./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.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-69.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 be2af847ca6e6b21a33c086089fa377d9cd33581334f785b17b8fcc9e5016299 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:16:50,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:16:50,714 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 15:16:50,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:16:50,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:16:50,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:16:50,736 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:16:50,736 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:16:50,736 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:16:50,736 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:16:50,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:16:50,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:16:50,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:16:50,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:16:50,737 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:16:50,737 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:50,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:16:50,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:16:50,738 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 -> be2af847ca6e6b21a33c086089fa377d9cd33581334f785b17b8fcc9e5016299 [2025-03-08 15:16:50,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:16:50,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:16:50,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:16:50,935 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:16:50,935 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:16:50,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i [2025-03-08 15:16:52,071 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928cc5b2d/c3da60f7b70c45ba88ddc04bbe93b65a/FLAG070e57e42 [2025-03-08 15:16:52,279 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:16:52,280 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i [2025-03-08 15:16:52,285 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928cc5b2d/c3da60f7b70c45ba88ddc04bbe93b65a/FLAG070e57e42 [2025-03-08 15:16:52,649 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928cc5b2d/c3da60f7b70c45ba88ddc04bbe93b65a [2025-03-08 15:16:52,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:16:52,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:16:52,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:52,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:16:52,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:16:52,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139279b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52, skipping insertion in model container [2025-03-08 15:16:52,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,673 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:16:52,769 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-69.i[915,928] [2025-03-08 15:16:52,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:52,803 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:16:52,812 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-69.i[915,928] [2025-03-08 15:16:52,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:52,836 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:16:52,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52 WrapperNode [2025-03-08 15:16:52,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:52,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:52,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:16:52,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:16:52,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,870 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 73 [2025-03-08 15:16:52,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:52,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:16:52,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:16:52,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:16:52,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,882 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,892 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 15:16:52,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,898 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:16:52,909 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:16:52,912 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:16:52,913 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:16:52,913 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (1/1) ... [2025-03-08 15:16:52,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:52,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:16:52,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 15:16:52,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 15:16:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:16:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:16:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:16:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 15:16:52,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:16:52,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:16:53,006 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:16:53,007 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:16:53,177 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-08 15:16:53,177 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:16:53,182 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:16:53,183 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:16:53,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:53 BoogieIcfgContainer [2025-03-08 15:16:53,183 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:16:53,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:16:53,184 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:16:53,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:16:53,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:16:52" (1/3) ... [2025-03-08 15:16:53,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bb1729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:53, skipping insertion in model container [2025-03-08 15:16:53,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:52" (2/3) ... [2025-03-08 15:16:53,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bb1729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:53, skipping insertion in model container [2025-03-08 15:16:53,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:53" (3/3) ... [2025-03-08 15:16:53,190 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-69.i [2025-03-08 15:16:53,200 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:16:53,202 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-69.i that has 2 procedures, 37 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:16:53,245 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:16:53,256 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;@37d0c5ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:16:53,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:16:53,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-08 15:16:53,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 15:16:53,268 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:53,268 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:16:53,269 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:53,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:53,273 INFO L85 PathProgramCache]: Analyzing trace with hash -61359923, now seen corresponding path program 1 times [2025-03-08 15:16:53,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:16:53,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446614428] [2025-03-08 15:16:53,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:53,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:16:53,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 15:16:53,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 15:16:53,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:53,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-03-08 15:16:53,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:16:53,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446614428] [2025-03-08 15:16:53,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446614428] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:16:53,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283738514] [2025-03-08 15:16:53,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:53,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:16:53,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:16:53,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 15:16:53,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 15:16:53,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 15:16:53,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 15:16:53,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:53,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:53,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:16:53,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:16:53,535 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-03-08 15:16:53,535 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:16:53,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283738514] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:16:53,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 15:16:53,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 15:16:53,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752034780] [2025-03-08 15:16:53,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:16:53,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:16:53,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:16:53,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:16:53,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:53,558 INFO L87 Difference]: Start difference. First operand has 37 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-08 15:16:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:16:53,571 INFO L93 Difference]: Finished difference Result 68 states and 108 transitions. [2025-03-08 15:16:53,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:16:53,572 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, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2025-03-08 15:16:53,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:16:53,576 INFO L225 Difference]: With dead ends: 68 [2025-03-08 15:16:53,576 INFO L226 Difference]: Without dead ends: 34 [2025-03-08 15:16:53,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:53,580 INFO L435 NwaCegarLoop]: 46 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, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:16:53,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:16:53,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-03-08 15:16:53,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-03-08 15:16:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-08 15:16:53,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2025-03-08 15:16:53,607 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 71 [2025-03-08 15:16:53,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:16:53,608 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2025-03-08 15:16:53,608 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, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-08 15:16:53,608 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2025-03-08 15:16:53,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 15:16:53,612 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:53,612 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:16:53,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 15:16:53,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 15:16:53,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:53,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:53,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1510256750, now seen corresponding path program 1 times [2025-03-08 15:16:53,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:16:53,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524097703] [2025-03-08 15:16:53,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:53,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:16:53,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 15:16:53,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 15:16:53,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:53,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:16:53,882 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 15:16:53,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 15:16:53,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 15:16:53,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:53,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:16:53,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 15:16:53,955 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 15:16:53,956 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 15:16:53,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 15:16:53,959 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-08 15:16:54,003 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 15:16:54,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:16:54 BoogieIcfgContainer [2025-03-08 15:16:54,005 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 15:16:54,005 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 15:16:54,005 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 15:16:54,005 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 15:16:54,006 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:53" (3/4) ... [2025-03-08 15:16:54,007 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 15:16:54,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 15:16:54,008 INFO L158 Benchmark]: Toolchain (without parser) took 1355.14ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 112.2MB in the end (delta: 2.7MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2025-03-08 15:16:54,008 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:54,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.41ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 103.5MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:54,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.06ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:54,009 INFO L158 Benchmark]: Boogie Preprocessor took 34.29ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 100.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:54,009 INFO L158 Benchmark]: IcfgBuilder took 274.28ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 86.7MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:54,009 INFO L158 Benchmark]: TraceAbstraction took 820.48ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 113.1MB in the end (delta: -27.0MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2025-03-08 15:16:54,009 INFO L158 Benchmark]: Witness Printer took 2.35ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 112.2MB in the end (delta: 838.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:16:54,010 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 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.41ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 103.5MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.06ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.29ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 100.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 274.28ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 86.7MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 820.48ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 113.1MB in the end (delta: -27.0MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Witness Printer took 2.35ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 112.2MB in the end (delta: 838.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 34, overapproximation of someBinaryFLOATComparisonOperation at line 64, overapproximation of someBinaryFLOATComparisonOperation at line 59. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_3 = 1; [L24] unsigned char var_1_4 = 0; [L25] unsigned char var_1_5 = 0; [L26] unsigned char var_1_6 = 0; [L27] unsigned char var_1_7 = 1; [L28] float var_1_8 = 127.4; [L29] float var_1_9 = 24.75; VAL [isInitial=0, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L68] isInitial = 1 [L69] FCALL initially() [L70] COND TRUE 1 [L71] FCALL updateLastVariables() [L72] CALL updateVariables() [L43] var_1_3 = __VERIFIER_nondet_uchar() [L44] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L44] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L45] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L45] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L46] var_1_4 = __VERIFIER_nondet_uchar() [L47] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L47] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L48] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L48] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L49] var_1_5 = __VERIFIER_nondet_uchar() [L50] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L50] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L51] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L51] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L52] var_1_6 = __VERIFIER_nondet_uchar() [L53] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L53] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L54] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L54] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L55] var_1_7 = __VERIFIER_nondet_uchar() [L56] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L56] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L57] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L57] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5, var_1_9=99/4] [L58] var_1_9 = __VERIFIER_nondet_float() [L59] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5] [L59] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=637/5] [L72] RET updateVariables() [L73] CALL step() [L33] var_1_8 = var_1_9 VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=132, var_1_9=132] [L34] COND FALSE !