./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-73.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_loopvsstraightlinecode_25-while_file-73.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 a1bf08deab21e7c527b53e29ab73d8419b59d4473f6d72f64c5dfeebc180cee2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 13:34:02,687 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 13:34:02,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 13:34:02,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 13:34:02,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 13:34:02,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 13:34:02,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 13:34:02,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 13:34:02,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 13:34:02,766 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 13:34:02,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 13:34:02,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 13:34:02,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 13:34:02,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 13:34:02,768 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 13:34:02,769 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:34:02,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:34:02,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 13:34:02,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 13:34:02,769 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 -> a1bf08deab21e7c527b53e29ab73d8419b59d4473f6d72f64c5dfeebc180cee2 [2025-01-09 13:34:02,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 13:34:02,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 13:34:02,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 13:34:02,987 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 13:34:02,988 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 13:34:02,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-73.i [2025-01-09 13:34:04,086 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6abbe8c13/1f851fc816d94961b507932a6b92c8fc/FLAGf12211961 [2025-01-09 13:34:04,317 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 13:34:04,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-73.i [2025-01-09 13:34:04,325 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6abbe8c13/1f851fc816d94961b507932a6b92c8fc/FLAGf12211961 [2025-01-09 13:34:04,343 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6abbe8c13/1f851fc816d94961b507932a6b92c8fc [2025-01-09 13:34:04,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 13:34:04,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 13:34:04,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 13:34:04,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 13:34:04,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 13:34:04,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f39a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04, skipping insertion in model container [2025-01-09 13:34:04,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,369 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 13:34:04,468 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_loopvsstraightlinecode_25-while_file-73.i[915,928] [2025-01-09 13:34:04,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 13:34:04,516 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 13:34:04,524 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_loopvsstraightlinecode_25-while_file-73.i[915,928] [2025-01-09 13:34:04,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 13:34:04,561 INFO L204 MainTranslator]: Completed translation [2025-01-09 13:34:04,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04 WrapperNode [2025-01-09 13:34:04,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 13:34:04,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 13:34:04,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 13:34:04,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 13:34:04,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,598 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2025-01-09 13:34:04,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 13:34:04,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 13:34:04,599 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 13:34:04,599 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 13:34:04,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,607 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,616 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 13:34:04,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,620 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,620 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 13:34:04,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 13:34:04,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 13:34:04,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 13:34:04,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (1/1) ... [2025-01-09 13:34:04,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:34:04,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 13:34:04,658 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 13:34:04,661 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 13:34:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 13:34:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 13:34:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 13:34:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 13:34:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 13:34:04,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 13:34:04,722 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 13:34:04,724 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 13:34:04,856 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-01-09 13:34:04,856 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 13:34:04,862 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 13:34:04,862 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 13:34:04,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:34:04 BoogieIcfgContainer [2025-01-09 13:34:04,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 13:34:04,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 13:34:04,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 13:34:04,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 13:34:04,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:34:04" (1/3) ... [2025-01-09 13:34:04,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e13162e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:34:04, skipping insertion in model container [2025-01-09 13:34:04,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:04" (2/3) ... [2025-01-09 13:34:04,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e13162e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:34:04, skipping insertion in model container [2025-01-09 13:34:04,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:34:04" (3/3) ... [2025-01-09 13:34:04,869 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-73.i [2025-01-09 13:34:04,879 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 13:34:04,880 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-73.i that has 2 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 13:34:04,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 13:34:04,934 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;@90e5cba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 13:34:04,934 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 13:34:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 26 states have (on average 1.3461538461538463) 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 13:34:04,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-09 13:34:04,943 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:34:04,944 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] [2025-01-09 13:34:04,945 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:34:04,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:34:04,949 INFO L85 PathProgramCache]: Analyzing trace with hash -439208116, now seen corresponding path program 1 times [2025-01-09 13:34:04,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:34:04,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572935669] [2025-01-09 13:34:04,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:34:04,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:34:05,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-09 13:34:05,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-09 13:34:05,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:34:05,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:34:05,542 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-09 13:34:05,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 13:34:05,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572935669] [2025-01-09 13:34:05,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572935669] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:34:05,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 13:34:05,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 13:34:05,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23972931] [2025-01-09 13:34:05,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:34:05,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 13:34:05,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 13:34:05,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 13:34:05,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 13:34:05,561 INFO L87 Difference]: Start difference. First operand has 38 states, 26 states have (on average 1.3461538461538463) 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) Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2025-01-09 13:34:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:34:05,704 INFO L93 Difference]: Finished difference Result 103 states and 169 transitions. [2025-01-09 13:34:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 13:34:05,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 63 [2025-01-09 13:34:05,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:34:05,710 INFO L225 Difference]: With dead ends: 103 [2025-01-09 13:34:05,710 INFO L226 Difference]: Without dead ends: 68 [2025-01-09 13:34:05,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 13:34:05,715 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 41 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 13:34:05,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 150 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 13:34:05,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2025-01-09 13:34:05,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2025-01-09 13:34:05,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-09 13:34:05,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2025-01-09 13:34:05,753 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 63 [2025-01-09 13:34:05,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:34:05,753 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2025-01-09 13:34:05,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2025-01-09 13:34:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2025-01-09 13:34:05,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-01-09 13:34:05,755 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:34:05,755 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] [2025-01-09 13:34:05,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 13:34:05,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:34:05,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:34:05,758 INFO L85 PathProgramCache]: Analyzing trace with hash 240381643, now seen corresponding path program 1 times [2025-01-09 13:34:05,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 13:34:05,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115894157] [2025-01-09 13:34:05,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:34:05,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 13:34:05,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-09 13:34:05,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-09 13:34:05,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:34:05,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 13:34:05,806 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 13:34:05,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-09 13:34:05,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-09 13:34:05,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:34:05,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 13:34:05,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 13:34:05,869 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 13:34:05,870 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 13:34:05,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 13:34:05,873 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 13:34:05,905 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 13:34:05,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:34:05 BoogieIcfgContainer [2025-01-09 13:34:05,911 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 13:34:05,912 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 13:34:05,912 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 13:34:05,912 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 13:34:05,912 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:34:04" (3/4) ... [2025-01-09 13:34:05,914 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 13:34:05,914 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 13:34:05,915 INFO L158 Benchmark]: Toolchain (without parser) took 1569.40ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 61.2MB in the end (delta: 48.8MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2025-01-09 13:34:05,915 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 13:34:05,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.61ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 97.1MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 13:34:05,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.70ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 95.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 13:34:05,918 INFO L158 Benchmark]: Boogie Preprocessor took 30.35ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 91.9MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 13:34:05,918 INFO L158 Benchmark]: RCFGBuilder took 232.31ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 77.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 13:34:05,918 INFO L158 Benchmark]: TraceAbstraction took 1047.24ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 62.0MB in the end (delta: 14.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2025-01-09 13:34:05,919 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 142.6MB. Free memory was 62.0MB in the beginning and 61.2MB in the end (delta: 784.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 13:34:05,920 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.61ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 97.1MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.70ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 95.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.35ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 91.9MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 232.31ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 77.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1047.24ms. Allocated memory is still 142.6MB. Free memory was 76.3MB in the beginning and 62.0MB in the end (delta: 14.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 142.6MB. Free memory was 62.0MB in the beginning and 61.2MB in the end (delta: 784.6kB). 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 24, overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 65. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.5; [L23] unsigned char var_1_6 = 1; [L24] double var_1_7 = -0.41; [L25] unsigned char var_1_8 = 25; [L26] unsigned char var_1_9 = 100; [L27] unsigned char var_1_10 = 1; [L28] unsigned char var_1_12 = 10; [L29] signed short int var_1_13 = -64; [L30] signed long int var_1_14 = 10; [L31] signed short int var_1_15 = -1; [L32] unsigned char last_1_var_1_8 = 25; [L33] signed long int last_1_var_1_14 = 10; VAL [isInitial=0, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L85] isInitial = 1 [L86] FCALL initially() [L88] CALL updateLastVariables() [L77] last_1_var_1_8 = var_1_8 [L78] last_1_var_1_14 = var_1_14 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L88] RET updateLastVariables() [L89] CALL updateVariables() [L61] var_1_6 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_8=25, var_1_9=100] [L62] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_8=25, var_1_9=100] [L63] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L63] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L64] var_1_7 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L65] RET assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L66] var_1_9 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25] [L67] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25] [L68] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L68] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L69] var_1_10 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L70] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L71] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L71] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L72] var_1_12 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L73] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L74] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L74] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L89] RET updateVariables() [L90] CALL step() [L37] signed long int stepLocal_0 = (((last_1_var_1_8) > ((last_1_var_1_14 + last_1_var_1_14))) ? (last_1_var_1_8) : ((last_1_var_1_14 + last_1_var_1_14))); VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, stepLocal_0=25, var_1_10=10, var_1_12=5, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L38] COND TRUE last_1_var_1_14 <= stepLocal_0 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=10] [L39] COND FALSE !(! var_1_6) [L42] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=105, var_1_6=1, var_1_7=105, var_1_8=25, var_1_9=10] [L45] COND TRUE \read(var_1_6) [L46] var_1_8 = ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=105, var_1_6=1, var_1_7=105, var_1_8=10, var_1_9=10] [L52] COND TRUE (9.99999999999995E13f + var_1_1) >= var_1_1 [L53] var_1_13 = (-4 + var_1_10) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=6, var_1_14=10, var_1_15=-1, var_1_1=105, var_1_6=1, var_1_7=105, var_1_8=10, var_1_9=10] [L57] var_1_15 = var_1_12 [L58] var_1_14 = var_1_15 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=5, var_1_1=105, var_1_6=1, var_1_7=105, var_1_8=10, var_1_9=10] [L90] RET step() [L91] CALL, EXPR property() [L81-L82] return (((((last_1_var_1_14 <= ((((last_1_var_1_8) > ((last_1_var_1_14 + last_1_var_1_14))) ? (last_1_var_1_8) : ((last_1_var_1_14 + last_1_var_1_14))))) ? ((! var_1_6) ? (var_1_1 == ((double) var_1_7)) : (var_1_1 == ((double) var_1_7))) : 1) && (var_1_6 ? (var_1_8 == ((unsigned char) ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))))) : ((var_1_1 < (var_1_1 + var_1_7)) ? (var_1_8 == ((unsigned char) var_1_12)) : 1))) && (((9.99999999999995E13f + var_1_1) >= var_1_1) ? (var_1_13 == ((signed short int) (-4 + var_1_10))) : (var_1_13 == ((signed short int) (((((var_1_9) < (8)) ? (var_1_9) : (8))) - 32))))) && (var_1_14 == ((signed long int) var_1_15))) && (var_1_15 == ((signed short int) var_1_12)) ; VAL [\result=0, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=5, var_1_1=105, var_1_6=1, var_1_7=105, var_1_8=10, var_1_9=10] [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=5, var_1_1=105, var_1_6=1, var_1_7=105, var_1_8=10, var_1_9=10] [L19] reach_error() VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=10, var_1_12=5, var_1_13=6, var_1_14=5, var_1_15=5, var_1_1=105, var_1_6=1, var_1_7=105, var_1_8=10, var_1_9=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 150 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 106 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 44 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=1, InterpolantAutomatonStates: 5, 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, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 144/144 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 13:34:05,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/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_loopvsstraightlinecode_25-while_file-73.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 a1bf08deab21e7c527b53e29ab73d8419b59d4473f6d72f64c5dfeebc180cee2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 13:34:07,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 13:34:07,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 13:34:07,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 13:34:07,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 13:34:07,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 13:34:07,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 13:34:07,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 13:34:07,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 13:34:07,870 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 13:34:07,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 13:34:07,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 13:34:07,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 13:34:07,872 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 13:34:07,872 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 13:34:07,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 13:34:07,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 13:34:07,872 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 13:34:07,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 13:34:07,873 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 13:34:07,874 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 13:34:07,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 13:34:07,874 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 13:34:07,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 13:34:07,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:34:07,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 13:34:07,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 13:34:07,874 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 13:34:07,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 13:34:07,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:34:07,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 13:34:07,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 13:34:07,875 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 13:34:07,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 13:34:07,875 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 13:34:07,875 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 13:34:07,875 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 13:34:07,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 13:34:07,875 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 13:34:07,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 13:34:07,875 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 -> a1bf08deab21e7c527b53e29ab73d8419b59d4473f6d72f64c5dfeebc180cee2 [2025-01-09 13:34:08,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 13:34:08,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 13:34:08,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 13:34:08,119 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 13:34:08,119 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 13:34:08,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-73.i [2025-01-09 13:34:09,273 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb1921df3/ff2b7528255a45ada8e30545ac346d71/FLAGbdf68e8d6 [2025-01-09 13:34:09,483 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 13:34:09,484 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-73.i [2025-01-09 13:34:09,490 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb1921df3/ff2b7528255a45ada8e30545ac346d71/FLAGbdf68e8d6 [2025-01-09 13:34:09,852 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cb1921df3/ff2b7528255a45ada8e30545ac346d71 [2025-01-09 13:34:09,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 13:34:09,854 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 13:34:09,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 13:34:09,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 13:34:09,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 13:34:09,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:34:09" (1/1) ... [2025-01-09 13:34:09,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e082abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:09, skipping insertion in model container [2025-01-09 13:34:09,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:34:09" (1/1) ... [2025-01-09 13:34:09,874 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 13:34:09,979 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_loopvsstraightlinecode_25-while_file-73.i[915,928] [2025-01-09 13:34:10,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 13:34:10,016 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 13:34:10,025 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_loopvsstraightlinecode_25-while_file-73.i[915,928] [2025-01-09 13:34:10,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 13:34:10,048 INFO L204 MainTranslator]: Completed translation [2025-01-09 13:34:10,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10 WrapperNode [2025-01-09 13:34:10,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 13:34:10,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 13:34:10,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 13:34:10,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 13:34:10,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,073 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2025-01-09 13:34:10,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 13:34:10,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 