./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_floatingpointinfluence_no-floats_file-26.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 26889e4c825bc9df5f6bfdada4995dbeaf45a1d31e009b603ffadcd3ffbc80b6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 02:52:48,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 02:52:48,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 02:52:48,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 02:52:48,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 02:52:48,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 02:52:48,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 02:52:48,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 02:52:48,639 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 02:52:48,640 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 02:52:48,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 02:52:48,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 02:52:48,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 02:52:48,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 02:52:48,641 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 02:52:48,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 02:52:48,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 02:52:48,641 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 02:52:48,642 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 02:52:48,642 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 02:52:48,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 02:52:48,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 02:52:48,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 02:52:48,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 02:52:48,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 02:52:48,643 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 02:52:48,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 02:52:48,643 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 02:52:48,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 02:52:48,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 02:52:48,644 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 02:52:48,644 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 02:52:48,644 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 02:52:48,644 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 -> 26889e4c825bc9df5f6bfdada4995dbeaf45a1d31e009b603ffadcd3ffbc80b6 [2025-03-17 02:52:48,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 02:52:48,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 02:52:48,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 02:52:48,844 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 02:52:48,845 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 02:52:48,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i [2025-03-17 02:52:49,958 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e955c235/9e9894effd374e5bac56596f0a2e7f69/FLAGd98289d29 [2025-03-17 02:52:50,192 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 02:52:50,193 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i [2025-03-17 02:52:50,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e955c235/9e9894effd374e5bac56596f0a2e7f69/FLAGd98289d29 [2025-03-17 02:52:50,219 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e955c235/9e9894effd374e5bac56596f0a2e7f69 [2025-03-17 02:52:50,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 02:52:50,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 02:52:50,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 02:52:50,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 02:52:50,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 02:52:50,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ce3ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50, skipping insertion in model container [2025-03-17 02:52:50,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 02:52:50,336 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i[916,929] [2025-03-17 02:52:50,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 02:52:50,396 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 02:52:50,404 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i[916,929] [2025-03-17 02:52:50,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 02:52:50,447 INFO L204 MainTranslator]: Completed translation [2025-03-17 02:52:50,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50 WrapperNode [2025-03-17 02:52:50,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 02:52:50,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 02:52:50,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 02:52:50,450 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 02:52:50,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,490 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2025-03-17 02:52:50,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 02:52:50,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 02:52:50,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 02:52:50,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 02:52:50,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,501 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,525 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]. [2025-03-17 02:52:50,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,535 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,547 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 02:52:50,548 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 02:52:50,549 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 02:52:50,549 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 02:52:50,550 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (1/1) ... [2025-03-17 02:52:50,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 02:52:50,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 02:52:50,573 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) [2025-03-17 02:52:50,575 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 [2025-03-17 02:52:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 02:52:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 02:52:50,591 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 02:52:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 02:52:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 02:52:50,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 02:52:50,648 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 02:52:50,649 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 02:52:50,841 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-17 02:52:50,842 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 02:52:50,850 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 02:52:50,850 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 02:52:50,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:52:50 BoogieIcfgContainer [2025-03-17 02:52:50,851 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 02:52:50,853 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 02:52:50,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 02:52:50,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 02:52:50,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:52:50" (1/3) ... [2025-03-17 02:52:50,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40751062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:52:50, skipping insertion in model container [2025-03-17 02:52:50,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:50" (2/3) ... [2025-03-17 02:52:50,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40751062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:52:50, skipping insertion in model container [2025-03-17 02:52:50,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:52:50" (3/3) ... [2025-03-17 02:52:50,860 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-26.i [2025-03-17 02:52:50,871 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 02:52:50,873 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-26.i that has 2 procedures, 34 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 02:52:50,911 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 02:52:50,918 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;@6627d45f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 02:52:50,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 02:52:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-17 02:52:50,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-17 02:52:50,927 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:52:50,927 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:52:50,928 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:52:50,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:52:50,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1423083323, now seen corresponding path program 1 times [2025-03-17 02:52:50,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 02:52:50,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114019690] [2025-03-17 02:52:50,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:52:50,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 02:52:50,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 02:52:51,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 02:52:51,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:52:51,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:52:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-03-17 02:52:51,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 02:52:51,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114019690] [2025-03-17 02:52:51,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114019690] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 02:52:51,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538822981] [2025-03-17 02:52:51,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:52:51,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 02:52:51,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 02:52:51,128 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) [2025-03-17 02:52:51,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 02:52:51,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 02:52:51,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 02:52:51,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:52:51,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:52:51,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 02:52:51,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 02:52:51,247 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-03-17 02:52:51,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 02:52:51,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538822981] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 02:52:51,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 02:52:51,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 02:52:51,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245479299] [2025-03-17 02:52:51,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 02:52:51,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 02:52:51,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 02:52:51,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 02:52:51,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 02:52:51,273 INFO L87 Difference]: Start difference. First operand has 34 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) 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, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-17 02:52:51,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 02:52:51,308 INFO L93 Difference]: Finished difference Result 65 states and 107 transitions. [2025-03-17 02:52:51,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 02:52:51,309 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, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 70 [2025-03-17 02:52:51,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 02:52:51,313 INFO L225 Difference]: With dead ends: 65 [2025-03-17 02:52:51,316 INFO L226 Difference]: Without dead ends: 32 [2025-03-17 02:52:51,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 02:52:51,320 INFO L435 NwaCegarLoop]: 44 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, 44 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 [2025-03-17 02:52:51,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 02:52:51,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-03-17 02:52:51,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2025-03-17 02:52:51,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-17 02:52:51,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2025-03-17 02:52:51,348 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 70 [2025-03-17 02:52:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 02:52:51,348 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2025-03-17 02:52:51,348 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, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-17 02:52:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2025-03-17 02:52:51,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-17 02:52:51,349 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:52:51,350 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:52:51,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 02:52:51,554 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 [2025-03-17 02:52:51,554 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:52:51,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:52:51,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1872881113, now seen corresponding path program 1 times [2025-03-17 02:52:51,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 02:52:51,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251038831] [2025-03-17 02:52:51,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:52:51,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 02:52:51,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 02:52:51,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 02:52:51,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:52:51,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 02:52:51,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683597207] [2025-03-17 02:52:51,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:52:51,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 02:52:51,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 02:52:51,697 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 02:52:51,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 02:52:51,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 02:52:51,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 02:52:51,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:52:51,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 02:52:51,808 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 02:52:51,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 02:52:51,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 02:52:51,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:52:51,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 02:52:51,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 02:52:51,876 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 02:52:51,876 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-17 02:52:51,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 02:52:52,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-17 02:52:52,084 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-17 02:52:52,121 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 02:52:52,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:52:52 BoogieIcfgContainer [2025-03-17 02:52:52,125 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 02:52:52,125 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 02:52:52,125 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 02:52:52,126 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 02:52:52,126 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:52:50" (3/4) ... [2025-03-17 02:52:52,129 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 02:52:52,129 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 02:52:52,130 INFO L158 Benchmark]: Toolchain (without parser) took 1907.58ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 74.1MB in the end (delta: 32.2MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2025-03-17 02:52:52,130 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 02:52:52,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.24ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 93.4MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 02:52:52,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.67ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 89.4MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 02:52:52,130 INFO L158 Benchmark]: Boogie Preprocessor took 56.16ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 82.3MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 02:52:52,131 INFO L158 Benchmark]: IcfgBuilder took 302.37ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 63.3MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 02:52:52,131 INFO L158 Benchmark]: TraceAbstraction took 1271.48ms. Allocated memory is still 142.6MB. Free memory was 63.3MB in the beginning and 74.9MB in the end (delta: -11.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 02:52:52,131 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 142.6MB. Free memory was 74.9MB in the beginning and 74.1MB in the end (delta: 781.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 02:52:52,132 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.24ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 93.4MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.67ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 89.4MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.16ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 82.3MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 302.37ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 63.3MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1271.48ms. Allocated memory is still 142.6MB. Free memory was 63.3MB in the beginning and 74.9MB in the end (delta: -11.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 142.6MB. Free memory was 74.9MB in the beginning and 74.1MB in the end (delta: 781.9kB). 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 to_int at line 73, overapproximation of to_int at line 36. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -1; [L23] signed short int var_1_4 = 1; [L24] signed long int var_1_12 = 1; [L25] signed long int var_1_13 = 199; [L26] signed long int var_1_14 = 2000000000; [L27] unsigned char var_1_15 = 64; [L28] unsigned char var_1_16 = 2; [L29] unsigned long int var_1_17 = 50; [L30] signed long int var_1_19 = -32; [L31] signed long int var_1_20 = 8; [L32] unsigned char last_1_var_1_15 = 64; [L77] isInitial = 1 [L78] FCALL initially() [L79] COND TRUE 1 [L80] CALL updateLastVariables() [L70] last_1_var_1_15 = var_1_15 [L80] RET updateLastVariables() [L81] CALL updateVariables() [L52] var_1_4 = __VERIFIER_nondet_short() [L53] CALL assume_abort_if_not(var_1_4 >= -32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=199, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=199, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L53] RET assume_abort_if_not(var_1_4 >= -32767) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=199, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L54] CALL assume_abort_if_not(var_1_4 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=199, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=199, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L54] RET assume_abort_if_not(var_1_4 <= 32766) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=199, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L55] var_1_13 = __VERIFIER_nondet_long() [L56] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L56] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L57] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L57] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=2000000000, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L58] var_1_14 = __VERIFIER_nondet_long() [L59] CALL assume_abort_if_not(var_1_14 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L59] RET assume_abort_if_not(var_1_14 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L60] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L60] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=2, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L61] var_1_16 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L62] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L63] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L63] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=-32, var_1_1=-1, var_1_20=8, var_1_4=-259] [L64] var_1_19 = __VERIFIER_nondet_long() [L65] CALL assume_abort_if_not(var_1_19 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L65] RET assume_abort_if_not(var_1_19 >= -2147483648) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L66] CALL assume_abort_if_not(var_1_19 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L66] RET assume_abort_if_not(var_1_19 <= 2147483647) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L67] CALL assume_abort_if_not(var_1_19 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L67] RET assume_abort_if_not(var_1_19 != 0) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=1, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L81] RET updateVariables() [L82] CALL step() [L36] var_1_12 = ((0.85f - var_1_13) + var_1_14) VAL [isInitial=1, last_1_var_1_15=64, var_1_13=0, var_1_14=-2147483648, var_1_15=64, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L37] COND TRUE (- last_1_var_1_15) >= (var_1_4 / ((((-4) < 0 ) ? -(-4) : (-4)))) [L38] var_1_15 = var_1_16 VAL [isInitial=1, last_1_var_1_15=64, var_1_13=0, var_1_14=-2147483648, var_1_15=1, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=8, var_1_4=-259] [L40] var_1_20 = var_1_13 VAL [isInitial=1, last_1_var_1_15=64, var_1_13=0, var_1_14=-2147483648, var_1_15=1, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=-1, var_1_20=0, var_1_4=-259] [L41] COND FALSE !(var_1_20 > var_1_20) [L44] var_1_1 = (((((var_1_15 - ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) < ((var_1_15 + ((((var_1_15) < (var_1_15)) ? (var_1_15) : (var_1_15)))))) ? ((var_1_15 - ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) : ((var_1_15 + ((((var_1_15) < (var_1_15)) ? (var_1_15) : (var_1_15))))))) VAL [isInitial=1, last_1_var_1_15=64, var_1_13=0, var_1_14=-2147483648, var_1_15=1, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=0, var_1_20=0, var_1_4=-259] [L46] signed long int stepLocal_0 = var_1_15 + (var_1_15 + var_1_1); VAL [isInitial=1, last_1_var_1_15=64, stepLocal_0=2, var_1_13=0, var_1_14=-2147483648, var_1_15=1, var_1_16=1, var_1_17=50, var_1_19=2, var_1_1=0, var_1_20=0, var_1_4=-259] [L47] COND TRUE stepLocal_0 != (var_1_15 * (var_1_1 / var_1_19)) [L48] var_1_17 = (((((10u) < ((var_1_1 + var_1_15))) ? (10u) : ((var_1_1 + var_1_15)))) + var_1_15) VAL [isInitial=1, last_1_var_1_15=64, var_1_13=0, var_1_14=-2147483648, var_1_15=1, var_1_16=1, var_1_17=2, var_1_19=2, var_1_1=0, var_1_20=0, var_1_4=-259] [L82] RET step() [L83] CALL, EXPR property() [L73-L74] return (((((var_1_20 > var_1_20) ? (var_1_1 == ((signed short int) ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) : (var_1_1 == ((signed short int) (((((var_1_15 - ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) < ((var_1_15 + ((((var_1_15) < (var_1_15)) ? (var_1_15) : (var_1_15)))))) ? ((var_1_15 - ((((var_1_15) > (var_1_15)) ? (var_1_15) : (var_1_15))))) : ((var_1_15 + ((((var_1_15) < (var_1_15)) ? (var_1_15) : (var_1_15)))))))))) && (var_1_12 == ((signed long int) ((0.85f - var_1_13) + var_1_14)))) && (((- last_1_var_1_15) >= (var_1_4 / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (var_1_15 == ((unsigned char) var_1_16)) : 1)) && (((var_1_15 + (var_1_15 + var_1_1)) != (var_1_15 * (var_1_1 / var_1_19))) ? (var_1_17 == ((unsigned long int) (((((10u) < ((var_1_1 + var_1_15))) ? (10u) : ((var_1_1 + var_1_15)))) + var_1_15))) : 1)) && (var_1_20 == ((signed long int) var_1_13)) ; [L83] RET, EXPR property() [L83] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_15=64, var_1_12=16, var_1_13=0, var_1_14=-2147483648, var_1_15=1, var_1_16=1, var_1_17=2, var_1_19=2, var_1_1=0, var_1_20=0, var_1_4=-259] [L19] reach_error() VAL [isInitial=1, last_1_var_1_15=64, var_1_12=16, var_1_13=0, var_1_14=-2147483648, var_1_15=1, var_1_16=1, var_1_17=2, var_1_19=2, var_1_1=0, var_1_20=0, var_1_4=-259] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 60 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 44 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, 44 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 280 NumberOfCodeBlocks, 280 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 180 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 420/440 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 [2025-03-17 02:52:52,149 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_floatingpointinfluence_no-floats_file-26.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 26889e4c825bc9df5f6bfdada4995dbeaf45a1d31e009b603ffadcd3ffbc80b6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 02:52:53,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 02:52:54,071 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-17 02:52:54,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 02:52:54,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 02:52:54,095 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 02:52:54,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 02:52:54,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 02:52:54,097 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 02:52:54,097 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 02:52:54,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 02:52:54,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 02:52:54,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 02:52:54,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 02:52:54,099 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 02:52:54,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 02:52:54,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 02:52:54,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 02:52:54,101 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 02:52:54,101 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 02:52:54,101 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 02:52:54,101 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 02:52:54,101 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 02:52:54,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 02:52:54,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 02:52:54,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 02:52:54,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 02:52:54,102 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 02:52:54,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 02:52:54,102 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 02:52:54,102 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 02:52:54,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 02:52:54,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 02:52:54,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 02:52:54,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 02:52:54,103 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 -> 26889e4c825bc9df5f6bfdada4995dbeaf45a1d31e009b603ffadcd3ffbc80b6 [2025-03-17 02:52:54,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 02:52:54,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 02:52:54,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 02:52:54,361 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 02:52:54,361 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 02:52:54,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i [2025-03-17 02:52:55,504 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66ac2bae4/a64316e60635475ba7754a6ca610d692/FLAG182e67371 [2025-03-17 02:52:55,699 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 02:52:55,700 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i [2025-03-17 02:52:55,707 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66ac2bae4/a64316e60635475ba7754a6ca610d692/FLAG182e67371 [2025-03-17 02:52:56,066 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66ac2bae4/a64316e60635475ba7754a6ca610d692 [2025-03-17 02:52:56,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 02:52:56,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 02:52:56,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 02:52:56,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 02:52:56,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 02:52:56,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a49d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56, skipping insertion in model container [2025-03-17 02:52:56,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 02:52:56,173 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i[916,929] [2025-03-17 02:52:56,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 02:52:56,215 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 02:52:56,223 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-26.i[916,929] [2025-03-17 02:52:56,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 02:52:56,248 INFO L204 MainTranslator]: Completed translation [2025-03-17 02:52:56,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56 WrapperNode [2025-03-17 02:52:56,249 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 02:52:56,250 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 02:52:56,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 02:52:56,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 02:52:56,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,277 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 79 [2025-03-17 02:52:56,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 02:52:56,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 02:52:56,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 02:52:56,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 02:52:56,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,288 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,307 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]. [2025-03-17 02:52:56,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,316 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 02:52:56,327 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 02:52:56,327 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 02:52:56,327 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 02:52:56,328 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (1/1) ... [2025-03-17 02:52:56,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 02:52:56,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 02:52:56,358 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) [2025-03-17 02:52:56,364 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 [2025-03-17 02:52:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 02:52:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 02:52:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 02:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 02:52:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 02:52:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 02:52:56,442 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 02:52:56,444 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 02:53:02,210 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-17 02:53:02,211 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 02:53:02,219 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 02:53:02,219 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 02:53:02,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:53:02 BoogieIcfgContainer [2025-03-17 02:53:02,220 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 02:53:02,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 02:53:02,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 02:53:02,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 02:53:02,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:52:56" (1/3) ... [2025-03-17 02:53:02,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff0324e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:53:02, skipping insertion in model container [2025-03-17 02:53:02,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:52:56" (2/3) ... [2025-03-17 02:53:02,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff0324e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:53:02, skipping insertion in model container [2025-03-17 02:53:02,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:53:02" (3/3) ... [2025-03-17 02:53:02,227 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-26.i [2025-03-17 02:53:02,237 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 02:53:02,238 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-26.i that has 2 procedures, 34 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 02:53:02,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 02:53:02,288 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;@475bc896, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 02:53:02,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 02:53:02,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-17 02:53:02,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-17 02:53:02,297 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:53:02,297 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:53:02,299 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:53:02,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:53:02,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1423083323, now seen corresponding path program 1 times [2025-03-17 02:53:02,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 02:53:02,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979122502] [2025-03-17 02:53:02,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:53:02,312 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 [2025-03-17 02:53:02,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-17 02:53:02,317 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) [2025-03-17 02:53:02,318 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 [2025-03-17 02:53:02,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 02:53:02,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 02:53:02,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:53:02,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:53:02,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 02:53:02,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 02:53:02,544 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-03-17 02:53:02,544 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 02:53:02,545 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 02:53:02,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979122502] [2025-03-17 02:53:02,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979122502] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 02:53:02,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 02:53:02,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 02:53:02,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873237833] [2025-03-17 02:53:02,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 02:53:02,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 02:53:02,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 02:53:02,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 02:53:02,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 02:53:02,565 INFO L87 Difference]: Start difference. First operand has 34 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-03-17 02:53:02,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 02:53:02,581 INFO L93 Difference]: Finished difference Result 65 states and 107 transitions. [2025-03-17 02:53:02,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 02:53:02,583 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), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 70 [2025-03-17 02:53:02,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 02:53:02,586 INFO L225 Difference]: With dead ends: 65 [2025-03-17 02:53:02,586 INFO L226 Difference]: Without dead ends: 32 [2025-03-17 02:53:02,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 02:53:02,590 INFO L435 NwaCegarLoop]: 44 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, 44 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 [2025-03-17 02:53:02,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 02:53:02,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-03-17 02:53:02,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2025-03-17 02:53:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-17 02:53:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2025-03-17 02:53:02,615 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 70 [2025-03-17 02:53:02,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 02:53:02,615 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2025-03-17 02:53:02,615 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), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-03-17 02:53:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2025-03-17 02:53:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-17 02:53:02,619 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 02:53:02,619 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 02:53:02,628 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 [2025-03-17 02:53:02,820 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 [2025-03-17 02:53:02,821 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 02:53:02,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 02:53:02,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1872881113, now seen corresponding path program 1 times [2025-03-17 02:53:02,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 02:53:02,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134436867] [2025-03-17 02:53:02,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:53:02,822 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 [2025-03-17 02:53:02,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-17 02:53:02,824 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) [2025-03-17 02:53:02,825 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 [2025-03-17 02:53:02,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 02:53:02,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 02:53:02,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:53:02,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 02:53:02,998 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 02:53:03,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 02:53:03,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 02:53:03,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:53:03,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 02:53:03,122 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2025-03-17 02:53:03,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1452473748] [2025-03-17 02:53:03,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 02:53:03,123 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-17 02:53:03,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-17 02:53:03,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-17 02:53:03,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2025-03-17 02:53:03,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 02:53:03,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 02:53:03,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 02:53:03,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 02:53:03,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-17 02:53:03,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 02:53:26,337 WARN L286 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-17 02:53:41,808 WARN L286 SmtUtils]: Spent 7.75s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-17 02:54:24,891 WARN L286 SmtUtils]: Spent 17.95s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)