var_1_18=5, stepLocal_1=1, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=5, var_1_19=-8128, var_1_20=32, var_1_6=-10, var_1_8=0] [L46] COND TRUE var_1_17 && stepLocal_1 [L47] var_1_18 = (2 + ((var_1_19 - var_1_20) + 32)) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=1, var_1_16=0, var_1_17=1, var_1_18=66, var_1_19=-8128, var_1_20=32, var_1_6=-10, var_1_8=0] [L51] COND FALSE !(\read(var_1_8)) [L54] var_1_15 = (! var_1_17) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=66, var_1_19=-8128, var_1_20=32, var_1_6=-10, var_1_8=0] [L56] COND FALSE !(\read(var_1_15)) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=66, var_1_19=-8128, var_1_20=32, var_1_6=-10, var_1_8=0] [L59] COND FALSE !(\read(var_1_15)) [L66] var_1_6 = var_1_11 VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=66, var_1_19=-8128, var_1_20=32, var_1_6=-2, var_1_8=0] [L112] RET step() [L113] CALL, EXPR property() [L103-L104] return (((((last_1_var_1_18 >= (~ last_1_var_1_18)) ? (var_1_1 == ((float) (var_1_4 + var_1_5))) : 1) && (var_1_15 ? (var_1_15 ? (var_1_6 == ((signed short int) (var_1_11 + var_1_11))) : (var_1_6 == ((signed short int) (var_1_11 + var_1_11)))) : (var_1_6 == ((signed short int) var_1_11)))) && (var_1_15 ? (var_1_11 == ((signed char) ((var_1_12 + ((((10) < (var_1_13)) ? (10) : (var_1_13)))) + var_1_14))) : 1)) && (var_1_8 ? (var_1_15 == ((unsigned char) (! var_1_16))) : (var_1_15 == ((unsigned char) (! var_1_17))))) && ((var_1_17 && ((var_1_1 * var_1_5) >= var_1_4)) ? (var_1_18 == ((unsigned char) (2 + ((var_1_19 - var_1_20) + 32)))) : (var_1_18 == ((unsigned char) var_1_19))) ; VAL [\result=0, isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=66, var_1_19=-8128, var_1_20=32, var_1_6=-2, var_1_8=0] [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=66, var_1_19=-8128, var_1_20=32, var_1_6=-2, var_1_8=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_18=5, var_1_11=-2, var_1_12=32, var_1_13=31, var_1_14=-43, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=66, var_1_19=-8128, var_1_20=32, var_1_6=-2, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 298 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 268 mSDsluCounter, 568 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 298 mSDsCounter, 142 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 224 IncrementalHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 142 mSolverCounterUnsat, 270 mSDtfsCounter, 224 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 375 GetRequests, 347 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=4, InterpolantAutomatonStates: 33, 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, 4 MinimizatonAttempts, 154 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 805 NumberOfCodeBlocks, 805 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 798 ConstructedInterpolants, 0 QuantifiedInterpolants, 1133 SizeOfPredicates, 2 NumberOfNonLiveVariables, 529 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 4196/4284 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-22 12:22:17,780 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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 ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 7ec09e5648980bc5a4329f49d7e2504b195b194638f2d82967f3c7db0031611d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:22:19,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:22:19,782 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-22 12:22:19,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:22:19,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:22:19,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:22:19,818 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:22:19,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:22:19,819 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:22:19,820 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:22:19,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:22:19,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:22:19,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:22:19,822 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:22:19,823 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:22:19,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:22:19,823 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:22:19,823 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:22:19,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:22:19,824 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:22:19,824 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:22:19,827 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:22:19,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:22:19,827 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 12:22:19,827 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-22 12:22:19,828 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:22:19,828 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-22 12:22:19,828 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:22:19,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:22:19,828 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:22:19,829 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:22:19,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:22:19,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:22:19,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:22:19,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:22:19,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:22:19,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:22:19,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:22:19,841 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-22 12:22:19,841 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-22 12:22:19,841 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:22:19,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:22:19,847 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:22:19,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:22:19,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ec09e5648980bc5a4329f49d7e2504b195b194638f2d82967f3c7db0031611d [2024-11-22 12:22:20,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:22:20,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:22:20,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:22:20,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:22:20,334 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:22:20,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.i [2024-11-22 12:22:21,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:22:21,920 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:22:21,921 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.i [2024-11-22 12:22:21,934 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c0cbd18/7065f5736a3f4684a90c7d4991959c6a/FLAG490c7afd3 [2024-11-22 12:22:21,948 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5c0cbd18/7065f5736a3f4684a90c7d4991959c6a [2024-11-22 12:22:21,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:22:21,951 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:22:21,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:22:21,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:22:21,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:22:21,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:22:21" (1/1) ... [2024-11-22 12:22:21,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da8a27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:21, skipping insertion in model container [2024-11-22 12:22:21,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:22:21" (1/1) ... [2024-11-22 12:22:21,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:22:22,143 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.i[913,926] [2024-11-22 12:22:22,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:22:22,203 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:22:22,215 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-35.i[913,926] [2024-11-22 12:22:22,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:22:22,248 