./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.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 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 13:09:59,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 13:09:59,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 13:09:59,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 13:09:59,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 13:09:59,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 13:09:59,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 13:09:59,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 13:09:59,396 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 13:09:59,396 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 13:09:59,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 13:09:59,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 13:09:59,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 13:09:59,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 13:09:59,400 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 13:09:59,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 13:09:59,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 13:09:59,401 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 13:09:59,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 13:09:59,401 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 13:09:59,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 13:09:59,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 13:09:59,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 13:09:59,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 13:09:59,405 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 13:09:59,406 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 13:09:59,406 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 13:09:59,406 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 13:09:59,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 13:09:59,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 13:09:59,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 13:09:59,408 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 13:09:59,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:09:59,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 13:09:59,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 13:09:59,409 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 13:09:59,410 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 13:09:59,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 13:09:59,410 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 13:09:59,410 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 13:09:59,410 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 13:09:59,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 13:09:59,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d [2024-10-14 13:09:59,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 13:09:59,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 13:09:59,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 13:09:59,687 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 13:09:59,688 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 13:09:59,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2024-10-14 13:10:01,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 13:10:01,369 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 13:10:01,370 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2024-10-14 13:10:01,380 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc066cb0/9feecf5fd7af4d37976924c1e921ec3f/FLAG9a3928d5d [2024-10-14 13:10:01,395 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc066cb0/9feecf5fd7af4d37976924c1e921ec3f [2024-10-14 13:10:01,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 13:10:01,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 13:10:01,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 13:10:01,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 13:10:01,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 13:10:01,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b72c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01, skipping insertion in model container [2024-10-14 13:10:01,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,428 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 13:10:01,563 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-10-14 13:10:01,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:10:01,607 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 13:10:01,621 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-10-14 13:10:01,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:10:01,677 INFO L204 MainTranslator]: Completed translation [2024-10-14 13:10:01,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01 WrapperNode [2024-10-14 13:10:01,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 13:10:01,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 13:10:01,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 13:10:01,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 13:10:01,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,705 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,750 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2024-10-14 13:10:01,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 13:10:01,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 13:10:01,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 13:10:01,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 13:10:01,762 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,764 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,786 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 13:10:01,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 13:10:01,815 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 13:10:01,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 13:10:01,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 13:10:01,816 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (1/1) ... [2024-10-14 13:10:01,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:10:01,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:10:01,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 13:10:01,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 13:10:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 13:10:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 13:10:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 13:10:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 13:10:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 13:10:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 13:10:02,014 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 13:10:02,016 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 13:10:02,216 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-14 13:10:02,216 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 13:10:02,254 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 13:10:02,255 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 13:10:02,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:10:02 BoogieIcfgContainer [2024-10-14 13:10:02,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 13:10:02,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 13:10:02,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 13:10:02,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 13:10:02,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:10:01" (1/3) ... [2024-10-14 13:10:02,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15860328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:10:02, skipping insertion in model container [2024-10-14 13:10:02,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:01" (2/3) ... [2024-10-14 13:10:02,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15860328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:10:02, skipping insertion in model container [2024-10-14 13:10:02,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:10:02" (3/3) ... [2024-10-14 13:10:02,263 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-13.i [2024-10-14 13:10:02,275 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 13:10:02,275 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 13:10:02,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 13:10:02,331 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;@62ba1649, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 13:10:02,331 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 13:10:02,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 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) [2024-10-14 13:10:02,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-14 13:10:02,351 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:10:02,351 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] [2024-10-14 13:10:02,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:10:02,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:10:02,356 INFO L85 PathProgramCache]: Analyzing trace with hash 74501972, now seen corresponding path program 1 times [2024-10-14 13:10:02,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:10:02,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292128942] [2024-10-14 13:10:02,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:10:02,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:10:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:10:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:10:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:10:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:10:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 13:10:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:10:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 13:10:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:10:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 13:10:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:10:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:10:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:10:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:10:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:10:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:10:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:02,713 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-14 13:10:02,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:10:02,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292128942] [2024-10-14 13:10:02,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292128942] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:10:02,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:10:02,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 13:10:02,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507309152] [2024-10-14 13:10:02,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:10:02,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 13:10:02,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:10:02,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 13:10:02,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:10:02,753 INFO L87 Difference]: Start difference. First operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2024-10-14 13:10:02,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:10:02,799 INFO L93 Difference]: Finished difference Result 83 states and 143 transitions. [2024-10-14 13:10:02,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 13:10:02,802 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 94 [2024-10-14 13:10:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:10:02,808 INFO L225 Difference]: With dead ends: 83 [2024-10-14 13:10:02,809 INFO L226 Difference]: Without dead ends: 41 [2024-10-14 13:10:02,812 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 [2024-10-14 13:10:02,816 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:10:02,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:10:02,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-14 13:10:02,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-14 13:10:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 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) [2024-10-14 13:10:02,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2024-10-14 13:10:02,859 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 94 [2024-10-14 13:10:02,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:10:02,862 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-10-14 13:10:02,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2024-10-14 13:10:02,862 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2024-10-14 13:10:02,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 13:10:02,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:10:02,866 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] [2024-10-14 13:10:02,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 13:10:02,867 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:10:02,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:10:02,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1030474629, now seen corresponding path program 1 times [2024-10-14 13:10:02,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:10:02,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73649256] [2024-10-14 13:10:02,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:10:02,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:10:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:10:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:10:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:10:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:10:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 13:10:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:10:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 13:10:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:10:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 13:10:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:10:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:10:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:10:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:10:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:10:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:10:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-14 13:10:04,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:10:04,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73649256] [2024-10-14 13:10:04,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73649256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:10:04,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:10:04,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:10:04,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625164869] [2024-10-14 13:10:04,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:10:04,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:10:04,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:10:04,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:10:04,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:10:04,438 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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) [2024-10-14 13:10:04,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:10:04,960 INFO L93 Difference]: Finished difference Result 97 states and 135 transitions. [2024-10-14 13:10:04,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:10:04,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 95 [2024-10-14 13:10:04,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:10:04,964 INFO L225 Difference]: With dead ends: 97 [2024-10-14 13:10:04,965 INFO L226 Difference]: Without dead ends: 95 [2024-10-14 13:10:04,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:10:04,967 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 91 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:10:04,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 292 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:10:04,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-14 13:10:04,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 85. [2024-10-14 13:10:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 52 states have internal predecessors, (64), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-14 13:10:05,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2024-10-14 13:10:05,000 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 95 [2024-10-14 13:10:05,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:10:05,002 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2024-10-14 13:10:05,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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) [2024-10-14 13:10:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2024-10-14 13:10:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 13:10:05,005 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:10:05,008 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] [2024-10-14 13:10:05,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 13:10:05,008 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:10:05,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:10:05,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1030415047, now seen corresponding path program 1 times [2024-10-14 13:10:05,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:10:05,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711935402] [2024-10-14 13:10:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:10:05,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:10:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:10:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:10:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:10:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:10:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 13:10:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:10:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 13:10:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:10:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 13:10:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:10:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:10:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:10:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:10:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:10:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:10:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-14 13:10:06,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:10:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711935402] [2024-10-14 13:10:06,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711935402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:10:06,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:10:06,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:10:06,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675535218] [2024-10-14 13:10:06,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:10:06,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:10:06,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:10:06,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:10:06,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:10:06,320 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2024-10-14 13:10:06,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:10:06,797 INFO L93 Difference]: Finished difference Result 93 states and 131 transitions. [2024-10-14 13:10:06,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:10:06,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 95 [2024-10-14 13:10:06,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:10:06,799 INFO L225 Difference]: With dead ends: 93 [2024-10-14 13:10:06,799 INFO L226 Difference]: Without dead ends: 91 [2024-10-14 13:10:06,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:10:06,801 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 81 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:10:06,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 274 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:10:06,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-14 13:10:06,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2024-10-14 13:10:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 52 states have internal predecessors, (64), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-14 13:10:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2024-10-14 13:10:06,814 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 95 [2024-10-14 13:10:06,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:10:06,815 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2024-10-14 13:10:06,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2024-10-14 13:10:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2024-10-14 13:10:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 13:10:06,817 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:10:06,817 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] [2024-10-14 13:10:06,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 13:10:06,817 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:10:06,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:10:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1839821255, now seen corresponding path program 1 times [2024-10-14 13:10:06,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:10:06,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511800414] [2024-10-14 13:10:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:10:06,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:10:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:10:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:10:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:10:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:10:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 13:10:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:10:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 13:10:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:10:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 13:10:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:10:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:10:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:10:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:10:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:10:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:10:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-14 13:10:07,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:10:07,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511800414] [2024-10-14 13:10:07,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511800414] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:10:07,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:10:07,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:10:07,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073775868] [2024-10-14 13:10:07,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:10:07,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:10:07,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:10:07,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:10:07,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:10:07,758 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2024-10-14 13:10:08,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:10:08,277 INFO L93 Difference]: Finished difference Result 171 states and 246 transitions. [2024-10-14 13:10:08,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:10:08,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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 95 [2024-10-14 13:10:08,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:10:08,279 INFO L225 Difference]: With dead ends: 171 [2024-10-14 13:10:08,280 INFO L226 Difference]: Without dead ends: 169 [2024-10-14 13:10:08,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:10:08,281 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 116 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:10:08,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 337 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:10:08,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-10-14 13:10:08,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 163. [2024-10-14 13:10:08,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 98 states have (on average 1.2244897959183674) internal successors, (120), 98 states have internal predecessors, (120), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-14 13:10:08,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 240 transitions. [2024-10-14 13:10:08,304 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 240 transitions. Word has length 95 [2024-10-14 13:10:08,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:10:08,305 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 240 transitions. [2024-10-14 13:10:08,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 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) [2024-10-14 13:10:08,306 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 240 transitions. [2024-10-14 13:10:08,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 13:10:08,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:10:08,307 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] [2024-10-14 13:10:08,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 13:10:08,307 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:10:08,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:10:08,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1839761673, now seen corresponding path program 1 times [2024-10-14 13:10:08,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:10:08,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050275154] [2024-10-14 13:10:08,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:10:08,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:10:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:10:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:10:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:10:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:10:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 13:10:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:10:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 13:10:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:10:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 13:10:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:10:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:10:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:10:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:10:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:10:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:10:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:09,469 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-14 13:10:09,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:10:09,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050275154] [2024-10-14 13:10:09,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050275154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:10:09,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:10:09,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:10:09,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017839068] [2024-10-14 13:10:09,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:10:09,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:10:09,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:10:09,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:10:09,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:10:09,472 INFO L87 Difference]: Start difference. First operand 163 states and 240 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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) [2024-10-14 13:10:10,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:10:10,443 INFO L93 Difference]: Finished difference Result 205 states and 296 transitions. [2024-10-14 13:10:10,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:10:10,443 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 95 [2024-10-14 13:10:10,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:10:10,446 INFO L225 Difference]: With dead ends: 205 [2024-10-14 13:10:10,446 INFO L226 Difference]: Without dead ends: 203 [2024-10-14 13:10:10,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:10:10,448 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 65 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:10:10,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 284 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:10:10,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-10-14 13:10:10,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 199. [2024-10-14 13:10:10,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 118 states have (on average 1.2118644067796611) internal successors, (143), 120 states have internal predecessors, (143), 74 states have call successors, (74), 6 states have call predecessors, (74), 6 states have return successors, (74), 72 states have call predecessors, (74), 74 states have call successors, (74) [2024-10-14 13:10:10,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 291 transitions. [2024-10-14 13:10:10,498 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 291 transitions. Word has length 95 [2024-10-14 13:10:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:10:10,499 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 291 transitions. [2024-10-14 13:10:10,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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) [2024-10-14 13:10:10,499 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 291 transitions. [2024-10-14 13:10:10,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 13:10:10,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:10:10,501 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] [2024-10-14 13:10:10,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 13:10:10,501 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:10:10,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:10:10,503 INFO L85 PathProgramCache]: Analyzing trace with hash -350416259, now seen corresponding path program 1 times [2024-10-14 13:10:10,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:10:10,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608389885] [2024-10-14 13:10:10,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:10:10,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:10:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 13:10:10,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2087612858] [2024-10-14 13:10:10,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:10:10,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:10:10,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:10:10,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 13:10:10,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 13:10:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 13:10:10,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 13:10:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 13:10:10,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 13:10:10,761 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 13:10:10,762 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 13:10:10,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 13:10:10,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-14 13:10:10,971 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-14 13:10:11,036 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 13:10:11,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 01:10:11 BoogieIcfgContainer [2024-10-14 13:10:11,039 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 13:10:11,040 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 13:10:11,040 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 13:10:11,040 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 13:10:11,040 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:10:02" (3/4) ... [2024-10-14 13:10:11,045 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 13:10:11,046 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 13:10:11,046 INFO L158 Benchmark]: Toolchain (without parser) took 9648.08ms. Allocated memory was 136.3MB in the beginning and 308.3MB in the end (delta: 172.0MB). Free memory was 79.7MB in the beginning and 257.7MB in the end (delta: -178.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 13:10:11,047 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 13:10:11,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.13ms. Allocated memory is still 136.3MB. Free memory was 79.4MB in the beginning and 66.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 13:10:11,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.56ms. Allocated memory is still 136.3MB. Free memory was 66.0MB in the beginning and 63.6MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 13:10:11,048 INFO L158 Benchmark]: Boogie Preprocessor took 63.43ms. Allocated memory is still 136.3MB. Free memory was 63.6MB in the beginning and 60.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 13:10:11,048 INFO L158 Benchmark]: RCFGBuilder took 439.93ms. Allocated memory is still 136.3MB. Free memory was 60.0MB in the beginning and 92.1MB in the end (delta: -32.0MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2024-10-14 13:10:11,048 INFO L158 Benchmark]: TraceAbstraction took 8782.04ms. Allocated memory was 136.3MB in the beginning and 308.3MB in the end (delta: 172.0MB). Free memory was 91.5MB in the beginning and 257.7MB in the end (delta: -166.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-10-14 13:10:11,049 INFO L158 Benchmark]: Witness Printer took 6.39ms. Allocated memory is still 308.3MB. Free memory is still 257.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 13:10:11,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 136.3MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.13ms. Allocated memory is still 136.3MB. Free memory was 79.4MB in the beginning and 66.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.56ms. Allocated memory is still 136.3MB. Free memory was 66.0MB in the beginning and 63.6MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.43ms. Allocated memory is still 136.3MB. Free memory was 63.6MB in the beginning and 60.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 439.93ms. Allocated memory is still 136.3MB. Free memory was 60.0MB in the beginning and 92.1MB in the end (delta: -32.0MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8782.04ms. Allocated memory was 136.3MB in the beginning and 308.3MB in the end (delta: 172.0MB). Free memory was 91.5MB in the beginning and 257.7MB in the end (delta: -166.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Witness Printer took 6.39ms. Allocated memory is still 308.3MB. Free memory is still 257.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 88. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 25; [L23] unsigned char var_1_2 = 1; [L24] signed char var_1_5 = 16; [L25] unsigned short int var_1_6 = 16; [L26] signed char var_1_7 = 4; [L27] unsigned short int var_1_8 = 2; [L28] signed char var_1_9 = 64; [L29] signed char var_1_10 = 0; [L30] unsigned char var_1_11 = 16; [L31] double var_1_12 = 128.4; [L32] double var_1_13 = 50.2; [L33] double var_1_14 = 3.8; [L34] double var_1_15 = 25.1; [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] FCALL updateLastVariables() [L96] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L62] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L62] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L65] CALL assume_abort_if_not(var_1_6 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L65] RET assume_abort_if_not(var_1_6 <= 65535) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_7=4, var_1_8=2, var_1_9=64] [L66] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=4, var_1_8=2, var_1_9=64] [L66] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=4, var_1_8=2, var_1_9=64] [L67] var_1_7 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L68] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L69] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L69] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=64] [L70] var_1_9 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_9 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L71] RET assume_abort_if_not(var_1_9 >= 63) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L72] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L72] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L73] var_1_10 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L74] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L75] CALL assume_abort_if_not(var_1_10 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L75] RET assume_abort_if_not(var_1_10 <= 64) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L76] var_1_12 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L77] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L78] var_1_13 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L79] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L80] var_1_14 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L81] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_15=251/10, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L82] var_1_15 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=16, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L83] RET assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L96] RET updateVariables() [L97] CALL step() [L38] COND FALSE !(((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=25, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L41] COND TRUE \read(var_1_2) [L42] var_1_1 = ((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=16, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L44] COND TRUE (var_1_1 == 16) || (var_1_11 < (10 / var_1_6)) [L45] var_1_5 = var_1_7 VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L49] unsigned char stepLocal_1 = var_1_11; [L50] unsigned char stepLocal_0 = var_1_2; VAL [isInitial=1, stepLocal_1=16, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L51] COND TRUE stepLocal_0 || (var_1_11 >= var_1_11) VAL [isInitial=1, stepLocal_1=16, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=2, var_1_9=65] [L52] COND TRUE stepLocal_1 < ((var_1_9 - var_1_10) - 16) [L53] var_1_8 = ((((var_1_10) > (32)) ? (var_1_10) : (32))) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=32, var_1_9=65] [L97] RET step() [L98] CALL, EXPR property() [L88-L89] return (((var_1_2 ? (var_1_1 == ((unsigned short int) ((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))))) : 1) && (((var_1_1 == 16) || (var_1_11 < (10 / var_1_6))) ? (var_1_5 == ((signed char) var_1_7)) : (var_1_5 == ((signed char) 5)))) && ((var_1_2 || (var_1_11 >= var_1_11)) ? ((var_1_11 < ((var_1_9 - var_1_10) - 16)) ? (var_1_8 == ((unsigned short int) ((((var_1_10) > (32)) ? (var_1_10) : (32))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_9) < (var_1_11)) ? (var_1_9) : (var_1_11))))))) && ((((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) ? (var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=32, var_1_9=65] [L19] reach_error() VAL [isInitial=1, var_1_10=32, var_1_11=16, var_1_1=16, var_1_2=-255, var_1_5=-127, var_1_6=-65535, var_1_7=-127, var_1_8=32, var_1_9=65] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 6, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 353 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 353 mSDsluCounter, 1243 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 835 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 746 IncrementalHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 408 mSDtfsCounter, 746 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 469 ConstructedInterpolants, 0 QuantifiedInterpolants, 3043 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2100/2100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-14 13:10:11,102 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 13:10:13,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 13:10:13,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-14 13:10:13,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 13:10:13,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 13:10:13,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 13:10:13,316 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 13:10:13,317 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 13:10:13,317 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 13:10:13,318 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 13:10:13,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 13:10:13,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 13:10:13,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 13:10:13,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 13:10:13,321 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 13:10:13,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 13:10:13,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 13:10:13,325 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 13:10:13,325 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 13:10:13,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 13:10:13,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 13:10:13,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 13:10:13,326 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 13:10:13,327 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 13:10:13,327 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 13:10:13,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 13:10:13,328 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 13:10:13,328 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 13:10:13,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 13:10:13,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 13:10:13,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 13:10:13,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 13:10:13,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 13:10:13,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 13:10:13,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:10:13,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 13:10:13,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 13:10:13,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 13:10:13,333 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 13:10:13,334 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 13:10:13,334 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 13:10:13,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 13:10:13,335 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 13:10:13,335 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 13:10:13,335 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 13:10:13,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 476382d18560c39f16aae727092b47108fdc1ae0e3eedbadcc67982af5d45e6d [2024-10-14 13:10:13,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 13:10:13,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 13:10:13,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 13:10:13,710 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 13:10:13,711 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 13:10:13,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2024-10-14 13:10:15,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 13:10:15,467 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 13:10:15,468 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i [2024-10-14 13:10:15,479 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8f39895/df1d561d4ce741a2a26341a00d179d44/FLAG978f22350 [2024-10-14 13:10:15,490 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8f39895/df1d561d4ce741a2a26341a00d179d44 [2024-10-14 13:10:15,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 13:10:15,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 13:10:15,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 13:10:15,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 13:10:15,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 13:10:15,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5e55f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15, skipping insertion in model container [2024-10-14 13:10:15,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,523 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 13:10:15,684 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-10-14 13:10:15,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:10:15,773 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 13:10:15,786 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-13.i[913,926] [2024-10-14 13:10:15,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:10:15,841 INFO L204 MainTranslator]: Completed translation [2024-10-14 13:10:15,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15 WrapperNode [2024-10-14 13:10:15,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 13:10:15,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 13:10:15,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 13:10:15,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 13:10:15,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,894 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2024-10-14 13:10:15,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 13:10:15,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 13:10:15,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 13:10:15,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 13:10:15,915 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,935 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 13:10:15,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 13:10:15,965 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 13:10:15,965 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 13:10:15,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 13:10:15,966 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (1/1) ... [2024-10-14 13:10:15,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:10:15,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:10:16,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 13:10:16,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 13:10:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 13:10:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 13:10:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 13:10:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 13:10:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 13:10:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 13:10:16,112 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 13:10:16,114 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 13:10:20,012 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-14 13:10:20,013 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 13:10:20,074 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 13:10:20,075 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 13:10:20,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:10:20 BoogieIcfgContainer [2024-10-14 13:10:20,075 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 13:10:20,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 13:10:20,077 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 13:10:20,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 13:10:20,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:10:15" (1/3) ... [2024-10-14 13:10:20,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377180d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:10:20, skipping insertion in model container [2024-10-14 13:10:20,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:10:15" (2/3) ... [2024-10-14 13:10:20,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377180d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:10:20, skipping insertion in model container [2024-10-14 13:10:20,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:10:20" (3/3) ... [2024-10-14 13:10:20,085 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-13.i [2024-10-14 13:10:20,099 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 13:10:20,099 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 13:10:20,164 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 13:10:20,173 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;@2c2a7716, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 13:10:20,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 13:10:20,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 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) [2024-10-14 13:10:20,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-14 13:10:20,188 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:10:20,189 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] [2024-10-14 13:10:20,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:10:20,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:10:20,195 INFO L85 PathProgramCache]: Analyzing trace with hash 74501972, now seen corresponding path program 1 times [2024-10-14 13:10:20,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 13:10:20,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736214979] [2024-10-14 13:10:20,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:10:20,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 13:10:20,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 13:10:20,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 13:10:20,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-14 13:10:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:20,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 13:10:20,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:10:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-14 13:10:20,599 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 13:10:20,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 13:10:20,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736214979] [2024-10-14 13:10:20,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736214979] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:10:20,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:10:20,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 13:10:20,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043046462] [2024-10-14 13:10:20,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:10:20,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 13:10:20,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 13:10:20,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 13:10:20,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:10:20,630 INFO L87 Difference]: Start difference. First operand has 43 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2024-10-14 13:10:22,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 13:10:22,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:10:22,769 INFO L93 Difference]: Finished difference Result 83 states and 143 transitions. [2024-10-14 13:10:22,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 13:10:22,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 94 [2024-10-14 13:10:22,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:10:22,796 INFO L225 Difference]: With dead ends: 83 [2024-10-14 13:10:22,796 INFO L226 Difference]: Without dead ends: 41 [2024-10-14 13:10:22,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:10:22,810 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:10:22,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-14 13:10:22,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-14 13:10:22,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-14 13:10:22,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 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) [2024-10-14 13:10:22,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2024-10-14 13:10:22,842 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 94 [2024-10-14 13:10:22,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:10:22,842 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-10-14 13:10:22,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2024-10-14 13:10:22,843 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2024-10-14 13:10:22,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 13:10:22,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:10:22,846 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] [2024-10-14 13:10:22,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-14 13:10:23,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 13:10:23,047 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:10:23,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:10:23,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1030474629, now seen corresponding path program 1 times [2024-10-14 13:10:23,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 13:10:23,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490474619] [2024-10-14 13:10:23,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:10:23,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 13:10:23,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 13:10:23,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 13:10:23,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-14 13:10:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:23,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 13:10:23,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:10:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-14 13:10:23,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 13:10:23,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 13:10:23,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490474619] [2024-10-14 13:10:23,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490474619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:10:23,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:10:23,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:10:23,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103682203] [2024-10-14 13:10:23,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:10:23,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:10:23,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 13:10:23,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:10:23,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:10:23,527 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-10-14 13:10:24,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 13:10:26,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 13:10:28,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-14 13:10:28,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:10:28,161 INFO L93 Difference]: Finished difference Result 161 states and 233 transitions. [2024-10-14 13:10:28,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:10:28,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 95 [2024-10-14 13:10:28,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:10:28,180 INFO L225 Difference]: With dead ends: 161 [2024-10-14 13:10:28,181 INFO L226 Difference]: Without dead ends: 121 [2024-10-14 13:10:28,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:10:28,182 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 135 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:10:28,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 166 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-10-14 13:10:28,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-14 13:10:28,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2024-10-14 13:10:28,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 68 states have (on average 1.2058823529411764) internal successors, (82), 68 states have internal predecessors, (82), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-14 13:10:28,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 172 transitions. [2024-10-14 13:10:28,216 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 172 transitions. Word has length 95 [2024-10-14 13:10:28,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:10:28,217 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 172 transitions. [2024-10-14 13:10:28,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-10-14 13:10:28,217 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 172 transitions. [2024-10-14 13:10:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 13:10:28,219 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:10:28,219 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] [2024-10-14 13:10:28,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-14 13:10:28,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 13:10:28,420 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:10:28,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:10:28,420 INFO L85 PathProgramCache]: Analyzing trace with hash 744532733, now seen corresponding path program 1 times [2024-10-14 13:10:28,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 13:10:28,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512933976] [2024-10-14 13:10:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:10:28,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 13:10:28,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 13:10:28,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 13:10:28,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-14 13:10:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:10:28,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 13:10:28,667 INFO L278 TraceCheckSpWp]: Computing forward predicates...