13:34:10,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 13:34:10,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 13:34:10,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,099 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 13:34:10,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,107 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 13:34:10,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 13:34:10,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 13:34:10,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 13:34:10,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (1/1) ... [2025-01-09 13:34:10,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 13:34:10,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 13:34:10,156 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 13:34:10,160 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 13:34:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 13:34:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 13:34:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 13:34:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 13:34:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 13:34:10,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 13:34:10,227 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 13:34:10,228 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 13:34:11,744 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-01-09 13:34:11,744 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 13:34:11,751 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 13:34:11,751 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 13:34:11,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:34:11 BoogieIcfgContainer [2025-01-09 13:34:11,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 13:34:11,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 13:34:11,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 13:34:11,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 13:34:11,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:34:09" (1/3) ... [2025-01-09 13:34:11,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8f7afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:34:11, skipping insertion in model container [2025-01-09 13:34:11,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:34:10" (2/3) ... [2025-01-09 13:34:11,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c8f7afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:34:11, skipping insertion in model container [2025-01-09 13:34:11,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:34:11" (3/3) ... [2025-01-09 13:34:11,758 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-73.i [2025-01-09 13:34:11,767 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 13:34:11,769 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-73.i that has 2 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 13:34:11,800 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 13:34:11,807 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;@1daea140, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 13:34:11,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 13:34:11,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 26 states have (on average 1.3461538461538463) 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 13:34:11,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-09 13:34:11,815 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:34:11,815 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] [2025-01-09 13:34:11,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:34:11,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:34:11,818 INFO L85 PathProgramCache]: Analyzing trace with hash -439208116, now seen corresponding path program 1 times [2025-01-09 13:34:11,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 13:34:11,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873427026] [2025-01-09 13:34:11,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:34:11,825 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 13:34:11,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 13:34:11,827 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 13:34:11,829 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 13:34:11,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-09 13:34:12,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-09 13:34:12,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:34:12,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:34:12,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 13:34:12,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 13:34:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-09 13:34:12,487 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 13:34:12,487 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 13:34:12,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873427026] [2025-01-09 13:34:12,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873427026] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 13:34:12,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 13:34:12,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 13:34:12,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761303823] [2025-01-09 13:34:12,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 13:34:12,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 13:34:12,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 13:34:12,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 13:34:12,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 13:34:12,505 INFO L87 Difference]: Start difference. First operand has 38 states, 26 states have (on average 1.3461538461538463) 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) Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2025-01-09 13:34:14,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 13:34:14,088 INFO L93 Difference]: Finished difference Result 105 states and 172 transitions. [2025-01-09 13:34:14,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 13:34:14,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 63 [2025-01-09 13:34:14,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 13:34:14,108 INFO L225 Difference]: With dead ends: 105 [2025-01-09 13:34:14,108 INFO L226 Difference]: Without dead ends: 70 [2025-01-09 13:34:14,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 13:34:14,113 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 36 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-09 13:34:14,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 154 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-09 13:34:14,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2025-01-09 13:34:14,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 56. [2025-01-09 13:34:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-09 13:34:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2025-01-09 13:34:14,146 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 63 [2025-01-09 13:34:14,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 13:34:14,147 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2025-01-09 13:34:14,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2025-01-09 13:34:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2025-01-09 13:34:14,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-01-09 13:34:14,148 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 13:34:14,150 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] [2025-01-09 13:34:14,158 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 13:34:14,351 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 13:34:14,351 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 13:34:14,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 13:34:14,352 INFO L85 PathProgramCache]: Analyzing trace with hash 240381643, now seen corresponding path program 1 times [2025-01-09 13:34:14,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 13:34:14,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507344648] [2025-01-09 13:34:14,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 13:34:14,354 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 13:34:14,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 13:34:14,356 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 13:34:14,358 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 13:34:14,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-09 13:34:14,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-09 13:34:14,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 13:34:14,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 13:34:14,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-09 13:34:14,521 INFO L279 TraceCheckSpWp]: Computing forward predicates...