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:22:22,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22 WrapperNode [2024-11-22 12:22:22,249 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:22:22,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:22:22,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:22:22,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:22:22,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,296 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2024-11-22 12:22:22,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:22:22,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:22:22,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:22:22,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:22:22,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,316 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,328 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 12:22:22,335 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,335 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:22:22,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:22:22,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:22:22,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:22:22,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (1/1) ... [2024-11-22 12:22:22,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:22:22,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:22:22,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 12:22:22,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 12:22:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:22:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-22 12:22:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:22:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:22:22,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:22:22,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:22:22,512 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:22:22,515 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:22:23,349 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-22 12:22:23,349 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:22:23,364 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:22:23,368 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:22:23,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:22:23 BoogieIcfgContainer [2024-11-22 12:22:23,369 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:22:23,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:22:23,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:22:23,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:22:23,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:22:21" (1/3) ... [2024-11-22 12:22:23,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e64eedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:22:23, skipping insertion in model container [2024-11-22 12:22:23,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:22:22" (2/3) ... [2024-11-22 12:22:23,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e64eedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:22:23, skipping insertion in model container [2024-11-22 12:22:23,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:22:23" (3/3) ... [2024-11-22 12:22:23,380 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-35.i [2024-11-22 12:22:23,396 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:22:23,396 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:22:23,452 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:22:23,458 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;@3c0c9d14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:22:23,458 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:22:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:22:23,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:22:23,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:22:23,471 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:22:23,472 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:22:23,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:22:23,476 INFO L85 PathProgramCache]: Analyzing trace with hash -232387294, now seen corresponding path program 1 times [2024-11-22 12:22:23,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 12:22:23,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611430778] [2024-11-22 12:22:23,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:23,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 12:22:23,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 12:22:23,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 12:22:23,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-22 12:22:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:22:23,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:22:23,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:22:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-22 12:22:23,811 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:22:23,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 12:22:23,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611430778] [2024-11-22 12:22:23,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611430778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:22:23,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:22:23,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 12:22:23,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63824762] [2024-11-22 12:22:23,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:22:23,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:22:23,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 12:22:23,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:22:23,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:22:23,842 INFO L87 Difference]: Start difference. First operand has 54 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 12:22:23,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:22:23,867 INFO L93 Difference]: Finished difference Result 101 states and 172 transitions. [2024-11-22 12:22:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:22:23,870 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 115 [2024-11-22 12:22:23,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:22:23,891 INFO L225 Difference]: With dead ends: 101 [2024-11-22 12:22:23,891 INFO L226 Difference]: Without dead ends: 50 [2024-11-22 12:22:23,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:22:23,896 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:22:23,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:22:23,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-22 12:22:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-22 12:22:23,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:22:23,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 73 transitions. [2024-11-22 12:22:23,926 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 73 transitions. Word has length 115 [2024-11-22 12:22:23,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:22:23,927 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 73 transitions. [2024-11-22 12:22:23,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 12:22:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions. [2024-11-22 12:22:23,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:22:23,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:22:23,929 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:22:23,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-22 12:22:24,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 12:22:24,131 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:22:24,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:22:24,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1342920990, now seen corresponding path program 1 times [2024-11-22 12:22:24,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 12:22:24,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267463653] [2024-11-22 12:22:24,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:24,133 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 12:22:24,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 12:22:24,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 12:22:24,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-22 12:22:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:22:24,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 12:22:24,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:22:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-22 12:22:24,377 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:22:24,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 12:22:24,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267463653] [2024-11-22 12:22:24,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267463653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:22:24,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:22:24,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 12:22:24,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438168394] [2024-11-22 12:22:24,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:22:24,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 12:22:24,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 12:22:24,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 12:22:24,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:22:24,381 INFO L87 Difference]: Start difference. First operand 50 states and 73 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:22:24,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:22:24,925 INFO L93 Difference]: Finished difference Result 97 states and 143 transitions. [2024-11-22 12:22:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 12:22:24,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-22 12:22:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:22:24,937 INFO L225 Difference]: With dead ends: 97 [2024-11-22 12:22:24,937 INFO L226 Difference]: Without dead ends: 50 [2024-11-22 12:22:24,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 12:22:24,938 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:22:24,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:22:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-22 12:22:24,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-22 12:22:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:22:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 72 transitions. [2024-11-22 12:22:24,952 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 72 transitions. Word has length 115 [2024-11-22 12:22:24,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:22:24,954 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 72 transitions. [2024-11-22 12:22:24,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-22 12:22:24,955 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions. [2024-11-22 12:22:24,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:22:24,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:22:24,957 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:22:24,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-22 12:22:25,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 12:22:25,159 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:22:25,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:22:25,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1735948000, now seen corresponding path program 1 times [2024-11-22 12:22:25,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 12:22:25,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211466469] [2024-11-22 12:22:25,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:25,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 12:22:25,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 12:22:25,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 12:22:25,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-22 12:22:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:22:25,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 12:22:25,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:22:25,587 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 303 proven. 18 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-22 12:22:25,587 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:22:25,798 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 33 proven. 18 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-22 12:22:25,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 12:22:25,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211466469] [2024-11-22 12:22:25,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211466469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 12:22:25,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 12:22:25,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-22 12:22:25,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079609201] [2024-11-22 12:22:25,799 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 12:22:25,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:22:25,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 12:22:25,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:22:25,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:22:25,800 INFO L87 Difference]: Start difference. First operand 50 states and 72 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 12:22:26,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:22:26,788 INFO L93 Difference]: Finished difference Result 213 states and 296 transitions. [2024-11-22 12:22:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 12:22:26,789 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 115 [2024-11-22 12:22:26,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:22:26,791 INFO L225 Difference]: With dead ends: 213 [2024-11-22 12:22:26,791 INFO L226 Difference]: Without dead ends: 166 [2024-11-22 12:22:26,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2024-11-22 12:22:26,793 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 123 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 12:22:26,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 222 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 12:22:26,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-22 12:22:26,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 56. [2024-11-22 12:22:26,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-22 12:22:26,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 76 transitions. [2024-11-22 12:22:26,807 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 76 transitions. Word has length 115 [2024-11-22 12:22:26,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:22:26,808 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 76 transitions. [2024-11-22 12:22:26,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 12:22:26,808 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 76 transitions. [2024-11-22 12:22:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 12:22:26,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:22:26,810 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:22:26,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-22 12:22:27,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 12:22:27,014 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:22:27,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:22:27,018 INFO L85 PathProgramCache]: Analyzing trace with hash -726753632, now seen corresponding path program 1 times [2024-11-22 12:22:27,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 12:22:27,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071545562] [2024-11-22 12:22:27,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:22:27,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-22 12:22:27,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 12:22:27,020 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-22 12:22:27,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-22 12:22:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:22:27,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 12:22:27,258 INFO L278 TraceCheckSpWp]: Computing forward predicates...