./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 9e92930e750196482f17f07849312ddc82a1b9515fee56924e2c0ca266f21be0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 12:31:07,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 12:31:07,721 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 12:31:07,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 12:31:07,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 12:31:07,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 12:31:07,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 12:31:07,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 12:31:07,753 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 12:31:07,753 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 12:31:07,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 12:31:07,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 12:31:07,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 12:31:07,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 12:31:07,754 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 12:31:07,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 12:31:07,755 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 12:31:07,755 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 12:31:07,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 12:31:07,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 12:31:07,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 12:31:07,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 12:31:07,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 12:31:07,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 12:31:07,757 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 9e92930e750196482f17f07849312ddc82a1b9515fee56924e2c0ca266f21be0 [2025-01-09 12:31:08,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 12:31:08,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 12:31:08,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 12:31:08,084 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 12:31:08,085 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 12:31:08,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i [2025-01-09 12:31:09,498 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4800217e9/7908d9528d764f9aaae61266434f3285/FLAG818821891 [2025-01-09 12:31:09,758 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 12:31:09,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i [2025-01-09 12:31:09,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4800217e9/7908d9528d764f9aaae61266434f3285/FLAG818821891 [2025-01-09 12:31:09,777 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4800217e9/7908d9528d764f9aaae61266434f3285 [2025-01-09 12:31:09,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 12:31:09,781 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 12:31:09,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 12:31:09,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 12:31:09,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 12:31:09,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:31:09" (1/1) ... [2025-01-09 12:31:09,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294e1bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:09, skipping insertion in model container [2025-01-09 12:31:09,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:31:09" (1/1) ... [2025-01-09 12:31:09,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 12:31:09,947 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i[917,930] [2025-01-09 12:31:09,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 12:31:09,995 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 12:31:10,005 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i[917,930] [2025-01-09 12:31:10,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 12:31:10,055 INFO L204 MainTranslator]: Completed translation [2025-01-09 12:31:10,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10 WrapperNode [2025-01-09 12:31:10,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 12:31:10,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 12:31:10,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 12:31:10,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 12:31:10,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,085 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2025-01-09 12:31:10,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 12:31:10,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 12:31:10,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 12:31:10,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 12:31:10,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,095 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,105 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]. [2025-01-09 12:31:10,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,109 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,113 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 12:31:10,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 12:31:10,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 12:31:10,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 12:31:10,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (1/1) ... [2025-01-09 12:31:10,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 12:31:10,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 12:31:10,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 12:31:10,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 12:31:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 12:31:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 12:31:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 12:31:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 12:31:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 12:31:10,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 12:31:10,226 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 12:31:10,227 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 12:31:10,389 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-01-09 12:31:10,389 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 12:31:10,399 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 12:31:10,402 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 12:31:10,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:31:10 BoogieIcfgContainer [2025-01-09 12:31:10,403 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 12:31:10,406 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 12:31:10,406 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 12:31:10,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 12:31:10,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:31:09" (1/3) ... [2025-01-09 12:31:10,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23774285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:31:10, skipping insertion in model container [2025-01-09 12:31:10,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:10" (2/3) ... [2025-01-09 12:31:10,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23774285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:31:10, skipping insertion in model container [2025-01-09 12:31:10,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:31:10" (3/3) ... [2025-01-09 12:31:10,414 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-47.i [2025-01-09 12:31:10,426 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 12:31:10,428 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-47.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 12:31:10,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 12:31:10,493 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;@656c8beb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 12:31:10,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 12:31:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-09 12:31:10,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-01-09 12:31:10,508 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 12:31:10,509 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 12:31:10,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 12:31:10,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 12:31:10,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1399169252, now seen corresponding path program 1 times [2025-01-09 12:31:10,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 12:31:10,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370141594] [2025-01-09 12:31:10,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:31:10,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 12:31:10,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-09 12:31:10,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-09 12:31:10,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:31:10,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 12:31:10,740 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2025-01-09 12:31:10,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 12:31:10,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370141594] [2025-01-09 12:31:10,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370141594] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 12:31:10,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733576622] [2025-01-09 12:31:10,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:31:10,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 12:31:10,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 12:31:10,746 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 12:31:10,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 12:31:10,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-09 12:31:10,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-09 12:31:10,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:31:10,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 12:31:10,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 12:31:10,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 12:31:10,896 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2025-01-09 12:31:10,899 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 12:31:10,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733576622] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 12:31:10,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 12:31:10,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 12:31:10,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054757346] [2025-01-09 12:31:10,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 12:31:10,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 12:31:10,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 12:31:10,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 12:31:10,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 12:31:10,928 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 12:31:10,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 12:31:10,944 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2025-01-09 12:31:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 12:31:10,946 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2025-01-09 12:31:10,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 12:31:10,951 INFO L225 Difference]: With dead ends: 76 [2025-01-09 12:31:10,951 INFO L226 Difference]: Without dead ends: 38 [2025-01-09 12:31:10,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 12:31:10,955 INFO L435 NwaCegarLoop]: 53 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, 53 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 [2025-01-09 12:31:10,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 12:31:10,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2025-01-09 12:31:10,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2025-01-09 12:31:10,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-09 12:31:10,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2025-01-09 12:31:10,984 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 65 [2025-01-09 12:31:10,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 12:31:10,984 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2025-01-09 12:31:10,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 12:31:10,985 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2025-01-09 12:31:10,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-01-09 12:31:10,986 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 12:31:10,986 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 12:31:10,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 12:31:11,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 12:31:11,189 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 12:31:11,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 12:31:11,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2007178586, now seen corresponding path program 1 times [2025-01-09 12:31:11,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 12:31:11,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129406229] [2025-01-09 12:31:11,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:31:11,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 12:31:11,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-09 12:31:11,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-09 12:31:11,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:31:11,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 12:31:11,294 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 12:31:11,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-09 12:31:11,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-09 12:31:11,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:31:11,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 12:31:11,399 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 12:31:11,399 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 12:31:11,400 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 12:31:11,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 12:31:11,404 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 12:31:11,465 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 12:31:11,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 12:31:11 BoogieIcfgContainer [2025-01-09 12:31:11,472 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 12:31:11,472 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 12:31:11,472 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 12:31:11,473 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 12:31:11,473 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:31:10" (3/4) ... [2025-01-09 12:31:11,476 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 12:31:11,476 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 12:31:11,478 INFO L158 Benchmark]: Toolchain (without parser) took 1696.62ms. Allocated memory is still 167.8MB. Free memory was 129.6MB in the beginning and 55.8MB in the end (delta: 73.8MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2025-01-09 12:31:11,478 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 12:31:11,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.23ms. Allocated memory is still 167.8MB. Free memory was 129.6MB in the beginning and 117.5MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 12:31:11,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.07ms. Allocated memory is still 167.8MB. Free memory was 117.5MB in the beginning and 115.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 12:31:11,480 INFO L158 Benchmark]: Boogie Preprocessor took 29.42ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 114.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 12:31:11,480 INFO L158 Benchmark]: RCFGBuilder took 286.86ms. Allocated memory is still 167.8MB. Free memory was 114.1MB in the beginning and 100.8MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 12:31:11,480 INFO L158 Benchmark]: TraceAbstraction took 1066.21ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 56.3MB in the end (delta: 44.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-01-09 12:31:11,480 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 167.8MB. Free memory is still 55.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 12:31:11,482 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.23ms. Allocated memory is still 167.8MB. Free memory was 129.6MB in the beginning and 117.5MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.07ms. Allocated memory is still 167.8MB. Free memory was 117.5MB in the beginning and 115.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.42ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 114.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.86ms. Allocated memory is still 167.8MB. Free memory was 114.1MB in the beginning and 100.8MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1066.21ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 56.3MB in the end (delta: 44.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 167.8MB. Free memory is still 55.8MB. 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 someUnaryDOUBLEoperation at line 53, overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someBinaryDOUBLEComparisonOperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 63. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.575; [L23] double var_1_8 = 3.5; [L24] signed char var_1_9 = 16; [L25] signed char var_1_10 = 16; [L26] signed char var_1_11 = 4; [L27] signed long int var_1_12 = 8; [L28] unsigned char var_1_13 = 1; [L29] unsigned char var_1_14 = 1; [L30] double var_1_15 = 3.8; [L31] signed long int last_1_var_1_12 = 8; VAL [isInitial=0, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_8=7/2, var_1_9=16] [L85] isInitial = 1 [L86] FCALL initially() [L88] CALL updateLastVariables() [L78] last_1_var_1_12 = var_1_12 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_8=7/2, var_1_9=16] [L88] RET updateLastVariables() [L89] CALL updateVariables() [L62] var_1_8 = __VERIFIER_nondet_double() [L63] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L63] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L64] var_1_10 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L65] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L66] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L66] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L67] var_1_11 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L68] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L69] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L69] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L70] var_1_13 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L71] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L72] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L72] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L73] var_1_14 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L74] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L75] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L75] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L89] RET updateVariables() [L90] CALL step() [L35] COND FALSE !(-4 > last_1_var_1_12) [L40] var_1_9 = var_1_10 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=-63] [L42] unsigned char stepLocal_0 = ! var_1_13; VAL [isInitial=1, last_1_var_1_12=8, stepLocal_0=0, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=-63] [L43] COND FALSE !(stepLocal_0 || var_1_14) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=-63] [L50] var_1_15 = var_1_8 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=983/40, var_1_8=53, var_1_9=-63] [L51] COND TRUE var_1_15 <= var_1_15 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=983/40, var_1_8=53, var_1_9=-63] [L52] COND TRUE (var_1_12 + var_1_12) >= (var_1_12 + var_1_9) [L53] var_1_1 = ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=53, var_1_8=53, var_1_9=-63] [L90] RET step() [L91] CALL, EXPR property() [L81-L82] return ((((var_1_15 <= var_1_15) ? (((var_1_12 + var_1_12) >= (var_1_12 + var_1_9)) ? (var_1_1 == ((double) ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) : 1) : ((var_1_12 > var_1_9) ? (var_1_1 == ((double) var_1_8)) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? (var_1_9 == ((signed char) ((((var_1_10 + var_1_11) < 0 ) ? -(var_1_10 + var_1_11) : (var_1_10 + var_1_11))))) : 1) : (var_1_9 == ((signed char) var_1_10)))) && (((! var_1_13) || var_1_14) ? ((! var_1_14) ? (var_1_12 == ((signed long int) (((((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))) < 0 ) ? -((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))) : ((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))))))) : (var_1_12 == ((signed long int) var_1_9))) : 1)) && (var_1_15 == ((double) var_1_8)) ; VAL [\result=0, isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=53, var_1_8=53, var_1_9=-63] [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=53, var_1_8=53, var_1_9=-63] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=8, var_1_10=-63, var_1_11=-63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=53, var_1_1=53, var_1_8=53, var_1_9=-63] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 53 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 272/288 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 12:31:11,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 9e92930e750196482f17f07849312ddc82a1b9515fee56924e2c0ca266f21be0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 12:31:13,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 12:31:13,948 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 12:31:13,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 12:31:13,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 12:31:13,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 12:31:13,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 12:31:13,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 12:31:13,978 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 12:31:13,978 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 12:31:13,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 12:31:13,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 12:31:13,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 12:31:13,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 12:31:13,979 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 12:31:13,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 12:31:13,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 12:31:13,979 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 12:31:13,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 12:31:13,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 12:31:13,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 12:31:13,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 12:31:13,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 12:31:13,980 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 12:31:13,980 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 12:31:13,980 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 12:31:13,980 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 12:31:13,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 12:31:13,980 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 12:31:13,980 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 12:31:13,981 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 12:31:13,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 12:31:13,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 12:31:13,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 12:31:13,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 12:31:13,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 12:31:13,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 12:31:13,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 12:31:13,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 12:31:13,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 12:31:13,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 12:31:13,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 12:31:13,982 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 12:31:13,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 12:31:13,982 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 12:31:13,982 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 12:31:13,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 12:31:13,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 12:31:13,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 12:31:13,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 12:31:13,983 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 9e92930e750196482f17f07849312ddc82a1b9515fee56924e2c0ca266f21be0 [2025-01-09 12:31:14,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 12:31:14,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 12:31:14,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 12:31:14,324 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 12:31:14,324 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 12:31:14,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i [2025-01-09 12:31:15,682 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3b0a2cd56/75565f9de8ef4becbbaef948f18476b5/FLAG53a981270 [2025-01-09 12:31:15,930 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 12:31:15,931 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i [2025-01-09 12:31:15,940 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3b0a2cd56/75565f9de8ef4becbbaef948f18476b5/FLAG53a981270 [2025-01-09 12:31:15,961 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3b0a2cd56/75565f9de8ef4becbbaef948f18476b5 [2025-01-09 12:31:15,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 12:31:15,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 12:31:15,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 12:31:15,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 12:31:15,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 12:31:15,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:31:15" (1/1) ... [2025-01-09 12:31:15,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0bcca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:15, skipping insertion in model container [2025-01-09 12:31:15,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:31:15" (1/1) ... [2025-01-09 12:31:15,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 12:31:16,123 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i[917,930] [2025-01-09 12:31:16,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 12:31:16,198 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 12:31:16,210 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i[917,930] [2025-01-09 12:31:16,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 12:31:16,251 INFO L204 MainTranslator]: Completed translation [2025-01-09 12:31:16,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16 WrapperNode [2025-01-09 12:31:16,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 12:31:16,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 12:31:16,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 12:31:16,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 12:31:16,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,287 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2025-01-09 12:31:16,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 12:31:16,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 12:31:16,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 12:31:16,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 12:31:16,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,299 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,310 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]. [2025-01-09 12:31:16,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,318 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,321 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 12:31:16,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 12:31:16,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 12:31:16,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 12:31:16,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (1/1) ... [2025-01-09 12:31:16,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 12:31:16,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 12:31:16,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 12:31:16,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 12:31:16,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 12:31:16,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 12:31:16,385 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 12:31:16,386 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 12:31:16,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 12:31:16,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 12:31:16,440 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 12:31:16,442 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 12:31:16,651 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-01-09 12:31:16,652 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 12:31:16,662 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 12:31:16,662 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 12:31:16,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:31:16 BoogieIcfgContainer [2025-01-09 12:31:16,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 12:31:16,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 12:31:16,665 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 12:31:16,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 12:31:16,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:31:15" (1/3) ... [2025-01-09 12:31:16,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e095991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:31:16, skipping insertion in model container [2025-01-09 12:31:16,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:31:16" (2/3) ... [2025-01-09 12:31:16,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e095991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:31:16, skipping insertion in model container [2025-01-09 12:31:16,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:31:16" (3/3) ... [2025-01-09 12:31:16,675 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-47.i [2025-01-09 12:31:16,687 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 12:31:16,690 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-47.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 12:31:16,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 12:31:16,757 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;@283d93f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 12:31:16,757 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 12:31:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-09 12:31:16,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-01-09 12:31:16,769 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 12:31:16,770 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 12:31:16,770 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 12:31:16,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 12:31:16,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1399169252, now seen corresponding path program 1 times [2025-01-09 12:31:16,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 12:31:16,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646635484] [2025-01-09 12:31:16,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:31:16,787 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 [2025-01-09 12:31:16,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 12:31:16,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/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) [2025-01-09 12:31:16,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 12:31:16,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-09 12:31:16,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-09 12:31:16,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:31:16,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 12:31:16,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 12:31:16,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 12:31:16,983 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-01-09 12:31:16,984 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 12:31:16,985 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 12:31:16,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646635484] [2025-01-09 12:31:16,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646635484] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 12:31:16,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 12:31:16,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 12:31:16,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172346992] [2025-01-09 12:31:16,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 12:31:16,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 12:31:16,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 12:31:17,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 12:31:17,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 12:31:17,012 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 12:31:17,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 12:31:17,036 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2025-01-09 12:31:17,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 12:31:17,038 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2025-01-09 12:31:17,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 12:31:17,043 INFO L225 Difference]: With dead ends: 76 [2025-01-09 12:31:17,044 INFO L226 Difference]: Without dead ends: 38 [2025-01-09 12:31:17,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 12:31:17,050 INFO L435 NwaCegarLoop]: 53 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, 53 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 [2025-01-09 12:31:17,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 12:31:17,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2025-01-09 12:31:17,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2025-01-09 12:31:17,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-09 12:31:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2025-01-09 12:31:17,091 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 65 [2025-01-09 12:31:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 12:31:17,092 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2025-01-09 12:31:17,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 12:31:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2025-01-09 12:31:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-01-09 12:31:17,096 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 12:31:17,096 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 12:31:17,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 12:31:17,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/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 [2025-01-09 12:31:17,297 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 12:31:17,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 12:31:17,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2007178586, now seen corresponding path program 1 times [2025-01-09 12:31:17,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 12:31:17,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814840978] [2025-01-09 12:31:17,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 12:31:17,299 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 [2025-01-09 12:31:17,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 12:31:17,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/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) [2025-01-09 12:31:17,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 12:31:17,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-09 12:31:17,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-09 12:31:17,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 12:31:17,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 12:31:17,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 12:31:17,418 INFO L279 TraceCheckSpWp]: Computing forward predicates...