./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:16:09,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:16:09,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 15:16:09,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:16:09,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:16:09,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:16:09,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:16:09,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:16:09,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:16:09,807 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:16:09,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:16:09,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:16:09,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:16:09,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:16:09,807 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:16:09,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:16:09,808 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:16:09,809 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:16:09,809 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:16:09,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:16:09,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:16:09,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:16:09,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:09,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:16:09,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:16:09,809 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:16:09,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:16:09,810 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 15:16:09,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 15:16:09,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:16:09,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:16:09,810 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:16:09,810 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:16:09,810 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/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 -> ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 [2025-03-08 15:16:10,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:16:10,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:16:10,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:16:10,026 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:16:10,026 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:16:10,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i [2025-03-08 15:16:11,138 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9655f63a/51fff35a5ee14e108c75a27ebca1d7eb/FLAG645abb55d [2025-03-08 15:16:11,363 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:16:11,363 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i [2025-03-08 15:16:11,381 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9655f63a/51fff35a5ee14e108c75a27ebca1d7eb/FLAG645abb55d [2025-03-08 15:16:11,413 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9655f63a/51fff35a5ee14e108c75a27ebca1d7eb [2025-03-08 15:16:11,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:16:11,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:16:11,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:11,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:16:11,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:16:11,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e42eceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11, skipping insertion in model container [2025-03-08 15:16:11,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:16:11,534 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2025-03-08 15:16:11,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:11,570 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:16:11,579 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2025-03-08 15:16:11,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:11,599 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:16:11,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11 WrapperNode [2025-03-08 15:16:11,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:11,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:11,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:16:11,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:16:11,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,621 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 70 [2025-03-08 15:16:11,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:11,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:16:11,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:16:11,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:16:11,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,631 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,642 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]. [2025-03-08 15:16:11,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,645 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:16:11,652 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:16:11,652 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:16:11,652 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:16:11,653 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (1/1) ... [2025-03-08 15:16:11,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:11,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:16:11,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 15:16:11,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 15:16:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:16:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:16:11,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:16:11,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 15:16:11,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:16:11,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:16:11,746 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:16:11,747 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:16:11,889 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-03-08 15:16:11,891 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:16:11,898 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:16:11,898 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:16:11,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:11 BoogieIcfgContainer [2025-03-08 15:16:11,899 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:16:11,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:16:11,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:16:11,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:16:11,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:16:11" (1/3) ... [2025-03-08 15:16:11,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35620aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:11, skipping insertion in model container [2025-03-08 15:16:11,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:11" (2/3) ... [2025-03-08 15:16:11,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35620aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:11, skipping insertion in model container [2025-03-08 15:16:11,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:11" (3/3) ... [2025-03-08 15:16:11,906 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-49.i [2025-03-08 15:16:11,915 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:16:11,917 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-49.i that has 2 procedures, 33 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:16:11,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:16:11,971 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;@475f6874, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:16:11,972 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:16:11,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 15:16:11,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 15:16:11,979 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:11,979 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:16:11,980 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:11,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:11,984 INFO L85 PathProgramCache]: Analyzing trace with hash 293131902, now seen corresponding path program 1 times [2025-03-08 15:16:11,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:16:11,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920860235] [2025-03-08 15:16:11,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:11,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:16:12,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 15:16:12,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 15:16:12,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:12,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:12,144 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2025-03-08 15:16:12,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:16:12,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920860235] [2025-03-08 15:16:12,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920860235] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:16:12,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281247085] [2025-03-08 15:16:12,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:12,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:16:12,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:16:12,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 15:16:12,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 15:16:12,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 15:16:12,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 15:16:12,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:12,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:12,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:16:12,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:16:12,250 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2025-03-08 15:16:12,250 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:16:12,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281247085] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:16:12,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 15:16:12,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 15:16:12,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138712055] [2025-03-08 15:16:12,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:16:12,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:16:12,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:16:12,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:16:12,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:12,268 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 15:16:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:16:12,279 INFO L93 Difference]: Finished difference Result 60 states and 91 transitions. [2025-03-08 15:16:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:16:12,282 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2025-03-08 15:16:12,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:16:12,286 INFO L225 Difference]: With dead ends: 60 [2025-03-08 15:16:12,286 INFO L226 Difference]: Without dead ends: 30 [2025-03-08 15:16:12,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:12,291 INFO L435 NwaCegarLoop]: 39 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, 39 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 [2025-03-08 15:16:12,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:16:12,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-03-08 15:16:12,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-03-08 15:16:12,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 15:16:12,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2025-03-08 15:16:12,316 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 55 [2025-03-08 15:16:12,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:16:12,316 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2025-03-08 15:16:12,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 15:16:12,316 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2025-03-08 15:16:12,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 15:16:12,317 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:12,319 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:16:12,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 15:16:12,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 15:16:12,521 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:12,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:12,522 INFO L85 PathProgramCache]: Analyzing trace with hash -923853728, now seen corresponding path program 1 times [2025-03-08 15:16:12,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:16:12,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446381363] [2025-03-08 15:16:12,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:12,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:16:12,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 15:16:12,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 15:16:12,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:12,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:16:12,562 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 15:16:12,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 15:16:12,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 15:16:12,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:12,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:16:12,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 15:16:12,614 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 15:16:12,615 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 15:16:12,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 15:16:12,620 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-08 15:16:12,648 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 15:16:12,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:16:12 BoogieIcfgContainer [2025-03-08 15:16:12,655 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 15:16:12,656 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 15:16:12,657 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 15:16:12,657 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 15:16:12,658 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:11" (3/4) ... [2025-03-08 15:16:12,659 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 15:16:12,660 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 15:16:12,660 INFO L158 Benchmark]: Toolchain (without parser) took 1244.04ms. Allocated memory is still 167.8MB. Free memory was 129.9MB in the beginning and 65.7MB in the end (delta: 64.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-08 15:16:12,660 INFO L158 Benchmark]: CDTParser took 0.92ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:12,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.44ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 118.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:12,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.91ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 116.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:12,662 INFO L158 Benchmark]: Boogie Preprocessor took 28.20ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 115.4MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:12,662 INFO L158 Benchmark]: IcfgBuilder took 246.91ms. Allocated memory is still 167.8MB. Free memory was 115.4MB in the beginning and 102.7MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:12,662 INFO L158 Benchmark]: TraceAbstraction took 754.80ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 65.7MB in the end (delta: 36.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-08 15:16:12,662 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 167.8MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:12,664 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.44ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 118.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.91ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 116.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.20ms. Allocated memory is still 167.8MB. Free memory was 116.5MB in the beginning and 115.4MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 246.91ms. Allocated memory is still 167.8MB. Free memory was 115.4MB in the beginning and 102.7MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 754.80ms. Allocated memory is still 167.8MB. Free memory was 102.0MB in the beginning and 65.7MB in the end (delta: 36.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 167.8MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryFLOATComparisonOperation at line 56, overapproximation of someBinaryFLOATComparisonOperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 0.25; [L23] signed long int var_1_2 = 64; [L24] signed long int var_1_3 = -1; [L25] signed long int var_1_4 = -256; [L26] float var_1_5 = 3.5; [L27] float var_1_6 = 32.5; VAL [isInitial=0, var_1_1=1/4, var_1_2=64, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L65] isInitial = 1 [L66] FCALL initially() [L67] COND TRUE 1 [L68] FCALL updateLastVariables() [L69] CALL updateVariables() [L44] var_1_2 = __VERIFIER_nondet_long() [L45] CALL assume_abort_if_not(var_1_2 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L45] RET assume_abort_if_not(var_1_2 >= -2147483648) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L46] CALL assume_abort_if_not(var_1_2 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L46] RET assume_abort_if_not(var_1_2 <= 2147483647) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-1, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L47] var_1_3 = __VERIFIER_nondet_long() [L48] CALL assume_abort_if_not(var_1_3 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L48] RET assume_abort_if_not(var_1_3 >= -2147483648) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L49] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L49] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=-256, var_1_5=7/2, var_1_6=65/2] [L50] var_1_4 = __VERIFIER_nondet_long() [L51] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L51] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L52] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L52] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_5=7/2, var_1_6=65/2] [L53] var_1_5 = __VERIFIER_nondet_float() [L54] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=65/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=65/2] [L54] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=65/2] [L55] var_1_6 = __VERIFIER_nondet_float() [L56] CALL assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0] [L56] RET assume_abort_if_not((var_1_6 >= -922337.2036854765600e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0] [L69] RET updateVariables() [L70] CALL step() [L31] signed long int stepLocal_1 = var_1_2; [L32] signed long int stepLocal_0 = var_1_2; VAL [isInitial=1, stepLocal_0=-100001, stepLocal_1=-100001, var_1_1=1/4, var_1_2=-100001, var_1_3=-100002, var_1_4=0] [L33] COND FALSE !(-100000 <= stepLocal_1) [L40] var_1_1 = var_1_6 VAL [isInitial=1, stepLocal_0=-100001, var_1_1=69, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=69] [L70] RET step() [L71] CALL, EXPR property() [L61-L62] return (-100000 <= var_1_2) ? ((var_1_2 <= (var_1_3 + var_1_4)) ? (var_1_1 == ((float) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))) : (var_1_1 == ((float) ((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : (var_1_1 == ((float) var_1_6)) ; VAL [\result=0, isInitial=1, var_1_1=69, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=69] [L71] RET, EXPR property() [L71] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=69, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=69] [L19] reach_error() VAL [isInitial=1, var_1_1=69, var_1_2=-100001, var_1_3=-100002, var_1_4=0, var_1_6=69] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 52 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 39 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, 39 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 210/224 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 [2025-03-08 15:16:12,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:16:14,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:16:14,524 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 15:16:14,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:16:14,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:16:14,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:16:14,549 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:16:14,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:16:14,549 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:16:14,549 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:16:14,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:16:14,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:16:14,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:16:14,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:16:14,549 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:16:14,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:16:14,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:16:14,550 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:16:14,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:16:14,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:14,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:16:14,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:16:14,551 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:16:14,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:16:14,551 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 15:16:14,551 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 15:16:14,552 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:16:14,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:16:14,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:16:14,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:16:14,552 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/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 -> ee450cdb7362593087eaa4f51cf0609baf72f213a54e3b9dfb94348c9a8e8899 [2025-03-08 15:16:14,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:16:14,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:16:14,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:16:14,780 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:16:14,780 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:16:14,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i [2025-03-08 15:16:15,939 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bc37b1d9/c0cf1ef0f8344b409fb3659a74dcfae6/FLAGcdd8f9a26 [2025-03-08 15:16:16,112 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:16:16,113 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i [2025-03-08 15:16:16,119 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bc37b1d9/c0cf1ef0f8344b409fb3659a74dcfae6/FLAGcdd8f9a26 [2025-03-08 15:16:16,135 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bc37b1d9/c0cf1ef0f8344b409fb3659a74dcfae6 [2025-03-08 15:16:16,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:16:16,140 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:16:16,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:16,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:16:16,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:16:16,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97c9244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16, skipping insertion in model container [2025-03-08 15:16:16,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:16:16,274 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2025-03-08 15:16:16,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:16,316 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:16:16,325 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-49.i[915,928] [2025-03-08 15:16:16,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:16,352 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:16:16,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16 WrapperNode [2025-03-08 15:16:16,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:16,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:16,355 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:16:16,355 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:16:16,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,378 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 67 [2025-03-08 15:16:16,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:16,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:16:16,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:16:16,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:16:16,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,388 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,396 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]. [2025-03-08 15:16:16,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,404 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,408 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:16:16,415 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:16:16,415 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:16:16,415 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:16:16,415 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (1/1) ... [2025-03-08 15:16:16,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:16,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:16:16,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 15:16:16,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 15:16:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:16:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 15:16:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:16:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:16:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:16:16,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:16:16,502 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:16:16,503 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:16:16,620 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-03-08 15:16:16,620 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:16:16,627 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:16:16,628 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:16:16,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:16 BoogieIcfgContainer [2025-03-08 15:16:16,628 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:16:16,630 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:16:16,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:16:16,633 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:16:16,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:16:16" (1/3) ... [2025-03-08 15:16:16,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5ea8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:16, skipping insertion in model container [2025-03-08 15:16:16,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:16" (2/3) ... [2025-03-08 15:16:16,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5ea8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:16, skipping insertion in model container [2025-03-08 15:16:16,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:16" (3/3) ... [2025-03-08 15:16:16,635 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-49.i [2025-03-08 15:16:16,645 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:16:16,647 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-49.i that has 2 procedures, 33 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:16:16,690 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:16:16,699 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;@113e1f96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:16:16,699 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:16:16,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 15:16:16,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 15:16:16,707 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:16,707 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:16:16,708 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:16,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:16,711 INFO L85 PathProgramCache]: Analyzing trace with hash 293131902, now seen corresponding path program 1 times [2025-03-08 15:16:16,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:16:16,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598476664] [2025-03-08 15:16:16,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:16,720 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 [2025-03-08 15:16:16,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:16:16,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:16:16,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-08 15:16:16,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 15:16:16,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 15:16:16,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:16,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:16,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:16:16,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:16:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-03-08 15:16:16,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:16:16,877 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:16:16,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598476664] [2025-03-08 15:16:16,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598476664] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:16:16,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:16:16,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 15:16:16,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423846655] [2025-03-08 15:16:16,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:16:16,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:16:16,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:16:16,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:16:16,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:16,896 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 15:16:16,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:16:16,910 INFO L93 Difference]: Finished difference Result 60 states and 91 transitions. [2025-03-08 15:16:16,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:16:16,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2025-03-08 15:16:16,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:16:16,916 INFO L225 Difference]: With dead ends: 60 [2025-03-08 15:16:16,916 INFO L226 Difference]: Without dead ends: 30 [2025-03-08 15:16:16,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:16,921 INFO L435 NwaCegarLoop]: 39 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, 39 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 [2025-03-08 15:16:16,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:16:16,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-03-08 15:16:16,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-03-08 15:16:16,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 15:16:16,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2025-03-08 15:16:16,949 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 55 [2025-03-08 15:16:16,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:16:16,950 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2025-03-08 15:16:16,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 15:16:16,950 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2025-03-08 15:16:16,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 15:16:16,951 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:16,952 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:16:16,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2025-03-08 15:16:17,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:16:17,155 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:17,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:17,156 INFO L85 PathProgramCache]: Analyzing trace with hash -923853728, now seen corresponding path program 1 times [2025-03-08 15:16:17,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:16:17,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517881006] [2025-03-08 15:16:17,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:17,156 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 [2025-03-08 15:16:17,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:16:17,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:16:17,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-08 15:16:17,195 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 15:16:17,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 15:16:17,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:17,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:17,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-08 15:16:17,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:16:19,415 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-03-08 15:16:19,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:16:19,416 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:16:19,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517881006] [2025-03-08 15:16:19,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517881006] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:16:19,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:16:19,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 15:16:19,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977935597] [2025-03-08 15:16:19,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:16:19,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 15:16:19,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:16:19,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 15:16:19,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-08 15:16:19,417 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2025-03-08 15:16:19,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:16:19,782 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2025-03-08 15:16:19,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 15:16:19,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 55 [2025-03-08 15:16:19,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:16:19,784 INFO L225 Difference]: With dead ends: 44 [2025-03-08 15:16:19,784 INFO L226 Difference]: Without dead ends: 42 [2025-03-08 15:16:19,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2025-03-08 15:16:19,784 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 38 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 15:16:19,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 120 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 15:16:19,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2025-03-08 15:16:19,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2025-03-08 15:16:19,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 15:16:19,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2025-03-08 15:16:19,790 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 55 [2025-03-08 15:16:19,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:16:19,790 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2025-03-08 15:16:19,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2025-03-08 15:16:19,790 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2025-03-08 15:16:19,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-03-08 15:16:19,791 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:19,791 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:16:19,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-03-08 15:16:19,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:16:19,992 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:19,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:19,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1454919717, now seen corresponding path program 1 times [2025-03-08 15:16:19,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:16:19,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564587637] [2025-03-08 15:16:19,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:19,995 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 [2025-03-08 15:16:19,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:16:19,997 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:16:20,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-03-08 15:16:20,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-08 15:16:20,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-08 15:16:20,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:20,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:20,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-08 15:16:20,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:16:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-03-08 15:16:21,218 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 15:16:25,881 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-03-08 15:16:25,882 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:16:25,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564587637] [2025-03-08 15:16:25,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564587637] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 15:16:25,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 15:16:25,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2025-03-08 15:16:25,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858990799] [2025-03-08 15:16:25,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 15:16:25,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-08 15:16:25,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:16:25,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-08 15:16:25,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2025-03-08 15:16:25,883 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-08 15:16:27,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:16:27,045 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2025-03-08 15:16:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-08 15:16:27,047 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 56 [2025-03-08 15:16:27,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:16:27,047 INFO L225 Difference]: With dead ends: 49 [2025-03-08 15:16:27,047 INFO L226 Difference]: Without dead ends: 47 [2025-03-08 15:16:27,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2025-03-08 15:16:27,048 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 31 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 15:16:27,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 172 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 15:16:27,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-03-08 15:16:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2025-03-08 15:16:27,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.103448275862069) internal successors, (32), 29 states have internal predecessors, (32), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 15:16:27,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2025-03-08 15:16:27,055 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 56 [2025-03-08 15:16:27,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:16:27,055 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2025-03-08 15:16:27,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-08 15:16:27,055 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2025-03-08 15:16:27,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-03-08 15:16:27,058 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:27,058 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:16:27,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-03-08 15:16:27,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:16:27,259 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:27,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:27,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1455843238, now seen corresponding path program 1 times [2025-03-08 15:16:27,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:16:27,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421411223] [2025-03-08 15:16:27,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:27,260 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 [2025-03-08 15:16:27,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:16:27,262 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:16:27,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-03-08 15:16:27,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-08 15:16:27,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-08 15:16:27,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:27,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:27,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-08 15:16:27,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:16:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-03-08 15:16:28,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:16:28,428 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:16:28,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421411223] [2025-03-08 15:16:28,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [421411223] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:16:28,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:16:28,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-08 15:16:28,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865852836] [2025-03-08 15:16:28,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:16:28,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 15:16:28,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:16:28,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 15:16:28,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2025-03-08 15:16:28,429 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 15:16:29,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:16:29,011 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2025-03-08 15:16:29,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-08 15:16:29,012 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2025-03-08 15:16:29,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:16:29,012 INFO L225 Difference]: With dead ends: 44 [2025-03-08 15:16:29,012 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 15:16:29,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2025-03-08 15:16:29,013 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 46 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 15:16:29,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 130 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 15:16:29,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 15:16:29,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 15:16:29,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 15:16:29,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 15:16:29,014 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2025-03-08 15:16:29,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:16:29,014 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 15:16:29,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 15:16:29,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 15:16:29,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 15:16:29,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 15:16:29,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2025-03-08 15:16:29,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:16:29,220 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-08 15:16:29,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 15:16:30,168 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 15:16:30,175 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:16:30,175 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:16:30,175 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:16:30,176 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:16:30,176 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:16:30,176 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:16:30,176 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:16:30,176 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:16:30,176 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:16:30,176 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-08 15:16:30,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:16:30 BoogieIcfgContainer [2025-03-08 15:16:30,176 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 15:16:30,177 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 15:16:30,177 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 15:16:30,177 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 15:16:30,178 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:16" (3/4) ... [2025-03-08 15:16:30,179 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 15:16:30,183 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-08 15:16:30,185 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-03-08 15:16:30,185 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-08 15:16:30,185 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 15:16:30,185 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 15:16:30,237 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 15:16:30,238 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 15:16:30,238 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 15:16:30,240 INFO L158 Benchmark]: Toolchain (without parser) took 14098.95ms. Allocated memory was 83.9MB in the beginning and 260.0MB in the end (delta: 176.2MB). Free memory was 59.6MB in the beginning and 150.4MB in the end (delta: -90.8MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2025-03-08 15:16:30,240 INFO L158 Benchmark]: CDTParser took 1.55ms. Allocated memory is still 83.9MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:30,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.31ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 47.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:30,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.67ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 45.9MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:30,241 INFO L158 Benchmark]: Boogie Preprocessor took 30.23ms. Allocated memory is still 83.9MB. Free memory was 45.9MB in the beginning and 44.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:30,241 INFO L158 Benchmark]: IcfgBuilder took 213.32ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 31.8MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:30,241 INFO L158 Benchmark]: TraceAbstraction took 13546.75ms. Allocated memory was 83.9MB in the beginning and 260.0MB in the end (delta: 176.2MB). Free memory was 31.2MB in the beginning and 158.7MB in the end (delta: -127.5MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2025-03-08 15:16:30,241 INFO L158 Benchmark]: Witness Printer took 60.94ms. Allocated memory is still 260.0MB. Free memory was 158.7MB in the beginning and 150.4MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:30,242 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.55ms. Allocated memory is still 83.9MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.31ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 47.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.67ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 45.9MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.23ms. Allocated memory is still 83.9MB. Free memory was 45.9MB in the beginning and 44.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 213.32ms. Allocated memory is still 83.9MB. Free memory was 44.4MB in the beginning and 31.8MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13546.75ms. Allocated memory was 83.9MB in the beginning and 260.0MB in the end (delta: 176.2MB). Free memory was 31.2MB in the beginning and 158.7MB in the end (delta: -127.5MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. * Witness Printer took 60.94ms. Allocated memory is still 260.0MB. Free memory was 158.7MB in the beginning and 150.4MB in the end (delta: 8.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 52 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.5s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 461 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 346 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 573 IncrementalHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 115 mSDtfsCounter, 573 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=3, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 273 ConstructedInterpolants, 3 QuantifiedInterpolants, 3115 SizeOfPredicates, 27 NumberOfNonLiveVariables, 378 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 554/560 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 15:16:30,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 Writing output log to file Ultimate.log Result: TRUE