(1.875f != ((((63.1f) > (var_1_8)) ? (63.1f) : (var_1_8)))) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=132, var_1_9=132] [L73] RET step() [L74] CALL, EXPR property() [L64-L65] return ((1.875f != ((((63.1f) > (var_1_8)) ? (63.1f) : (var_1_8)))) ? (var_1_3 ? (var_1_1 == ((unsigned char) ((var_1_4 || var_1_5) || var_1_6))) : (var_1_1 == ((unsigned char) (! var_1_7)))) : 1) && (var_1_8 == ((float) var_1_9)) ; VAL [\result=0, isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=132, var_1_9=132] [L74] RET, EXPR property() [L74] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=132, var_1_9=132] [L19] reach_error() VAL [isInitial=1, var_1_1=0, var_1_3=1, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=132, var_1_9=132] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 62 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 46 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, 46 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 420/440 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-08 15:16:54,023 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-69.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 be2af847ca6e6b21a33c086089fa377d9cd33581334f785b17b8fcc9e5016299 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:16:55,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:16:55,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 15:16:55,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:16:55,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:16:55,873 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:16:55,875 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:16:55,875 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:16:55,875 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:16:55,875 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:16:55,876 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:16:55,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:16:55,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:16:55,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:16:55,877 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:16:55,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:55,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:16:55,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:16:55,878 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:16:55,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:16:55,878 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 15:16:55,878 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 15:16:55,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:16:55,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:16:55,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:16:55,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:16:55,878 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 -> be2af847ca6e6b21a33c086089fa377d9cd33581334f785b17b8fcc9e5016299 [2025-03-08 15:16:56,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:16:56,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:16:56,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:16:56,112 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:16:56,112 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:16:56,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i [2025-03-08 15:16:57,233 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a7d2e40/f2b25261883f4fe0ab6ad29f2192a55c/FLAG1776b5deb [2025-03-08 15:16:57,435 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:16:57,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-69.i [2025-03-08 15:16:57,442 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a7d2e40/f2b25261883f4fe0ab6ad29f2192a55c/FLAG1776b5deb [2025-03-08 15:16:57,808 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a7d2e40/f2b25261883f4fe0ab6ad29f2192a55c [2025-03-08 15:16:57,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:16:57,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:16:57,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:57,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:16:57,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:16:57,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:57,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3edf5729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57, skipping insertion in model container [2025-03-08 15:16:57,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:57,827 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:16:57,923 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-69.i[915,928] [2025-03-08 15:16:57,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:57,952 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:16:57,959 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-69.i[915,928] [2025-03-08 15:16:57,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:16:57,977 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:16:57,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57 WrapperNode [2025-03-08 15:16:57,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:16:57,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:57,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:16:57,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:16:57,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:57,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,004 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 73 [2025-03-08 15:16:58,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:16:58,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:16:58,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:16:58,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:16:58,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,019 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 15:16:58,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,024 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:16:58,029 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:16:58,029 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:16:58,029 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:16:58,030 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (1/1) ... [2025-03-08 15:16:58,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:16:58,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:16:58,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 15:16:58,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 15:16:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:16:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 15:16:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:16:58,074 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:16:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:16:58,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:16:58,117 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:16:58,119 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:16:58,275 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-08 15:16:58,276 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:16:58,286 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:16:58,286 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:16:58,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:58 BoogieIcfgContainer [2025-03-08 15:16:58,287 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:16:58,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:16:58,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:16:58,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:16:58,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:16:57" (1/3) ... [2025-03-08 15:16:58,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756556c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:58, skipping insertion in model container [2025-03-08 15:16:58,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:16:57" (2/3) ... [2025-03-08 15:16:58,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756556c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:16:58, skipping insertion in model container [2025-03-08 15:16:58,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:58" (3/3) ... [2025-03-08 15:16:58,297 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-69.i [2025-03-08 15:16:58,310 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:16:58,311 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-69.i that has 2 procedures, 37 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:16:58,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:16:58,366 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;@d99566b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:16:58,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:16:58,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-08 15:16:58,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 15:16:58,375 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:58,376 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:16:58,376 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:58,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash -61359923, now seen corresponding path program 1 times [2025-03-08 15:16:58,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:16:58,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923556193] [2025-03-08 15:16:58,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:58,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:16:58,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:16:58,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:16:58,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-08 15:16:58,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 15:16:58,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 15:16:58,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:58,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:58,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:16:58,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:16:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-03-08 15:16:58,540 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:16:58,540 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:16:58,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923556193] [2025-03-08 15:16:58,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923556193] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:16:58,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:16:58,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 15:16:58,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849400118] [2025-03-08 15:16:58,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:16:58,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:16:58,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:16:58,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:16:58,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:58,564 INFO L87 Difference]: Start difference. First operand has 37 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-08 15:16:58,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:16:58,581 INFO L93 Difference]: Finished difference Result 68 states and 108 transitions. [2025-03-08 15:16:58,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:16:58,583 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2025-03-08 15:16:58,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:16:58,588 INFO L225 Difference]: With dead ends: 68 [2025-03-08 15:16:58,588 INFO L226 Difference]: Without dead ends: 34 [2025-03-08 15:16:58,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:16:58,594 INFO L435 NwaCegarLoop]: 45 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, 45 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:16:58,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:16:58,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-03-08 15:16:58,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-03-08 15:16:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-08 15:16:58,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2025-03-08 15:16:58,620 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 71 [2025-03-08 15:16:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:16:58,620 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2025-03-08 15:16:58,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-08 15:16:58,621 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2025-03-08 15:16:58,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-08 15:16:58,622 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:16:58,622 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:16:58,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-08 15:16:58,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:16:58,823 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:16:58,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:16:58,824 INFO L85 PathProgramCache]: Analyzing trace with hash -454325095, now seen corresponding path program 1 times [2025-03-08 15:16:58,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:16:58,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801288836] [2025-03-08 15:16:58,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:16:58,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:16:58,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:16:58,826 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:16:58,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-08 15:16:58,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 15:16:58,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 15:16:58,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:16:58,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:16:58,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-08 15:16:58,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:17:01,319 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 15:17:01,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 15:17:02,374 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:17:02,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801288836] [2025-03-08 15:17:02,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801288836] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:17:02,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1734334777] [2025-03-08 15:17:02,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:17:02,375 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-08 15:17:02,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-08 15:17:02,377 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-08 15:17:02,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2025-03-08 15:17:02,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 15:17:02,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 15:17:02,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:17:02,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:17:02,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-08 15:17:02,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:17:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 170 proven. 27 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-08 15:17:03,879 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 15:17:04,732 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-03-08 15:17:04,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1734334777] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-08 15:17:04,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-08 15:17:04,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21, 18] total 43 [2025-03-08 15:17:04,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98636003] [2025-03-08 15:17:04,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:17:04,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 15:17:04,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:17:04,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 15:17:04,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=1794, Unknown=0, NotChecked=0, Total=2162 [2025-03-08 15:17:04,735 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-03-08 15:17:04,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:17:04,991 INFO L93 Difference]: Finished difference Result 65 states and 85 transitions. [2025-03-08 15:17:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 15:17:04,991 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2025-03-08 15:17:04,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:17:04,992 INFO L225 Difference]: With dead ends: 65 [2025-03-08 15:17:04,992 INFO L226 Difference]: Without dead ends: 63 [2025-03-08 15:17:04,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=384, Invalid=1968, Unknown=0, NotChecked=0, Total=2352 [2025-03-08 15:17:04,994 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 62 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 15:17:04,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 190 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 15:17:04,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2025-03-08 15:17:05,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2025-03-08 15:17:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 states have internal predecessors, (36), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2025-03-08 15:17:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 78 transitions. [2025-03-08 15:17:05,002 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 78 transitions. Word has length 72 [2025-03-08 15:17:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:17:05,003 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 78 transitions. [2025-03-08 15:17:05,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-03-08 15:17:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions. [2025-03-08 15:17:05,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-08 15:17:05,004 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:17:05,004 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:17:05,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2025-03-08 15:17:05,208 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 15:17:05,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 15:17:05,405 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:17:05,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:17:05,406 INFO L85 PathProgramCache]: Analyzing trace with hash -453401574, now seen corresponding path program 1 times [2025-03-08 15:17:05,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:17:05,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77829125] [2025-03-08 15:17:05,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:17:05,406 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 15:17:05,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:17:05,408 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 15:17:05,409 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 15:17:05,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 15:17:05,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 15:17:05,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:17:05,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:17:05,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-08 15:17:05,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:17:06,496 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-03-08 15:17:06,496 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:17:06,496 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:17:06,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77829125] [2025-03-08 15:17:06,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77829125] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:17:06,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:17:06,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 15:17:06,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066267745] [2025-03-08 15:17:06,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:17:06,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 15:17:06,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:17:06,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 15:17:06,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-08 15:17:06,498 INFO L87 Difference]: Start difference. First operand 58 states and 78 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-03-08 15:17:07,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:17:07,016 INFO L93 Difference]: Finished difference Result 89 states and 117 transitions. [2025-03-08 15:17:07,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-08 15:17:07,016 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2025-03-08 15:17:07,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:17:07,017 INFO L225 Difference]: With dead ends: 89 [2025-03-08 15:17:07,017 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 15:17:07,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2025-03-08 15:17:07,018 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 60 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 15:17:07,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 213 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 15:17:07,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 15:17:07,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 15:17:07,018 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 15:17:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 15:17:07,019 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2025-03-08 15:17:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:17:07,019 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 15:17:07,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-03-08 15:17:07,019 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 15:17:07,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 15:17:07,021 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 15:17:07,025 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 15:17:07,222 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 15:17:07,224 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-08 15:17:07,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 15:17:08,235 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 15:17:08,243 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:17:08,244 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-08 15:17:08,245 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:17:08,245 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:17:08,245 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:17:08,245 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:17:08,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:17:08 BoogieIcfgContainer [2025-03-08 15:17:08,246 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 15:17:08,246 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 15:17:08,246 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 15:17:08,246 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 15:17:08,247 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:16:58" (3/4) ... [2025-03-08 15:17:08,249 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 15:17:08,256 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-08 15:17:08,259 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-03-08 15:17:08,259 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-08 15:17:08,260 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 15:17:08,260 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 15:17:08,316 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 15:17:08,316 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 15:17:08,316 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 15:17:08,317 INFO L158 Benchmark]: Toolchain (without parser) took 10505.71ms. Allocated memory was 117.4MB in the beginning and 511.7MB in the end (delta: 394.3MB). Free memory was 92.3MB in the beginning and 350.4MB in the end (delta: -258.1MB). Peak memory consumption was 131.0MB. Max. memory is 16.1GB. [2025-03-08 15:17:08,317 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 61.8MB in the beginning and 61.7MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:17:08,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.25ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 79.9MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:17:08,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.67ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:17:08,317 INFO L158 Benchmark]: Boogie Preprocessor took 23.50ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 77.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:17:08,317 INFO L158 Benchmark]: IcfgBuilder took 257.87ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 64.4MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:17:08,318 INFO L158 Benchmark]: TraceAbstraction took 9956.98ms. Allocated memory was 117.4MB in the beginning and 511.7MB in the end (delta: 394.3MB). Free memory was 63.9MB in the beginning and 354.4MB in the end (delta: -290.5MB). Peak memory consumption was 105.9MB. Max. memory is 16.1GB. [2025-03-08 15:17:08,318 INFO L158 Benchmark]: Witness Printer took 69.88ms. Allocated memory is still 511.7MB. Free memory was 354.4MB in the beginning and 350.4MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:17:08,319 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 61.8MB in the beginning and 61.7MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.25ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 79.9MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.67ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.5MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.50ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 77.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 257.87ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 64.4MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9956.98ms. Allocated memory was 117.4MB in the beginning and 511.7MB in the end (delta: 394.3MB). Free memory was 63.9MB in the beginning and 354.4MB in the end (delta: -290.5MB). Peak memory consumption was 105.9MB. Max. memory is 16.1GB. * Witness Printer took 69.88ms. Allocated memory is still 511.7MB. Free memory was 354.4MB in the beginning and 350.4MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode * 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, 37 locations, 62 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 448 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 301 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 416 IncrementalHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 147 mSDtfsCounter, 416 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 372 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=2, InterpolantAutomatonStates: 27, 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, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 354 ConstructedInterpolants, 0 QuantifiedInterpolants, 2079 SizeOfPredicates, 31 NumberOfNonLiveVariables, 470 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 1052/1100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 15:17:08,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE