./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.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-12.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 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:14:28,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:14:28,974 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 15:14:28,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:14:28,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:14:29,006 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:14:29,008 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:14:29,008 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:14:29,008 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:14:29,008 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:14:29,009 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:14:29,009 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:14:29,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:14:29,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:14:29,010 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:14:29,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:14:29,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:14:29,010 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:14:29,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 15:14:29,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:14:29,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:14:29,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:14:29,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:14:29,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:14:29,011 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:14:29,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:14:29,011 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:14:29,011 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:14:29,011 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:14:29,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:14:29,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:14:29,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:14:29,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:14:29,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:14:29,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:14:29,012 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:14:29,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:14:29,012 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 15:14:29,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 15:14:29,012 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:14:29,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:14:29,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:14:29,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:14:29,013 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 -> 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b [2025-03-08 15:14:29,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:14:29,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:14:29,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:14:29,213 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:14:29,213 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:14:29,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2025-03-08 15:14:30,371 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5987bd5df/f5fb33687b154ad59f9f536bc3358fe8/FLAG0ca809176 [2025-03-08 15:14:30,594 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:14:30,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2025-03-08 15:14:30,602 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5987bd5df/f5fb33687b154ad59f9f536bc3358fe8/FLAG0ca809176 [2025-03-08 15:14:30,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5987bd5df/f5fb33687b154ad59f9f536bc3358fe8 [2025-03-08 15:14:30,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:14:30,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:14:30,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:14:30,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:14:30,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:14:30,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:14:30" (1/1) ... [2025-03-08 15:14:30,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67682a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:30, skipping insertion in model container [2025-03-08 15:14:30,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:14:30" (1/1) ... [2025-03-08 15:14:30,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:14:31,040 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-12.i[915,928] [2025-03-08 15:14:31,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:14:31,063 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:14:31,069 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-12.i[915,928] [2025-03-08 15:14:31,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:14:31,087 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:14:31,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31 WrapperNode [2025-03-08 15:14:31,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:14:31,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:14:31,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:14:31,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:14:31,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,107 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2025-03-08 15:14:31,107 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:14:31,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:14:31,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:14:31,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:14:31,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,114 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,121 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 15:14:31,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,124 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:14:31,127 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:14:31,127 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:14:31,127 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:14:31,128 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (1/1) ... [2025-03-08 15:14:31,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:14:31,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:14:31,148 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 15:14:31,151 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 15:14:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:14:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:14:31,163 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:14:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 15:14:31,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:14:31,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:14:31,207 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:14:31,208 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:14:31,311 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-03-08 15:14:31,311 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:14:31,317 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:14:31,317 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:14:31,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:31 BoogieIcfgContainer [2025-03-08 15:14:31,317 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:14:31,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:14:31,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:14:31,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:14:31,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:14:30" (1/3) ... [2025-03-08 15:14:31,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc56579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:14:31, skipping insertion in model container [2025-03-08 15:14:31,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:31" (2/3) ... [2025-03-08 15:14:31,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc56579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:14:31, skipping insertion in model container [2025-03-08 15:14:31,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:31" (3/3) ... [2025-03-08 15:14:31,324 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-12.i [2025-03-08 15:14:31,334 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:14:31,335 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-12.i that has 2 procedures, 29 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:14:31,371 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:14:31,378 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;@57b5141e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:14:31,378 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:14:31,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-08 15:14:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 15:14:31,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:14:31,385 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 15:14:31,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:14:31,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:14:31,389 INFO L85 PathProgramCache]: Analyzing trace with hash -438787047, now seen corresponding path program 1 times [2025-03-08 15:14:31,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:14:31,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423095685] [2025-03-08 15:14:31,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:14:31,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:14:31,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:14:31,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:14:31,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:14:31,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:14:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-03-08 15:14:31,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:14:31,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423095685] [2025-03-08 15:14:31,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423095685] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:14:31,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293765071] [2025-03-08 15:14:31,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:14:31,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:14:31,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:14:31,542 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 15:14:31,544 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 15:14:31,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:14:31,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:14:31,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:14:31,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:14:31,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:14:31,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:14:31,644 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-03-08 15:14:31,644 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:14:31,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293765071] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:14:31,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 15:14:31,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 15:14:31,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104377208] [2025-03-08 15:14:31,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:14:31,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:14:31,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:14:31,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:14:31,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:14:31,664 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-08 15:14:31,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:14:31,676 INFO L93 Difference]: Finished difference Result 52 states and 75 transitions. [2025-03-08 15:14:31,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:14:31,681 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2025-03-08 15:14:31,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:14:31,685 INFO L225 Difference]: With dead ends: 52 [2025-03-08 15:14:31,685 INFO L226 Difference]: Without dead ends: 26 [2025-03-08 15:14:31,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 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 15:14:31,690 INFO L435 NwaCegarLoop]: 32 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, 32 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 15:14:31,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:14:31,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-03-08 15:14:31,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-03-08 15:14:31,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-08 15:14:31,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2025-03-08 15:14:31,714 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 44 [2025-03-08 15:14:31,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:14:31,714 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2025-03-08 15:14:31,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-08 15:14:31,714 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2025-03-08 15:14:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 15:14:31,716 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:14:31,716 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 15:14:31,722 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 15:14:31,916 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 15:14:31,917 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:14:31,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:14:31,917 INFO L85 PathProgramCache]: Analyzing trace with hash -565716103, now seen corresponding path program 1 times [2025-03-08 15:14:31,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:14:31,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676853367] [2025-03-08 15:14:31,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:14:31,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:14:31,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:14:31,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:14:31,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:14:31,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:14:31,985 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 15:14:31,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:14:32,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:14:32,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:14:32,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:14:32,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 15:14:32,050 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 15:14:32,050 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 15:14:32,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 15:14:32,053 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-08 15:14:32,080 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 15:14:32,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:14:32 BoogieIcfgContainer [2025-03-08 15:14:32,083 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 15:14:32,084 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 15:14:32,084 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 15:14:32,084 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 15:14:32,085 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:31" (3/4) ... [2025-03-08 15:14:32,086 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 15:14:32,087 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 15:14:32,087 INFO L158 Benchmark]: Toolchain (without parser) took 1140.16ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 40.0MB in the end (delta: 65.8MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-08 15:14:32,087 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 192.9MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:14:32,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 139.68ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 94.1MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:14:32,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.72ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 92.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:14:32,088 INFO L158 Benchmark]: Boogie Preprocessor took 19.29ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:14:32,088 INFO L158 Benchmark]: IcfgBuilder took 190.24ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 78.7MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:14:32,088 INFO L158 Benchmark]: TraceAbstraction took 764.45ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 40.3MB in the end (delta: 37.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-08 15:14:32,088 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 142.6MB. Free memory was 40.3MB in the beginning and 40.0MB in the end (delta: 289.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:14:32,089 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 192.9MB. Free memory is still 118.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 139.68ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 94.1MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.72ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 92.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.29ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 190.24ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 78.7MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 764.45ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 40.3MB in the end (delta: 37.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 142.6MB. Free memory was 40.3MB in the beginning and 40.0MB in the end (delta: 289.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 4; [L23] signed char var_1_4 = -1; [L24] signed char var_1_5 = 100; [L25] signed long int var_1_6 = 1000; [L26] double var_1_7 = 4.5; [L27] unsigned char var_1_8 = 1; [L28] unsigned char var_1_9 = 0; [L29] signed long int var_1_10 = 256; [L30] signed char last_1_var_1_1 = 4; VAL [isInitial=0, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=-1, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L62] isInitial = 1 [L63] FCALL initially() [L64] COND TRUE 1 [L65] CALL updateLastVariables() [L55] last_1_var_1_1 = var_1_1 VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=-1, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L65] RET updateLastVariables() [L66] CALL updateVariables() [L44] var_1_4 = __VERIFIER_nondet_char() [L45] CALL assume_abort_if_not(var_1_4 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L45] RET assume_abort_if_not(var_1_4 >= -126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L46] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L46] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L47] var_1_5 = __VERIFIER_nondet_char() [L48] CALL assume_abort_if_not(var_1_5 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L48] RET assume_abort_if_not(var_1_5 >= -126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L49] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L49] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L50] var_1_9 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L51] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L52] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L52] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L66] RET updateVariables() [L67] CALL step() [L34] var_1_7 = 199.5 [L35] var_1_8 = var_1_9 [L36] var_1_10 = var_1_5 [L37] signed long int stepLocal_0 = var_1_10; VAL [isInitial=1, last_1_var_1_1=4, stepLocal_0=4, var_1_10=4, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=399/2, var_1_8=0, var_1_9=0] [L38] COND TRUE stepLocal_0 >= last_1_var_1_1 [L39] var_1_1 = (((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) < 0 ) ? -((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) : ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=399/2, var_1_8=0, var_1_9=0] [L41] var_1_6 = ((((var_1_4) > (var_1_1)) ? (var_1_4) : (var_1_1))) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] [L67] RET step() [L68] CALL, EXPR property() [L58-L59] return (((((var_1_10 >= last_1_var_1_1) ? (var_1_1 == ((signed char) (((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) < 0 ) ? -((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) : ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) : 1) && (var_1_6 == ((signed long int) ((((var_1_4) > (var_1_1)) ? (var_1_4) : (var_1_1)))))) && (var_1_7 == ((double) 199.5))) && (var_1_8 == ((unsigned char) var_1_9))) && (var_1_10 == ((signed long int) var_1_5)) ; VAL [\result=0, isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] [L68] RET, EXPR property() [L68] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 43 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 6, 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, 32 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, 32 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 110/120 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 15:14:32,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.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 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:14:33,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:14:33,953 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 15:14:33,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:14:33,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:14:33,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:14:33,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:14:33,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:14:33,982 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:14:33,983 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:14:33,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:14:33,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:14:33,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:14:33,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:14:33,984 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:14:33,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:14:33,984 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:14:33,984 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:14:33,985 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:14:33,986 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:14:33,986 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:14:33,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:14:33,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:14:33,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:14:33,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:14:33,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:14:33,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:14:33,987 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:14:33,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:14:33,987 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 15:14:33,987 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 15:14:33,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:14:33,987 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:14:33,987 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:14:33,987 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:14:33,987 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 -> 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b [2025-03-08 15:14:34,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:14:34,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:14:34,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:14:34,275 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:14:34,275 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:14:34,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2025-03-08 15:14:35,427 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b34136a56/669da1e640fd40609f0d5daef237ea4d/FLAG7bf60dffd [2025-03-08 15:14:35,619 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:14:35,619 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2025-03-08 15:14:35,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b34136a56/669da1e640fd40609f0d5daef237ea4d/FLAG7bf60dffd [2025-03-08 15:14:35,971 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b34136a56/669da1e640fd40609f0d5daef237ea4d [2025-03-08 15:14:35,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:14:35,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:14:35,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:14:35,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:14:35,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:14:35,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:14:35" (1/1) ... [2025-03-08 15:14:35,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e03d0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:35, skipping insertion in model container [2025-03-08 15:14:35,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:14:35" (1/1) ... [2025-03-08 15:14:35,988 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:14:36,092 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-12.i[915,928] [2025-03-08 15:14:36,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:14:36,138 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:14:36,147 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-12.i[915,928] [2025-03-08 15:14:36,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:14:36,178 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:14:36,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36 WrapperNode [2025-03-08 15:14:36,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:14:36,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:14:36,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:14:36,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:14:36,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,205 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 63 [2025-03-08 15:14:36,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:14:36,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:14:36,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:14:36,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:14:36,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,213 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,222 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 15:14:36,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,227 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:14:36,231 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:14:36,231 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:14:36,232 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:14:36,232 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (1/1) ... [2025-03-08 15:14:36,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:14:36,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:14:36,256 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 15:14:36,259 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 15:14:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:14:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 15:14:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:14:36,279 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:14:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:14:36,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:14:36,322 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:14:36,324 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:14:36,478 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-03-08 15:14:36,478 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:14:36,488 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:14:36,488 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:14:36,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:36 BoogieIcfgContainer [2025-03-08 15:14:36,488 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:14:36,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:14:36,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:14:36,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:14:36,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:14:35" (1/3) ... [2025-03-08 15:14:36,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5b75d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:14:36, skipping insertion in model container [2025-03-08 15:14:36,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:36" (2/3) ... [2025-03-08 15:14:36,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5b75d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:14:36, skipping insertion in model container [2025-03-08 15:14:36,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:36" (3/3) ... [2025-03-08 15:14:36,499 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-12.i [2025-03-08 15:14:36,510 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:14:36,512 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-12.i that has 2 procedures, 29 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:14:36,555 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:14:36,564 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;@446e1005, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:14:36,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:14:36,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-08 15:14:36,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 15:14:36,573 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:14:36,573 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 15:14:36,574 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:14:36,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:14:36,578 INFO L85 PathProgramCache]: Analyzing trace with hash -438787047, now seen corresponding path program 1 times [2025-03-08 15:14:36,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:14:36,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092548393] [2025-03-08 15:14:36,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:14:36,585 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 15:14:36,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:14:36,590 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 15:14:36,591 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 15:14:36,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:14:36,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:14:36,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:14:36,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:14:36,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:14:36,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:14:36,692 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-08 15:14:36,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:14:36,694 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:14:36,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092548393] [2025-03-08 15:14:36,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092548393] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:14:36,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:14:36,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 15:14:36,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126090409] [2025-03-08 15:14:36,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:14:36,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:14:36,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:14:36,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:14:36,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:14:36,716 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-08 15:14:36,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:14:36,733 INFO L93 Difference]: Finished difference Result 52 states and 75 transitions. [2025-03-08 15:14:36,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:14:36,734 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2025-03-08 15:14:36,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:14:36,739 INFO L225 Difference]: With dead ends: 52 [2025-03-08 15:14:36,739 INFO L226 Difference]: Without dead ends: 26 [2025-03-08 15:14:36,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 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 15:14:36,744 INFO L435 NwaCegarLoop]: 32 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, 32 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 15:14:36,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:14:36,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-03-08 15:14:36,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-03-08 15:14:36,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-08 15:14:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2025-03-08 15:14:36,766 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 44 [2025-03-08 15:14:36,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:14:36,766 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2025-03-08 15:14:36,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-08 15:14:36,766 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2025-03-08 15:14:36,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 15:14:36,767 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:14:36,767 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 15:14:36,772 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 15:14:36,968 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 15:14:36,968 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:14:36,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:14:36,969 INFO L85 PathProgramCache]: Analyzing trace with hash -565716103, now seen corresponding path program 1 times [2025-03-08 15:14:36,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:14:36,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573361047] [2025-03-08 15:14:36,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:14:36,969 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 15:14:36,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:14:36,972 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 15:14:36,974 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 15:14:37,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:14:37,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:14:37,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:14:37,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:14:37,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-08 15:14:37,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:14:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-08 15:14:40,959 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:14:40,959 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:14:40,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573361047] [2025-03-08 15:14:40,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573361047] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:14:40,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:14:40,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 15:14:40,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001874493] [2025-03-08 15:14:40,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:14:40,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 15:14:40,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:14:40,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 15:14:40,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-08 15:14:40,963 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:14:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:14:41,161 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2025-03-08 15:14:41,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 15:14:41,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2025-03-08 15:14:41,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:14:41,162 INFO L225 Difference]: With dead ends: 44 [2025-03-08 15:14:41,162 INFO L226 Difference]: Without dead ends: 42 [2025-03-08 15:14:41,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-08 15:14:41,163 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 28 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 15:14:41,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 141 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 15:14:41,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2025-03-08 15:14:41,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2025-03-08 15:14:41,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 15:14:41,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2025-03-08 15:14:41,172 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 44 [2025-03-08 15:14:41,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:14:41,173 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2025-03-08 15:14:41,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:14:41,173 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2025-03-08 15:14:41,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 15:14:41,174 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:14:41,174 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 15:14:41,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-03-08 15:14:41,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:14:41,377 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:14:41,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:14:41,378 INFO L85 PathProgramCache]: Analyzing trace with hash -537086952, now seen corresponding path program 1 times [2025-03-08 15:14:41,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:14:41,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408220915] [2025-03-08 15:14:41,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:14:41,379 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 15:14:41,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:14:41,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:14:41,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-03-08 15:14:41,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:14:41,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:14:41,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:14:41,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:14:41,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-08 15:14:41,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:14:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-08 15:14:43,472 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:14:43,472 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:14:43,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408220915] [2025-03-08 15:14:43,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408220915] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:14:43,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:14:43,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 15:14:43,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887296972] [2025-03-08 15:14:43,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:14:43,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 15:14:43,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:14:43,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 15:14:43,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-03-08 15:14:43,474 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:14:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:14:43,684 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2025-03-08 15:14:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 15:14:43,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2025-03-08 15:14:43,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:14:43,685 INFO L225 Difference]: With dead ends: 66 [2025-03-08 15:14:43,685 INFO L226 Difference]: Without dead ends: 64 [2025-03-08 15:14:43,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2025-03-08 15:14:43,686 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 18 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 15:14:43,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 184 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 15:14:43,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-03-08 15:14:43,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2025-03-08 15:14:43,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 45 states have internal predecessors, (47), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-08 15:14:43,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2025-03-08 15:14:43,696 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 44 [2025-03-08 15:14:43,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:14:43,696 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2025-03-08 15:14:43,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:14:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2025-03-08 15:14:43,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-03-08 15:14:43,697 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:14:43,697 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:14:43,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-03-08 15:14:43,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:14:43,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:14:43,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:14:43,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2059089987, now seen corresponding path program 1 times [2025-03-08 15:14:43,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:14:43,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089135553] [2025-03-08 15:14:43,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:14:43,901 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 15:14:43,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:14:43,904 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:14:43,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-03-08 15:14:43,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-08 15:14:43,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-08 15:14:43,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:14:43,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:14:43,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 15:14:43,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:14:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2025-03-08 15:14:45,225 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:14:45,225 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:14:45,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089135553] [2025-03-08 15:14:45,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089135553] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:14:45,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:14:45,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 15:14:45,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663826385] [2025-03-08 15:14:45,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:14:45,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 15:14:45,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:14:45,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 15:14:45,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-08 15:14:45,227 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:14:45,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:14:45,335 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2025-03-08 15:14:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 15:14:45,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 85 [2025-03-08 15:14:45,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:14:45,336 INFO L225 Difference]: With dead ends: 65 [2025-03-08 15:14:45,336 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 15:14:45,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-08 15:14:45,337 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 15:14:45,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 123 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 15:14:45,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 15:14:45,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 15:14:45,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 15:14:45,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 15:14:45,339 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2025-03-08 15:14:45,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:14:45,339 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 15:14:45,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:14:45,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 15:14:45,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 15:14:45,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 15:14:45,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2025-03-08 15:14:45,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:14:45,548 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-08 15:14:45,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 15:14:45,706 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 15:14:45,712 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:14:45,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:14:45 BoogieIcfgContainer [2025-03-08 15:14:45,714 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 15:14:45,715 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 15:14:45,715 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 15:14:45,715 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 15:14:45,716 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:36" (3/4) ... [2025-03-08 15:14:45,717 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 15:14:45,721 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-08 15:14:45,723 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-03-08 15:14:45,723 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-08 15:14:45,723 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 15:14:45,723 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 15:14:45,781 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 15:14:45,781 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 15:14:45,781 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 15:14:45,782 INFO L158 Benchmark]: Toolchain (without parser) took 9807.78ms. Allocated memory was 117.4MB in the beginning and 704.6MB in the end (delta: 587.2MB). Free memory was 93.2MB in the beginning and 535.4MB in the end (delta: -442.2MB). Peak memory consumption was 139.6MB. Max. memory is 16.1GB. [2025-03-08 15:14:45,782 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:14:45,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.29ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 80.7MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:14:45,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.16ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:14:45,782 INFO L158 Benchmark]: Boogie Preprocessor took 24.84ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:14:45,782 INFO L158 Benchmark]: IcfgBuilder took 257.20ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 65.3MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:14:45,783 INFO L158 Benchmark]: TraceAbstraction took 9224.01ms. Allocated memory was 117.4MB in the beginning and 704.6MB in the end (delta: 587.2MB). Free memory was 64.8MB in the beginning and 539.4MB in the end (delta: -474.5MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. [2025-03-08 15:14:45,783 INFO L158 Benchmark]: Witness Printer took 66.07ms. Allocated memory is still 704.6MB. Free memory was 539.4MB in the beginning and 535.4MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:14:45,785 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.29ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 80.7MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.16ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.84ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 257.20ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 65.3MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9224.01ms. Allocated memory was 117.4MB in the beginning and 704.6MB in the end (delta: 587.2MB). Free memory was 64.8MB in the beginning and 539.4MB in the end (delta: -474.5MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. * Witness Printer took 66.07ms. Allocated memory is still 704.6MB. Free memory was 539.4MB in the beginning and 535.4MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 43 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 480 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 343 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 207 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 137 mSDtfsCounter, 207 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 773 SizeOfPredicates, 30 NumberOfNonLiveVariables, 393 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 460/460 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 64]: Location Invariant Derived location invariant: (((var_1_1 == 4) && (4 == last_1_var_1_1)) || ((var_1_5 == var_1_10) && (var_1_8 == var_1_9))) RESULT: Ultimate proved your program to be correct! [2025-03-08 15:14:45,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE