./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_floatingpointinfluence_has-floats_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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_floatingpointinfluence_has-floats_file-87.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 701a3cf9e7f8947837fea9293fda1abd0e3caa7fba9d99368bf2c80556060420 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 05:57:36,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 05:57:36,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 05:57:36,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 05:57:36,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 05:57:37,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 05:57:37,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 05:57:37,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 05:57:37,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 05:57:37,032 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 05:57:37,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 05:57:37,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 05:57:37,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 05:57:37,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 05:57:37,033 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 05:57:37,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 05:57:37,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 05:57:37,034 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 05:57:37,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 05:57:37,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 05:57:37,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 05:57:37,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 05:57:37,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 05:57:37,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 05:57:37,043 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 05:57:37,043 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 05:57:37,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 05:57:37,044 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 05:57:37,044 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 05:57:37,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 05:57:37,045 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 05:57:37,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 05:57:37,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 05:57:37,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 05:57:37,045 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 05:57:37,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 05:57:37,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 05:57:37,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 05:57:37,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 05:57:37,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 05:57:37,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 05:57:37,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 05:57:37,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 701a3cf9e7f8947837fea9293fda1abd0e3caa7fba9d99368bf2c80556060420 [2024-11-20 05:57:37,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 05:57:37,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 05:57:37,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 05:57:37,333 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 05:57:37,333 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 05:57:37,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-87.i [2024-11-20 05:57:38,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 05:57:38,999 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 05:57:39,000 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-87.i [2024-11-20 05:57:39,007 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/174cfe951/ac7be11d9dbf4de6b5bb2089a949a5c7/FLAGdcc822b16 [2024-11-20 05:57:39,387 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/174cfe951/ac7be11d9dbf4de6b5bb2089a949a5c7 [2024-11-20 05:57:39,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 05:57:39,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 05:57:39,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 05:57:39,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 05:57:39,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 05:57:39,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a54aaf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39, skipping insertion in model container [2024-11-20 05:57:39,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,418 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 05:57:39,600 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-87.i[917,930] [2024-11-20 05:57:39,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 05:57:39,651 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 05:57:39,665 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-87.i[917,930] [2024-11-20 05:57:39,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 05:57:39,699 INFO L204 MainTranslator]: Completed translation [2024-11-20 05:57:39,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39 WrapperNode [2024-11-20 05:57:39,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 05:57:39,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 05:57:39,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 05:57:39,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 05:57:39,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,744 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2024-11-20 05:57:39,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 05:57:39,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 05:57:39,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 05:57:39,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 05:57:39,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,761 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,775 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 05:57:39,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 05:57:39,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 05:57:39,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 05:57:39,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 05:57:39,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (1/1) ... [2024-11-20 05:57:39,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 05:57:39,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 05:57:39,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 05:57:39,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 05:57:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 05:57:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 05:57:39,878 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 05:57:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 05:57:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 05:57:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 05:57:39,955 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 05:57:39,957 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 05:57:40,200 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-20 05:57:40,201 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 05:57:40,219 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 05:57:40,219 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 05:57:40,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:57:40 BoogieIcfgContainer [2024-11-20 05:57:40,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 05:57:40,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 05:57:40,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 05:57:40,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 05:57:40,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:57:39" (1/3) ... [2024-11-20 05:57:40,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2bc065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:57:40, skipping insertion in model container [2024-11-20 05:57:40,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:39" (2/3) ... [2024-11-20 05:57:40,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2bc065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:57:40, skipping insertion in model container [2024-11-20 05:57:40,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:57:40" (3/3) ... [2024-11-20 05:57:40,230 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-87.i [2024-11-20 05:57:40,246 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 05:57:40,247 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 05:57:40,305 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 05:57:40,311 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;@bb39adf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 05:57:40,311 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 05:57:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 05:57:40,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 05:57:40,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:57:40,324 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:57:40,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:57:40,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:57:40,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1269976311, now seen corresponding path program 1 times [2024-11-20 05:57:40,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:57:40,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032029815] [2024-11-20 05:57:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:57:40,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:57:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:57:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:57:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:57:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:57:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 05:57:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:57:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 05:57:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:57:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 05:57:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:57:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:57:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:57:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:57:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:57:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:57:40,686 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 05:57:40,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:57:40,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032029815] [2024-11-20 05:57:40,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032029815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:57:40,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:57:40,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 05:57:40,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216674384] [2024-11-20 05:57:40,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:57:40,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 05:57:40,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:57:40,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 05:57:40,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 05:57:40,722 INFO L87 Difference]: Start difference. First operand has 46 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 05:57:40,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:57:40,747 INFO L93 Difference]: Finished difference Result 85 states and 142 transitions. [2024-11-20 05:57:40,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 05:57:40,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2024-11-20 05:57:40,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:57:40,760 INFO L225 Difference]: With dead ends: 85 [2024-11-20 05:57:40,760 INFO L226 Difference]: Without dead ends: 42 [2024-11-20 05:57:40,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 05:57:40,765 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 05:57:40,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 05:57:40,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-20 05:57:40,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-20 05:57:40,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 05:57:40,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2024-11-20 05:57:40,814 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 60 transitions. Word has length 90 [2024-11-20 05:57:40,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:57:40,815 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 60 transitions. [2024-11-20 05:57:40,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 05:57:40,815 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2024-11-20 05:57:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 05:57:40,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:57:40,821 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:57:40,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 05:57:40,821 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:57:40,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:57:40,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1270160951, now seen corresponding path program 1 times [2024-11-20 05:57:40,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:57:40,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399933594] [2024-11-20 05:57:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:57:40,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:57:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat