./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-76.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-76.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 53f56ada378bb0c37d2572871baea3e6e471c6fc42badf64010dad779eb8adc8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:05:41,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:05:41,130 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:05:41,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:05:41,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:05:41,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:05:41,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:05:41,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:05:41,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:05:41,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:05:41,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:05:41,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:05:41,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:05:41,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:05:41,162 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:05:41,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:05:41,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:05:41,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:05:41,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:05:41,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:05:41,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:05:41,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:05:41,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:05:41,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:05:41,165 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:05:41,166 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:05:41,166 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:05:41,166 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:05:41,166 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:05:41,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:05:41,167 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:05:41,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:05:41,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:05:41,167 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:05:41,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:05:41,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:05:41,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:05:41,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:05:41,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:05:41,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:05:41,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:05:41,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:05:41,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53f56ada378bb0c37d2572871baea3e6e471c6fc42badf64010dad779eb8adc8 [2024-11-16 18:05:41,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:05:41,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:05:41,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:05:41,393 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:05:41,393 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:05:41,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-76.i [2024-11-16 18:05:42,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:05:42,808 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:05:42,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-76.i [2024-11-16 18:05:42,816 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cee2b8c36/d3e1e23860064e72872d48d90d6ebda5/FLAGd36e36c14 [2024-11-16 18:05:43,195 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cee2b8c36/d3e1e23860064e72872d48d90d6ebda5 [2024-11-16 18:05:43,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:05:43,199 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:05:43,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:05:43,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:05:43,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:05:43,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493ee932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43, skipping insertion in model container [2024-11-16 18:05:43,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,225 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:05:43,347 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-76.i[913,926] [2024-11-16 18:05:43,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:05:43,385 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:05:43,393 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-76.i[913,926] [2024-11-16 18:05:43,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:05:43,452 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:05:43,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43 WrapperNode [2024-11-16 18:05:43,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:05:43,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:05:43,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:05:43,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:05:43,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,501 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2024-11-16 18:05:43,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:05:43,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:05:43,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:05:43,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:05:43,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,524 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 18:05:43,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,534 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:05:43,539 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:05:43,539 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:05:43,539 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:05:43,540 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (1/1) ... [2024-11-16 18:05:43,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:05:43,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:05:43,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 18:05:43,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 18:05:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:05:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:05:43,614 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:05:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:05:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:05:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:05:43,682 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:05:43,684 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:05:43,824 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-16 18:05:43,824 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:05:43,837 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:05:43,837 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:05:43,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:05:43 BoogieIcfgContainer [2024-11-16 18:05:43,838 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:05:43,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:05:43,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:05:43,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:05:43,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:05:43" (1/3) ... [2024-11-16 18:05:43,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45eb232f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:05:43, skipping insertion in model container [2024-11-16 18:05:43,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:43" (2/3) ... [2024-11-16 18:05:43,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45eb232f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:05:43, skipping insertion in model container [2024-11-16 18:05:43,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:05:43" (3/3) ... [2024-11-16 18:05:43,844 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-76.i [2024-11-16 18:05:43,856 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:05:43,856 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:05:43,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:05:43,918 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;@301938b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:05:43,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:05:43,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 18:05:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 18:05:43,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:05:43,929 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:43,929 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:05:43,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:05:43,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2113926669, now seen corresponding path program 1 times [2024-11-16 18:05:43,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:05:43,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157210341] [2024-11-16 18:05:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:43,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:05:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:05:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:05:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:05:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:05:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:05:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:05:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:05:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:05:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:05:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 18:05:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:05:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 18:05:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:05:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:05:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:05:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,189 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:05:44,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:05:44,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157210341] [2024-11-16 18:05:44,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157210341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:05:44,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:05:44,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:05:44,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656365194] [2024-11-16 18:05:44,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:05:44,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:05:44,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:05:44,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:05:44,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:05:44,220 INFO L87 Difference]: Start difference. First operand has 54 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:05:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:05:44,240 INFO L93 Difference]: Finished difference Result 100 states and 166 transitions. [2024-11-16 18:05:44,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:05:44,241 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 99 [2024-11-16 18:05:44,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:05:44,246 INFO L225 Difference]: With dead ends: 100 [2024-11-16 18:05:44,246 INFO L226 Difference]: Without dead ends: 49 [2024-11-16 18:05:44,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:05:44,250 INFO L432 NwaCegarLoop]: 70 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, 70 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 [2024-11-16 18:05:44,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:05:44,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-16 18:05:44,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-16 18:05:44,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 18:05:44,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2024-11-16 18:05:44,281 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 99 [2024-11-16 18:05:44,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:05:44,282 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2024-11-16 18:05:44,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:05:44,282 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2024-11-16 18:05:44,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 18:05:44,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:05:44,288 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:44,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:05:44,288 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:05:44,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:05:44,289 INFO L85 PathProgramCache]: Analyzing trace with hash 125328185, now seen corresponding path program 1 times [2024-11-16 18:05:44,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:05:44,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579352103] [2024-11-16 18:05:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:44,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:05:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:05:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:05:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:05:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:05:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:05:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:05:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:05:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:05:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:05:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 18:05:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:05:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 18:05:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:05:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:05:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:05:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:05:44,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:05:44,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579352103] [2024-11-16 18:05:44,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579352103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:05:44,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:05:44,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 18:05:44,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064925005] [2024-11-16 18:05:44,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:05:44,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 18:05:44,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:05:44,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 18:05:44,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:05:44,471 INFO L87 Difference]: Start difference. First operand 49 states and 70 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:05:44,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:05:44,494 INFO L93 Difference]: Finished difference Result 95 states and 137 transitions. [2024-11-16 18:05:44,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 18:05:44,494 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 100 [2024-11-16 18:05:44,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:05:44,496 INFO L225 Difference]: With dead ends: 95 [2024-11-16 18:05:44,496 INFO L226 Difference]: Without dead ends: 49 [2024-11-16 18:05:44,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:05:44,497 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 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 [2024-11-16 18:05:44,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:05:44,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-16 18:05:44,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-16 18:05:44,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 18:05:44,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2024-11-16 18:05:44,506 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 69 transitions. Word has length 100 [2024-11-16 18:05:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:05:44,507 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 69 transitions. [2024-11-16 18:05:44,508 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:05:44,508 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2024-11-16 18:05:44,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 18:05:44,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:05:44,511 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:44,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:05:44,512 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:05:44,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:05:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1671623174, now seen corresponding path program 1 times [2024-11-16 18:05:44,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:05:44,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145699072] [2024-11-16 18:05:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:44,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:05:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:05:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:05:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:05:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:05:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:05:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:05:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:05:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:05:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:05:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 18:05:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:05:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 18:05:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:05:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:05:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:05:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,684 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:05:44,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:05:44,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145699072] [2024-11-16 18:05:44,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145699072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:05:44,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:05:44,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 18:05:44,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979428819] [2024-11-16 18:05:44,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:05:44,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 18:05:44,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:05:44,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 18:05:44,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:05:44,689 INFO L87 Difference]: Start difference. First operand 49 states and 69 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:05:44,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:05:44,708 INFO L93 Difference]: Finished difference Result 95 states and 135 transitions. [2024-11-16 18:05:44,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 18:05:44,708 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 100 [2024-11-16 18:05:44,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:05:44,709 INFO L225 Difference]: With dead ends: 95 [2024-11-16 18:05:44,709 INFO L226 Difference]: Without dead ends: 49 [2024-11-16 18:05:44,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:05:44,711 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:05:44,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:05:44,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-16 18:05:44,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-16 18:05:44,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 18:05:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2024-11-16 18:05:44,718 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 68 transitions. Word has length 100 [2024-11-16 18:05:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:05:44,719 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 68 transitions. [2024-11-16 18:05:44,719 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:05:44,719 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2024-11-16 18:05:44,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 18:05:44,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:05:44,720 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:44,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:05:44,721 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:05:44,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:05:44,721 INFO L85 PathProgramCache]: Analyzing trace with hash -160718739, now seen corresponding path program 1 times [2024-11-16 18:05:44,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:05:44,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833139565] [2024-11-16 18:05:44,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:44,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:05:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:05:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:05:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:05:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:05:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:05:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:05:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:05:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:05:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:05:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 18:05:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:05:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 18:05:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:05:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:05:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:05:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:44,832 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:05:44,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:05:44,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833139565] [2024-11-16 18:05:44,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833139565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:05:44,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:05:44,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 18:05:44,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070709617] [2024-11-16 18:05:44,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:05:44,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 18:05:44,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:05:44,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 18:05:44,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:05:44,837 INFO L87 Difference]: Start difference. First operand 49 states and 68 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:05:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:05:44,879 INFO L93 Difference]: Finished difference Result 137 states and 191 transitions. [2024-11-16 18:05:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 18:05:44,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 101 [2024-11-16 18:05:44,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:05:44,881 INFO L225 Difference]: With dead ends: 137 [2024-11-16 18:05:44,881 INFO L226 Difference]: Without dead ends: 91 [2024-11-16 18:05:44,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:05:44,882 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 58 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:05:44,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 130 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:05:44,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-16 18:05:44,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 53. [2024-11-16 18:05:44,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 18:05:44,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2024-11-16 18:05:44,894 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 101 [2024-11-16 18:05:44,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:05:44,895 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2024-11-16 18:05:44,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:05:44,895 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2024-11-16 18:05:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 18:05:44,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:05:44,896 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:44,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:05:44,896 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:05:44,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:05:44,897 INFO L85 PathProgramCache]: Analyzing trace with hash 726784942, now seen corresponding path program 1 times [2024-11-16 18:05:44,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:05:44,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550645909] [2024-11-16 18:05:44,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:44,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:05:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:05:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:05:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:05:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:05:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:05:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:05:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:05:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:05:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:05:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 18:05:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:05:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 18:05:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:05:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:05:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:05:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:45,928 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:05:45,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:05:45,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550645909] [2024-11-16 18:05:45,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550645909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:05:45,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:05:45,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:05:45,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725859658] [2024-11-16 18:05:45,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:05:45,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:05:45,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:05:45,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:05:45,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:05:45,931 INFO L87 Difference]: Start difference. First operand 53 states and 72 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:05:46,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:05:46,204 INFO L93 Difference]: Finished difference Result 144 states and 187 transitions. [2024-11-16 18:05:46,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:05:46,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 101 [2024-11-16 18:05:46,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:05:46,205 INFO L225 Difference]: With dead ends: 144 [2024-11-16 18:05:46,207 INFO L226 Difference]: Without dead ends: 94 [2024-11-16 18:05:46,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:05:46,208 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 83 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:05:46,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 292 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:05:46,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-16 18:05:46,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2024-11-16 18:05:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 59 states have internal predecessors, (67), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 18:05:46,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 101 transitions. [2024-11-16 18:05:46,218 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 101 transitions. Word has length 101 [2024-11-16 18:05:46,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:05:46,218 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 101 transitions. [2024-11-16 18:05:46,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:05:46,219 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 101 transitions. [2024-11-16 18:05:46,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 18:05:46,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:05:46,220 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:46,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 18:05:46,220 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:05:46,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:05:46,220 INFO L85 PathProgramCache]: Analyzing trace with hash 230726842, now seen corresponding path program 1 times [2024-11-16 18:05:46,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:05:46,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440806357] [2024-11-16 18:05:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:46,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:05:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:05:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:05:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:05:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:05:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:05:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:05:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:05:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:05:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:05:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 18:05:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:05:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 18:05:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:05:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:05:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:05:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,406 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-16 18:05:46,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:05:46,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440806357] [2024-11-16 18:05:46,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440806357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:05:46,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020861669] [2024-11-16 18:05:46,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:46,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:05:46,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:05:46,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 18:05:46,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 18:05:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:46,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 18:05:46,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:05:46,656 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 204 proven. 27 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-16 18:05:46,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:05:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-16 18:05:46,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020861669] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 18:05:46,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 18:05:46,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-11-16 18:05:46,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323768915] [2024-11-16 18:05:46,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 18:05:46,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:05:46,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:05:46,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:05:46,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:05:46,810 INFO L87 Difference]: Start difference. First operand 79 states and 101 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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) [2024-11-16 18:05:47,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:05:47,050 INFO L93 Difference]: Finished difference Result 198 states and 249 transitions. [2024-11-16 18:05:47,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 18:05:47,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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 102 [2024-11-16 18:05:47,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:05:47,053 INFO L225 Difference]: With dead ends: 198 [2024-11-16 18:05:47,053 INFO L226 Difference]: Without dead ends: 122 [2024-11-16 18:05:47,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 229 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:05:47,054 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 66 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:05:47,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 188 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:05:47,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-16 18:05:47,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 89. [2024-11-16 18:05:47,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.0327868852459017) internal successors, (63), 63 states have internal predecessors, (63), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-16 18:05:47,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 105 transitions. [2024-11-16 18:05:47,077 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 105 transitions. Word has length 102 [2024-11-16 18:05:47,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:05:47,077 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 105 transitions. [2024-11-16 18:05:47,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 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) [2024-11-16 18:05:47,077 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 105 transitions. [2024-11-16 18:05:47,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 18:05:47,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:05:47,079 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:47,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 18:05:47,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 18:05:47,280 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:05:47,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:05:47,281 INFO L85 PathProgramCache]: Analyzing trace with hash 51763449, now seen corresponding path program 1 times [2024-11-16 18:05:47,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:05:47,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377355714] [2024-11-16 18:05:47,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:47,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:05:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:05:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:05:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:05:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:05:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:05:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:05:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:05:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 18:05:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:05:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 18:05:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:05:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 18:05:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:05:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:05:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:05:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:05:47,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:05:47,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377355714] [2024-11-16 18:05:47,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377355714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:05:47,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:05:47,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:05:47,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054771166] [2024-11-16 18:05:47,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:05:47,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:05:47,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:05:47,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:05:47,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:05:47,707 INFO L87 Difference]: Start difference. First operand 89 states and 105 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:05:47,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:05:47,813 INFO L93 Difference]: Finished difference Result 94 states and 109 transitions. [2024-11-16 18:05:47,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:05:47,814 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 102 [2024-11-16 18:05:47,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:05:47,814 INFO L225 Difference]: With dead ends: 94 [2024-11-16 18:05:47,814 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 18:05:47,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:05:47,815 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 59 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:05:47,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 277 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:05:47,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 18:05:47,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 18:05:47,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 18:05:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 18:05:47,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2024-11-16 18:05:47,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:05:47,817 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 18:05:47,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:05:47,817 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 18:05:47,817 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 18:05:47,819 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 18:05:47,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 18:05:47,822 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:47,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 18:05:48,342 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 18:05:48,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 06:05:48 BoogieIcfgContainer [2024-11-16 18:05:48,361 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 18:05:48,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 18:05:48,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 18:05:48,362 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 18:05:48,362 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:05:43" (3/4) ... [2024-11-16 18:05:48,365 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 18:05:48,368 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-16 18:05:48,373 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-16 18:05:48,373 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-16 18:05:48,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 18:05:48,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 18:05:48,439 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 18:05:48,439 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 18:05:48,439 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 18:05:48,440 INFO L158 Benchmark]: Toolchain (without parser) took 5241.36ms. Allocated memory was 186.6MB in the beginning and 283.1MB in the end (delta: 96.5MB). Free memory was 117.4MB in the beginning and 161.3MB in the end (delta: -43.9MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2024-11-16 18:05:48,440 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 18:05:48,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.61ms. Allocated memory is still 186.6MB. Free memory was 117.2MB in the beginning and 156.6MB in the end (delta: -39.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-11-16 18:05:48,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.82ms. Allocated memory is still 186.6MB. Free memory was 156.6MB in the beginning and 154.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 18:05:48,443 INFO L158 Benchmark]: Boogie Preprocessor took 36.70ms. Allocated memory is still 186.6MB. Free memory was 154.5MB in the beginning and 152.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 18:05:48,443 INFO L158 Benchmark]: IcfgBuilder took 298.62ms. Allocated memory is still 186.6MB. Free memory was 152.4MB in the beginning and 135.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 18:05:48,444 INFO L158 Benchmark]: TraceAbstraction took 4521.84ms. Allocated memory was 186.6MB in the beginning and 283.1MB in the end (delta: 96.5MB). Free memory was 135.6MB in the beginning and 166.5MB in the end (delta: -30.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-16 18:05:48,444 INFO L158 Benchmark]: Witness Printer took 77.98ms. Allocated memory is still 283.1MB. Free memory was 166.5MB in the beginning and 161.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 18:05:48,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.61ms. Allocated memory is still 186.6MB. Free memory was 117.2MB in the beginning and 156.6MB in the end (delta: -39.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.82ms. Allocated memory is still 186.6MB. Free memory was 156.6MB in the beginning and 154.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.70ms. Allocated memory is still 186.6MB. Free memory was 154.5MB in the beginning and 152.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 298.62ms. Allocated memory is still 186.6MB. Free memory was 152.4MB in the beginning and 135.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4521.84ms. Allocated memory was 186.6MB in the beginning and 283.1MB in the end (delta: 96.5MB). Free memory was 135.6MB in the beginning and 166.5MB in the end (delta: -30.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Witness Printer took 77.98ms. Allocated memory is still 283.1MB. Free memory was 166.5MB in the beginning and 161.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 7, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 284 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 266 mSDsluCounter, 1216 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 734 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 483 IncrementalHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 482 mSDtfsCounter, 483 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 480 GetRequests, 441 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=6, InterpolantAutomatonStates: 44, 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, 7 MinimizatonAttempts, 86 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 807 NumberOfCodeBlocks, 807 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 900 ConstructedInterpolants, 0 QuantifiedInterpolants, 1867 SizeOfPredicates, 2 NumberOfNonLiveVariables, 234 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 3699/3780 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 106]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((cond != 0) && ((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (last_1_var_1_8 == \old(last_1_var_1_8)))) RESULT: Ultimate proved your program to be correct! [2024-11-16 18:05:48,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE