./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.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 8031214ed9c619943b4a735ea98fb6c6f1f9f3536470f440c97b936292613cf6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:16:16,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:16:16,446 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 15:16:16,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:16:16,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:16:16,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:16:16,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:16:16,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:16:16,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:16:16,466 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:16:16,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:16:16,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:16:16,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:16:16,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:16:16,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:16:16,468 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:16:16,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:16,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:16:16,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:16:16,469 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 -> 8031214ed9c619943b4a735ea98fb6c6f1f9f3536470f440c97b936292613cf6 [2025-03-08 15:16:16,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:16:16,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:16:16,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:16:16,684 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:16:16,684 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:16:16,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.i [2025-03-08 15:16:17,821 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2924d8e72/f6ca93235f5748dcbb601dc35b241de9/FLAG891e98cf2 [2025-03-08 15:16:18,045 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:16:18,046 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.i [2025-03-08 15:16:18,051 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2924d8e72/f6ca93235f5748dcbb601dc35b241de9/FLAG891e98cf2 [2025-03-08 15:16:18,389 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2924d8e72/f6ca93235f5748dcbb601dc35b241de9 [2025-03-08 15:16:18,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:16:18,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:16:18,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:18,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:16:18,395 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:16:18,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608424ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18, skipping insertion in model container [2025-03-08 15:16:18,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,405 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:16:18,502 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.i[915,928] [2025-03-08 15:16:18,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:18,537 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:16:18,547 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.i[915,928] [2025-03-08 15:16:18,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:18,573 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:16:18,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18 WrapperNode [2025-03-08 15:16:18,574 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:18,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:18,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:16:18,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:16:18,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,602 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2025-03-08 15:16:18,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:18,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:16:18,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:16:18,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:16:18,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,628 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 15:16:18,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,632 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:16:18,638 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:16:18,638 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:16:18,638 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:16:18,639 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (1/1) ... [2025-03-08 15:16:18,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:18,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:16:18,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 15:16:18,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 15:16:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:16:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:16:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:16:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 15:16:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:16:18,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:16:18,733 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:16:18,734 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:16:18,844 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-08 15:16:18,845 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:16:18,850 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:16:18,851 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:16:18,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:18 BoogieIcfgContainer [2025-03-08 15:16:18,852 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:16:18,853 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:16:18,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:16:18,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:16:18,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:16:18" (1/3) ... [2025-03-08 15:16:18,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209d16f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:18, skipping insertion in model container [2025-03-08 15:16:18,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:18" (2/3) ... [2025-03-08 15:16:18,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209d16f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:18, skipping insertion in model container [2025-03-08 15:16:18,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:18" (3/3) ... [2025-03-08 15:16:18,860 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-53.i [2025-03-08 15:16:18,869 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:16:18,871 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-53.i that has 2 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:16:18,907 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:16:18,914 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;@78475686, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:16:18,915 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:16:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 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) [2025-03-08 15:16:18,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-08 15:16:18,924 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:18,924 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, 1, 1] [2025-03-08 15:16:18,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:18,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:18,932 INFO L85 PathProgramCache]: Analyzing trace with hash 476408593, now seen corresponding path program 1 times [2025-03-08 15:16:18,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:16:18,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933778560] [2025-03-08 15:16:18,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:18,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:16:19,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 15:16:19,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 15:16:19,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:19,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:19,107 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-03-08 15:16:19,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:16:19,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933778560] [2025-03-08 15:16:19,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933778560] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:16:19,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529721400] [2025-03-08 15:16:19,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:19,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:16:19,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:16:19,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 15:16:19,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 15:16:19,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 15:16:19,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 15:16:19,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:19,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:19,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:16:19,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:16:19,236 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-03-08 15:16:19,237 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:16:19,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529721400] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:16:19,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 15:16:19,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 15:16:19,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47549488] [2025-03-08 15:16:19,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:16:19,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:16:19,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:16:19,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:16:19,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:19,260 INFO L87 Difference]: Start difference. First operand has 38 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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) [2025-03-08 15:16:19,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:16:19,277 INFO L93 Difference]: Finished difference Result 70 states and 110 transitions. [2025-03-08 15:16:19,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:16:19,278 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (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 72 [2025-03-08 15:16:19,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:16:19,282 INFO L225 Difference]: With dead ends: 70 [2025-03-08 15:16:19,283 INFO L226 Difference]: Without dead ends: 35 [2025-03-08 15:16:19,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:19,287 INFO L435 NwaCegarLoop]: 47 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, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:16:19,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:16:19,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-08 15:16:19,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-03-08 15:16:19,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2025-03-08 15:16:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions. [2025-03-08 15:16:19,315 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 47 transitions. Word has length 72 [2025-03-08 15:16:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:16:19,315 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 47 transitions. [2025-03-08 15:16:19,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (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) [2025-03-08 15:16:19,316 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2025-03-08 15:16:19,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-08 15:16:19,317 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:19,318 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, 1, 1] [2025-03-08 15:16:19,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 15:16:19,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 15:16:19,522 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:19,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:19,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1098434860, now seen corresponding path program 1 times [2025-03-08 15:16:19,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:16:19,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095494205] [2025-03-08 15:16:19,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:19,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:16:19,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 15:16:19,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 15:16:19,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:19,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:16:19,583 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 15:16:19,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 15:16:19,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 15:16:19,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:19,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:16:19,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 15:16:19,633 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 15:16:19,634 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 15:16:19,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 15:16:19,637 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-08 15:16:19,675 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 15:16:19,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:16:19 BoogieIcfgContainer [2025-03-08 15:16:19,680 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 15:16:19,680 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 15:16:19,681 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 15:16:19,681 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 15:16:19,682 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:18" (3/4) ... [2025-03-08 15:16:19,683 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 15:16:19,684 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 15:16:19,685 INFO L158 Benchmark]: Toolchain (without parser) took 1293.22ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 37.4MB in the end (delta: 68.7MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-08 15:16:19,685 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:19,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.74ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 93.8MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:19,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.23ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 92.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:19,686 INFO L158 Benchmark]: Boogie Preprocessor took 33.47ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 91.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:19,686 INFO L158 Benchmark]: IcfgBuilder took 213.80ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 78.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:19,686 INFO L158 Benchmark]: TraceAbstraction took 826.62ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 37.4MB in the end (delta: 40.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-08 15:16:19,686 INFO L158 Benchmark]: Witness Printer took 3.70ms. Allocated memory is still 142.6MB. Free memory is still 37.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:19,687 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.74ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 93.8MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.23ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 92.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.47ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 91.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 213.80ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 78.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 826.62ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 37.4MB in the end (delta: 40.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 3.70ms. Allocated memory is still 142.6MB. Free memory is still 37.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 46, overapproximation of someBinaryFLOATComparisonOperation at line 51, overapproximation of someBinaryFLOATComparisonOperation at line 48, overapproximation of someBinaryFLOATComparisonOperation at line 45, overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of someBinaryFLOATComparisonOperation at line 53, overapproximation of someBinaryFLOATComparisonOperation at line 64, overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of someBinaryFLOATComparisonOperation at line 43. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 8; [L23] float var_1_2 = 1.25; [L24] float var_1_3 = 1.375; [L25] float var_1_4 = 1.6; [L26] float var_1_5 = 256.25; [L27] float var_1_6 = 1.9; [L28] signed long int var_1_7 = -32; [L29] signed long int var_1_8 = -10000000; VAL [isInitial=0, var_1_1=8, var_1_2=5/4, var_1_3=11/8, var_1_4=8/5, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L68] isInitial = 1 [L69] FCALL initially() [L70] COND TRUE 1 [L71] FCALL updateLastVariables() [L72] CALL updateVariables() [L42] var_1_2 = __VERIFIER_nondet_float() [L43] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_3=11/8, var_1_4=8/5, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_3=11/8, var_1_4=8/5, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L43] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=8, var_1_3=11/8, var_1_4=8/5, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L44] var_1_3 = __VERIFIER_nondet_float() [L45] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_4=8/5, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_4=8/5, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L45] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=8, var_1_4=8/5, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L46] CALL assume_abort_if_not(var_1_3 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_4=8/5, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_4=8/5, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L46] RET assume_abort_if_not(var_1_3 != 0.0F) VAL [isInitial=1, var_1_1=8, var_1_4=8/5, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L47] var_1_4 = __VERIFIER_nondet_float() [L48] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L48] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=8, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L49] CALL assume_abort_if_not(var_1_4 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L49] RET assume_abort_if_not(var_1_4 != 0.0F) VAL [isInitial=1, var_1_1=8, var_1_5=1025/4, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L50] var_1_5 = __VERIFIER_nondet_float() [L51] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L51] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=8, var_1_6=19/10, var_1_7=-32, var_1_8=-10000000] [L52] var_1_6 = __VERIFIER_nondet_float() [L53] CALL assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_7=-32, var_1_8=-10000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_7=-32, var_1_8=-10000000] [L53] RET assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=8, var_1_7=-32, var_1_8=-10000000] [L54] var_1_7 = __VERIFIER_nondet_long() [L55] CALL assume_abort_if_not(var_1_7 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=-10000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=-10000000] [L55] RET assume_abort_if_not(var_1_7 >= -1073741823) VAL [isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=-10000000] [L56] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=-10000000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=-10000000] [L56] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=-10000000] [L57] var_1_8 = __VERIFIER_nondet_long() [L58] CALL assume_abort_if_not(var_1_8 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=0] [L58] RET assume_abort_if_not(var_1_8 >= -1073741823) VAL [isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=0] [L59] CALL assume_abort_if_not(var_1_8 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=0] [L59] RET assume_abort_if_not(var_1_8 <= 1073741823) VAL [isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=0] [L72] RET updateVariables() [L73] CALL step() [L33] COND FALSE !((var_1_2 / ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) > (var_1_5 * var_1_6)) VAL [isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=0] [L73] RET step() [L74] CALL, EXPR property() [L64-L65] return ((var_1_2 / ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) > (var_1_5 * var_1_6)) ? ((var_1_3 == var_1_6) ? (var_1_1 == ((signed long int) (var_1_7 + var_1_8))) : (var_1_1 == ((signed long int) var_1_8))) : 1 ; VAL [\result=0, isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=0] [L74] RET, EXPR property() [L74] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=0] [L19] reach_error() VAL [isInitial=1, var_1_1=8, var_1_7=1073741823, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 63 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 47 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, 47 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 216 NumberOfCodeBlocks, 216 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 166 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 [2025-03-08 15:16:19,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.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 8031214ed9c619943b4a735ea98fb6c6f1f9f3536470f440c97b936292613cf6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:16:21,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:16:21,562 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 15:16:21,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:16:21,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:16:21,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:16:21,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:16:21,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:16:21,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:16:21,587 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:16:21,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:16:21,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:16:21,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:16:21,587 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:16:21,587 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:16:21,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 15:16:21,588 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:16:21,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:16:21,589 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:16:21,589 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:16:21,589 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:16:21,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:16:21,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:16:21,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:16:21,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:21,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:16:21,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:16:21,590 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:16:21,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:16:21,590 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 15:16:21,590 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 15:16:21,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:16:21,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:16:21,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:16:21,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:16:21,590 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 -> 8031214ed9c619943b4a735ea98fb6c6f1f9f3536470f440c97b936292613cf6 [2025-03-08 15:16:21,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:16:21,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:16:21,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:16:21,831 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:16:21,831 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:16:21,832 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.i [2025-03-08 15:16:22,993 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd3865468/70055e01ec4b4104b08fe1e2b19344d4/FLAG99930749a [2025-03-08 15:16:23,204 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:16:23,205 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.i [2025-03-08 15:16:23,211 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd3865468/70055e01ec4b4104b08fe1e2b19344d4/FLAG99930749a [2025-03-08 15:16:23,578 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd3865468/70055e01ec4b4104b08fe1e2b19344d4 [2025-03-08 15:16:23,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:16:23,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:16:23,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:23,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:16:23,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:16:23,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ba5ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23, skipping insertion in model container [2025-03-08 15:16:23,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,601 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:16:23,687 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.i[915,928] [2025-03-08 15:16:23,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:23,721 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:16:23,730 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-53.i[915,928] [2025-03-08 15:16:23,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:23,753 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:16:23,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23 WrapperNode [2025-03-08 15:16:23,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:23,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:23,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:16:23,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:16:23,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,776 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2025-03-08 15:16:23,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:23,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:16:23,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:16:23,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:16:23,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,785 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,792 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 15:16:23,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,797 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,800 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:16:23,801 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:16:23,801 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:16:23,801 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:16:23,802 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (1/1) ... [2025-03-08 15:16:23,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:23,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:16:23,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 15:16:23,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 15:16:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:16:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 15:16:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:16:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:16:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:16:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:16:23,893 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:16:23,894 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:16:29,947 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-08 15:16:29,947 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:16:29,953 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:16:29,953 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:16:29,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:29 BoogieIcfgContainer [2025-03-08 15:16:29,954 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:16:29,956 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:16:29,956 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:16:29,959 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:16:29,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:16:23" (1/3) ... [2025-03-08 15:16:29,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1543bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:29, skipping insertion in model container [2025-03-08 15:16:29,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:23" (2/3) ... [2025-03-08 15:16:29,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1543bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:29, skipping insertion in model container [2025-03-08 15:16:29,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:29" (3/3) ... [2025-03-08 15:16:29,961 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-53.i [2025-03-08 15:16:29,970 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:16:29,971 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-53.i that has 2 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:16:30,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:16:30,008 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;@454bc031, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:16:30,008 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:16:30,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 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) [2025-03-08 15:16:30,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-08 15:16:30,015 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:30,016 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, 1, 1] [2025-03-08 15:16:30,016 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:30,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:30,019 INFO L85 PathProgramCache]: Analyzing trace with hash 476408593, now seen corresponding path program 1 times [2025-03-08 15:16:30,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:16:30,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384169604] [2025-03-08 15:16:30,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:30,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:16:30,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:16:30,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:16:30,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-08 15:16:30,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 15:16:30,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 15:16:30,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:30,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:30,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:16:30,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:16:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-03-08 15:16:30,339 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:16:30,339 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:16:30,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384169604] [2025-03-08 15:16:30,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384169604] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:16:30,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:16:30,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 15:16:30,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950150892] [2025-03-08 15:16:30,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:16:30,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:16:30,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:16:30,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:16:30,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:30,358 INFO L87 Difference]: Start difference. First operand has 38 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 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 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-08 15:16:30,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:16:30,370 INFO L93 Difference]: Finished difference Result 70 states and 110 transitions. [2025-03-08 15:16:30,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:16:30,372 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 72 [2025-03-08 15:16:30,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:16:30,375 INFO L225 Difference]: With dead ends: 70 [2025-03-08 15:16:30,375 INFO L226 Difference]: Without dead ends: 35 [2025-03-08 15:16:30,377 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 [2025-03-08 15:16:30,379 INFO L435 NwaCegarLoop]: 47 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, 47 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:16:30,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:16:30,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-08 15:16:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-03-08 15:16:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2025-03-08 15:16:30,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions. [2025-03-08 15:16:30,405 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 47 transitions. Word has length 72 [2025-03-08 15:16:30,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:16:30,405 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 47 transitions. [2025-03-08 15:16:30,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-08 15:16:30,406 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2025-03-08 15:16:30,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-08 15:16:30,407 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:30,407 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, 1, 1] [2025-03-08 15:16:30,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-08 15:16:30,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:16:30,608 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:30,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:30,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1098434860, now seen corresponding path program 1 times [2025-03-08 15:16:30,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:16:30,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777996668] [2025-03-08 15:16:30,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:30,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:16:30,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:16:30,611 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:16:30,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-08 15:16:30,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 15:16:30,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 15:16:30,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:30,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:30,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 15:16:30,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:16:41,795 WARN L286 SmtUtils]: Spent 7.70s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-08 15:16:49,932 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-08 15:16:57,702 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_~var_1_5~0 c_~var_1_6~0)) (.cse1 (fp.lt c_~var_1_3~0 c_~var_1_4~0))) (and (or (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_2~0 c_~var_1_4~0) .cse0)) .cse1) (or (not (fp.gt (fp.div c_currentRoundingMode c_~var_1_2~0 c_~var_1_3~0) .cse0)) (not .cse1)))) is different from false [2025-03-08 15:17:16,443 WARN L286 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-08 15:17:24,610 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-08 15:17:32,753 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-08 15:17:40,919 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-08 15:17:53,005 WARN L286 SmtUtils]: Spent 7.95s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)