./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.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 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 03:44:54,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 03:44:54,657 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 03:44:54,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 03:44:54,665 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 03:44:54,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 03:44:54,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 03:44:54,696 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 03:44:54,696 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 03:44:54,696 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 03:44:54,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 03:44:54,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 03:44:54,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 03:44:54,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 03:44:54,697 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 03:44:54,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 03:44:54,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 03:44:54,697 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 03:44:54,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 03:44:54,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 03:44:54,697 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 03:44:54,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 03:44:54,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 03:44:54,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 03:44:54,698 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 03:44:54,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 03:44:54,698 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 03:44:54,698 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 03:44:54,698 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 03:44:54,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 03:44:54,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 03:44:54,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 03:44:54,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 03:44:54,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 03:44:54,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 03:44:54,699 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 03:44:54,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 03:44:54,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 03:44:54,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 03:44:54,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 03:44:54,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 03:44:54,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 03:44:54,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 03:44:54,699 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 -> 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a [2025-03-17 03:44:54,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 03:44:54,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 03:44:54,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 03:44:54,992 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 03:44:54,992 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 03:44:54,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i [2025-03-17 03:44:56,257 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e9c5389f/ca0a4e60512442e69b960171fdad63df/FLAG7447485ca [2025-03-17 03:44:56,578 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 03:44:56,579 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i [2025-03-17 03:44:56,587 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e9c5389f/ca0a4e60512442e69b960171fdad63df/FLAG7447485ca [2025-03-17 03:44:56,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e9c5389f/ca0a4e60512442e69b960171fdad63df [2025-03-17 03:44:56,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 03:44:56,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 03:44:56,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 03:44:56,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 03:44:56,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 03:44:56,870 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:44:56" (1/1) ... [2025-03-17 03:44:56,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3efdf9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:56, skipping insertion in model container [2025-03-17 03:44:56,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:44:56" (1/1) ... [2025-03-17 03:44:56,887 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 03:44:57,013 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_loopvsstraightlinecode_25-while_file-87.i[915,928] [2025-03-17 03:44:57,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 03:44:57,073 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 03:44:57,081 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_loopvsstraightlinecode_25-while_file-87.i[915,928] [2025-03-17 03:44:57,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 03:44:57,117 INFO L204 MainTranslator]: Completed translation [2025-03-17 03:44:57,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57 WrapperNode [2025-03-17 03:44:57,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 03:44:57,120 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 03:44:57,120 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 03:44:57,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 03:44:57,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,157 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2025-03-17 03:44:57,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 03:44:57,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 03:44:57,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 03:44:57,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 03:44:57,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,193 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 03:44:57,196 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,203 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 03:44:57,216 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 03:44:57,216 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 03:44:57,216 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 03:44:57,218 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (1/1) ... [2025-03-17 03:44:57,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 03:44:57,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 03:44:57,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 03:44:57,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 03:44:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 03:44:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 03:44:57,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 03:44:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 03:44:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 03:44:57,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 03:44:57,344 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 03:44:57,346 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 03:44:57,563 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L93: havoc property_#t~bitwise12#1;havoc property_#t~short13#1; [2025-03-17 03:44:57,588 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-03-17 03:44:57,588 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 03:44:57,600 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 03:44:57,601 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2025-03-17 03:44:57,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:44:57 BoogieIcfgContainer [2025-03-17 03:44:57,601 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 03:44:57,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 03:44:57,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 03:44:57,608 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 03:44:57,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:44:56" (1/3) ... [2025-03-17 03:44:57,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471eb2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:44:57, skipping insertion in model container [2025-03-17 03:44:57,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:44:57" (2/3) ... [2025-03-17 03:44:57,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471eb2f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:44:57, skipping insertion in model container [2025-03-17 03:44:57,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:44:57" (3/3) ... [2025-03-17 03:44:57,611 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-87.i [2025-03-17 03:44:57,624 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 03:44:57,626 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-87.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 03:44:57,676 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 03:44:57,686 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;@2612e656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 03:44:57,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 03:44:57,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-17 03:44:57,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-17 03:44:57,698 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:44:57,699 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:44:57,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:44:57,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:44:57,703 INFO L85 PathProgramCache]: Analyzing trace with hash -55140509, now seen corresponding path program 1 times [2025-03-17 03:44:57,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:44:57,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578876208] [2025-03-17 03:44:57,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:44:57,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:44:57,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-17 03:44:57,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-17 03:44:57,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:44:57,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:44:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 03:44:59,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:44:59,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578876208] [2025-03-17 03:44:59,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578876208] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:44:59,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:44:59,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 03:44:59,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046195549] [2025-03-17 03:44:59,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:44:59,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 03:44:59,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:44:59,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 03:44:59,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 03:44:59,827 INFO L87 Difference]: Start difference. First operand has 52 states, 35 states have (on average 1.4) internal successors, (49), 36 states have internal predecessors, (49), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:00,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:45:00,133 INFO L93 Difference]: Finished difference Result 144 states and 229 transitions. [2025-03-17 03:45:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 03:45:00,135 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2025-03-17 03:45:00,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:45:00,140 INFO L225 Difference]: With dead ends: 144 [2025-03-17 03:45:00,142 INFO L226 Difference]: Without dead ends: 93 [2025-03-17 03:45:00,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-03-17 03:45:00,149 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 63 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 03:45:00,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 369 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 03:45:00,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2025-03-17 03:45:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 62. [2025-03-17 03:45:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-17 03:45:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2025-03-17 03:45:00,190 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 93 [2025-03-17 03:45:00,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:45:00,192 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2025-03-17 03:45:00,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:00,193 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2025-03-17 03:45:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-17 03:45:00,196 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:45:00,196 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:00,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 03:45:00,197 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:45:00,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:45:00,198 INFO L85 PathProgramCache]: Analyzing trace with hash -560699134, now seen corresponding path program 1 times [2025-03-17 03:45:00,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:45:00,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913394370] [2025-03-17 03:45:00,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:00,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:45:00,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-17 03:45:00,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-17 03:45:00,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:00,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:45:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 03:45:00,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:45:00,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913394370] [2025-03-17 03:45:00,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913394370] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:45:00,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:45:00,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 03:45:00,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367888526] [2025-03-17 03:45:00,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:45:00,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 03:45:00,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:45:00,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 03:45:00,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 03:45:00,649 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:00,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:45:00,786 INFO L93 Difference]: Finished difference Result 164 states and 237 transitions. [2025-03-17 03:45:00,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 03:45:00,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2025-03-17 03:45:00,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:45:00,789 INFO L225 Difference]: With dead ends: 164 [2025-03-17 03:45:00,791 INFO L226 Difference]: Without dead ends: 103 [2025-03-17 03:45:00,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-17 03:45:00,792 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 63 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 03:45:00,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 445 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 03:45:00,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-17 03:45:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 60. [2025-03-17 03:45:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 44 states have internal predecessors, (60), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-17 03:45:00,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 88 transitions. [2025-03-17 03:45:00,806 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 88 transitions. Word has length 93 [2025-03-17 03:45:00,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:45:00,807 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 88 transitions. [2025-03-17 03:45:00,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:00,807 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 88 transitions. [2025-03-17 03:45:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-17 03:45:00,808 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:45:00,809 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:00,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 03:45:00,809 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:45:00,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:45:00,809 INFO L85 PathProgramCache]: Analyzing trace with hash -509008280, now seen corresponding path program 1 times [2025-03-17 03:45:00,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:45:00,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243082088] [2025-03-17 03:45:00,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:00,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:45:00,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-17 03:45:00,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-17 03:45:00,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:00,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:45:11,661 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 03:45:11,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:45:11,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243082088] [2025-03-17 03:45:11,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243082088] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:45:11,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:45:11,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 03:45:11,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271519821] [2025-03-17 03:45:11,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:45:11,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 03:45:11,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:45:11,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 03:45:11,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 03:45:11,664 INFO L87 Difference]: Start difference. First operand 60 states and 88 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:45:12,399 INFO L93 Difference]: Finished difference Result 199 states and 283 transitions. [2025-03-17 03:45:12,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 03:45:12,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2025-03-17 03:45:12,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:45:12,403 INFO L225 Difference]: With dead ends: 199 [2025-03-17 03:45:12,406 INFO L226 Difference]: Without dead ends: 140 [2025-03-17 03:45:12,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2025-03-17 03:45:12,407 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 03:45:12,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 265 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 03:45:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2025-03-17 03:45:12,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 65. [2025-03-17 03:45:12,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 49 states have internal predecessors, (68), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-17 03:45:12,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 96 transitions. [2025-03-17 03:45:12,418 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 96 transitions. Word has length 94 [2025-03-17 03:45:12,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:45:12,419 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 96 transitions. [2025-03-17 03:45:12,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:12,419 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 96 transitions. [2025-03-17 03:45:12,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-17 03:45:12,422 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:45:12,423 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:12,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 03:45:12,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:45:12,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:45:12,423 INFO L85 PathProgramCache]: Analyzing trace with hash -379925561, now seen corresponding path program 1 times [2025-03-17 03:45:12,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:45:12,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874714660] [2025-03-17 03:45:12,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:12,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:45:12,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-17 03:45:12,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-17 03:45:12,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:12,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:45:12,727 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 03:45:12,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:45:12,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874714660] [2025-03-17 03:45:12,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874714660] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:45:12,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:45:12,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 03:45:12,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129601213] [2025-03-17 03:45:12,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:45:12,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 03:45:12,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:45:12,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 03:45:12,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 03:45:12,730 INFO L87 Difference]: Start difference. First operand 65 states and 96 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:12,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:45:12,996 INFO L93 Difference]: Finished difference Result 191 states and 273 transitions. [2025-03-17 03:45:12,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 03:45:12,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2025-03-17 03:45:12,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:45:12,998 INFO L225 Difference]: With dead ends: 191 [2025-03-17 03:45:12,998 INFO L226 Difference]: Without dead ends: 127 [2025-03-17 03:45:12,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-17 03:45:12,999 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 66 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 03:45:13,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 325 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 03:45:13,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2025-03-17 03:45:13,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 108. [2025-03-17 03:45:13,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 89 states have (on average 1.404494382022472) internal successors, (125), 90 states have internal predecessors, (125), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-17 03:45:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2025-03-17 03:45:13,011 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 94 [2025-03-17 03:45:13,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:45:13,011 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2025-03-17 03:45:13,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:13,011 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2025-03-17 03:45:13,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-17 03:45:13,013 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:45:13,013 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:13,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 03:45:13,013 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:45:13,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:45:13,014 INFO L85 PathProgramCache]: Analyzing trace with hash 998543529, now seen corresponding path program 1 times [2025-03-17 03:45:13,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:45:13,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421730021] [2025-03-17 03:45:13,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:13,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:45:13,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-17 03:45:13,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-17 03:45:13,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:13,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:45:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 03:45:13,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:45:13,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421730021] [2025-03-17 03:45:13,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421730021] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:45:13,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:45:13,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 03:45:13,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199405151] [2025-03-17 03:45:13,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:45:13,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 03:45:13,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:45:13,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 03:45:13,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-17 03:45:13,758 INFO L87 Difference]: Start difference. First operand 108 states and 157 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-17 03:45:14,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:45:14,205 INFO L93 Difference]: Finished difference Result 311 states and 446 transitions. [2025-03-17 03:45:14,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 03:45:14,205 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2025-03-17 03:45:14,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:45:14,208 INFO L225 Difference]: With dead ends: 311 [2025-03-17 03:45:14,208 INFO L226 Difference]: Without dead ends: 204 [2025-03-17 03:45:14,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2025-03-17 03:45:14,210 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 150 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 03:45:14,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 435 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 03:45:14,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2025-03-17 03:45:14,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 172. [2025-03-17 03:45:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 135 states have (on average 1.385185185185185) internal successors, (187), 137 states have internal predecessors, (187), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-17 03:45:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 251 transitions. [2025-03-17 03:45:14,241 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 251 transitions. Word has length 94 [2025-03-17 03:45:14,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:45:14,241 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 251 transitions. [2025-03-17 03:45:14,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-17 03:45:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 251 transitions. [2025-03-17 03:45:14,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-17 03:45:14,244 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:45:14,244 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:14,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 03:45:14,245 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:45:14,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:45:14,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1127626248, now seen corresponding path program 1 times [2025-03-17 03:45:14,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:45:14,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136705957] [2025-03-17 03:45:14,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:14,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:45:14,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-17 03:45:14,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-17 03:45:14,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:14,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:45:14,487 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 03:45:14,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:45:14,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136705957] [2025-03-17 03:45:14,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136705957] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:45:14,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:45:14,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 03:45:14,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368618106] [2025-03-17 03:45:14,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:45:14,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 03:45:14,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:45:14,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 03:45:14,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 03:45:14,494 INFO L87 Difference]: Start difference. First operand 172 states and 251 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-17 03:45:14,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:45:14,626 INFO L93 Difference]: Finished difference Result 328 states and 478 transitions. [2025-03-17 03:45:14,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 03:45:14,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2025-03-17 03:45:14,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:45:14,629 INFO L225 Difference]: With dead ends: 328 [2025-03-17 03:45:14,629 INFO L226 Difference]: Without dead ends: 164 [2025-03-17 03:45:14,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-17 03:45:14,631 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 61 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 03:45:14,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 271 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 03:45:14,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2025-03-17 03:45:14,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2025-03-17 03:45:14,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 125 states have (on average 1.36) internal successors, (170), 127 states have internal predecessors, (170), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-17 03:45:14,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 234 transitions. [2025-03-17 03:45:14,658 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 234 transitions. Word has length 94 [2025-03-17 03:45:14,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:45:14,659 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 234 transitions. [2025-03-17 03:45:14,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-17 03:45:14,659 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 234 transitions. [2025-03-17 03:45:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-03-17 03:45:14,659 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:45:14,660 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:14,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 03:45:14,663 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:45:14,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:45:14,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2018146369, now seen corresponding path program 1 times [2025-03-17 03:45:14,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:45:14,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555016139] [2025-03-17 03:45:14,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:14,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:45:14,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-17 03:45:14,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-17 03:45:14,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:14,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:45:17,039 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 03:45:17,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:45:17,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555016139] [2025-03-17 03:45:17,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555016139] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:45:17,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:45:17,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 03:45:17,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237941672] [2025-03-17 03:45:17,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:45:17,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 03:45:17,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:45:17,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 03:45:17,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-03-17 03:45:17,042 INFO L87 Difference]: Start difference. First operand 162 states and 234 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:19,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:45:19,744 INFO L93 Difference]: Finished difference Result 312 states and 424 transitions. [2025-03-17 03:45:19,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 03:45:19,744 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2025-03-17 03:45:19,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:45:19,747 INFO L225 Difference]: With dead ends: 312 [2025-03-17 03:45:19,747 INFO L226 Difference]: Without dead ends: 310 [2025-03-17 03:45:19,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2025-03-17 03:45:19,748 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 71 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-17 03:45:19,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 411 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-17 03:45:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2025-03-17 03:45:19,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 257. [2025-03-17 03:45:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 207 states have (on average 1.328502415458937) internal successors, (275), 212 states have internal predecessors, (275), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 37 states have call predecessors, (42), 42 states have call successors, (42) [2025-03-17 03:45:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 359 transitions. [2025-03-17 03:45:19,773 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 359 transitions. Word has length 95 [2025-03-17 03:45:19,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:45:19,774 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 359 transitions. [2025-03-17 03:45:19,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 359 transitions. [2025-03-17 03:45:19,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-03-17 03:45:19,775 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:45:19,775 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:19,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 03:45:19,775 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:45:19,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:45:19,776 INFO L85 PathProgramCache]: Analyzing trace with hash -407265603, now seen corresponding path program 1 times [2025-03-17 03:45:19,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:45:19,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642744578] [2025-03-17 03:45:19,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:19,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:45:19,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-17 03:45:19,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-17 03:45:19,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:19,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:45:20,880 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 03:45:20,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:45:20,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642744578] [2025-03-17 03:45:20,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642744578] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:45:20,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:45:20,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 03:45:20,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043949667] [2025-03-17 03:45:20,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:45:20,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 03:45:20,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:45:20,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 03:45:20,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 03:45:20,882 INFO L87 Difference]: Start difference. First operand 257 states and 359 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:21,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:45:21,362 INFO L93 Difference]: Finished difference Result 467 states and 648 transitions. [2025-03-17 03:45:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 03:45:21,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2025-03-17 03:45:21,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:45:21,365 INFO L225 Difference]: With dead ends: 467 [2025-03-17 03:45:21,365 INFO L226 Difference]: Without dead ends: 295 [2025-03-17 03:45:21,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-17 03:45:21,366 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 47 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 03:45:21,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 424 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 03:45:21,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2025-03-17 03:45:21,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 247. [2025-03-17 03:45:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 197 states have (on average 1.3147208121827412) internal successors, (259), 202 states have internal predecessors, (259), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 37 states have call predecessors, (42), 42 states have call successors, (42) [2025-03-17 03:45:21,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 343 transitions. [2025-03-17 03:45:21,393 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 343 transitions. Word has length 95 [2025-03-17 03:45:21,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:45:21,393 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 343 transitions. [2025-03-17 03:45:21,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:21,393 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 343 transitions. [2025-03-17 03:45:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-03-17 03:45:21,394 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:45:21,394 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:21,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 03:45:21,394 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:45:21,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:45:21,395 INFO L85 PathProgramCache]: Analyzing trace with hash -700668610, now seen corresponding path program 1 times [2025-03-17 03:45:21,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:45:21,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499620657] [2025-03-17 03:45:21,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:21,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:45:21,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-17 03:45:21,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-17 03:45:21,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:21,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:45:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-17 03:45:22,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 03:45:22,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499620657] [2025-03-17 03:45:22,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499620657] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 03:45:22,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 03:45:22,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 03:45:22,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403888875] [2025-03-17 03:45:22,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 03:45:22,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 03:45:22,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 03:45:22,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 03:45:22,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-17 03:45:22,996 INFO L87 Difference]: Start difference. First operand 247 states and 343 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:27,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 03:45:27,820 INFO L93 Difference]: Finished difference Result 420 states and 579 transitions. [2025-03-17 03:45:27,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 03:45:27,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2025-03-17 03:45:27,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 03:45:27,823 INFO L225 Difference]: With dead ends: 420 [2025-03-17 03:45:27,823 INFO L226 Difference]: Without dead ends: 258 [2025-03-17 03:45:27,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2025-03-17 03:45:27,824 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 64 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 03:45:27,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 394 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 03:45:27,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2025-03-17 03:45:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 247. [2025-03-17 03:45:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 197 states have (on average 1.3096446700507614) internal successors, (258), 202 states have internal predecessors, (258), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 37 states have call predecessors, (42), 42 states have call successors, (42) [2025-03-17 03:45:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 342 transitions. [2025-03-17 03:45:27,842 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 342 transitions. Word has length 95 [2025-03-17 03:45:27,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 03:45:27,843 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 342 transitions. [2025-03-17 03:45:27,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-17 03:45:27,843 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 342 transitions. [2025-03-17 03:45:27,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-17 03:45:27,844 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:45:27,845 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:27,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 03:45:27,845 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:45:27,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:45:27,845 INFO L85 PathProgramCache]: Analyzing trace with hash -426072604, now seen corresponding path program 1 times [2025-03-17 03:45:27,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 03:45:27,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476668343] [2025-03-17 03:45:27,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:27,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 03:45:27,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-17 03:45:27,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-17 03:45:27,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:27,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 03:45:27,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223629506] [2025-03-17 03:45:27,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:27,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 03:45:27,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 03:45:27,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 03:45:27,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 03:45:27,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-17 03:45:27,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-17 03:45:27,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:27,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 03:45:27,953 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 03:45:27,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-17 03:45:28,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-17 03:45:28,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:28,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 03:45:28,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 03:45:28,055 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 03:45:28,056 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-17 03:45:28,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 03:45:28,258 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,SelfDestructingSolverStorable9 [2025-03-17 03:45:28,261 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:28,310 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 03:45:28,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:45:28 BoogieIcfgContainer [2025-03-17 03:45:28,314 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 03:45:28,314 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 03:45:28,314 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 03:45:28,315 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 03:45:28,315 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:44:57" (3/4) ... [2025-03-17 03:45:28,316 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 03:45:28,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 03:45:28,317 INFO L158 Benchmark]: Toolchain (without parser) took 31453.72ms. Allocated memory was 201.3MB in the beginning and 721.4MB in the end (delta: 520.1MB). Free memory was 155.6MB in the beginning and 559.4MB in the end (delta: -403.8MB). Peak memory consumption was 118.4MB. Max. memory is 16.1GB. [2025-03-17 03:45:28,318 INFO L158 Benchmark]: CDTParser took 1.64ms. Allocated memory is still 201.3MB. Free memory is still 120.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 03:45:28,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.31ms. Allocated memory is still 201.3MB. Free memory was 155.6MB in the beginning and 143.1MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 03:45:28,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.83ms. Allocated memory is still 201.3MB. Free memory was 143.1MB in the beginning and 141.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 03:45:28,318 INFO L158 Benchmark]: Boogie Preprocessor took 52.98ms. Allocated memory is still 201.3MB. Free memory was 141.4MB in the beginning and 139.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 03:45:28,318 INFO L158 Benchmark]: IcfgBuilder took 385.19ms. Allocated memory is still 201.3MB. Free memory was 139.7MB in the beginning and 122.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 03:45:28,318 INFO L158 Benchmark]: TraceAbstraction took 30710.32ms. Allocated memory was 201.3MB in the beginning and 721.4MB in the end (delta: 520.1MB). Free memory was 121.8MB in the beginning and 559.6MB in the end (delta: -437.7MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2025-03-17 03:45:28,318 INFO L158 Benchmark]: Witness Printer took 2.50ms. Allocated memory is still 721.4MB. Free memory was 559.6MB in the beginning and 559.4MB in the end (delta: 150.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 03:45:28,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.64ms. Allocated memory is still 201.3MB. Free memory is still 120.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.31ms. Allocated memory is still 201.3MB. Free memory was 155.6MB in the beginning and 143.1MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.83ms. Allocated memory is still 201.3MB. Free memory was 143.1MB in the beginning and 141.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.98ms. Allocated memory is still 201.3MB. Free memory was 141.4MB in the beginning and 139.7MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 385.19ms. Allocated memory is still 201.3MB. Free memory was 139.7MB in the beginning and 122.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 30710.32ms. Allocated memory was 201.3MB in the beginning and 721.4MB in the end (delta: 520.1MB). Free memory was 121.8MB in the beginning and 559.6MB in the end (delta: -437.7MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. * Witness Printer took 2.50ms. Allocated memory is still 721.4MB. Free memory was 559.6MB in the beginning and 559.4MB in the end (delta: 150.2kB). Peak memory consumption was 8.4MB. 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 83, overapproximation of someBinaryFLOATComparisonOperation at line 93. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1; [L23] unsigned char var_1_2 = 0; [L24] unsigned long int var_1_3 = 3164414017; [L25] unsigned long int var_1_4 = 128; [L26] signed char var_1_5 = -128; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 50; [L29] float var_1_8 = 5.1; [L30] float var_1_9 = 63.75; [L31] signed char var_1_10 = 100; [L32] signed long int var_1_12 = 5; [L33] signed char last_1_var_1_10 = 100; [L97] isInitial = 1 [L98] FCALL initially() [L99] COND TRUE 1 [L100] CALL updateLastVariables() [L90] last_1_var_1_10 = var_1_10 [L100] RET updateLastVariables() [L101] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L70] var_1_3 = __VERIFIER_nondet_ulong() [L71] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L71] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L72] CALL assume_abort_if_not(var_1_3 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L72] RET assume_abort_if_not(var_1_3 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L73] var_1_4 = __VERIFIER_nondet_ulong() [L74] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L74] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L75] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L75] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L76] var_1_6 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_6 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L77] RET assume_abort_if_not(var_1_6 >= -126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L78] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L78] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L79] var_1_7 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10, var_1_9=255/4] [L80] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10, var_1_9=255/4] [L81] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10, var_1_9=255/4] [L81] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10, var_1_9=255/4] [L82] var_1_9 = __VERIFIER_nondet_float() [L83] 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, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L83] 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, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L84] var_1_12 = __VERIFIER_nondet_long() [L85] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L85] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L86] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L86] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L87] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L87] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L101] RET updateVariables() [L102] CALL step() [L37] COND TRUE \read(var_1_2) [L38] var_1_1 = ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L40] signed long int stepLocal_1 = -8; [L41] unsigned long int stepLocal_0 = var_1_1; VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=21474836355, stepLocal_1=-8, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-128, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L42] COND FALSE !(stepLocal_1 < var_1_4) [L49] var_1_5 = -2 VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=21474836355, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L51] unsigned long int stepLocal_3 = var_1_1; VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=21474836355, stepLocal_3=21474836355, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L52] EXPR var_1_4 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=21474836355, stepLocal_3=21474836355, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L52] unsigned long int stepLocal_2 = var_1_4 >> var_1_3; [L53] COND TRUE var_1_6 >= stepLocal_2 VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=21474836355, stepLocal_3=21474836355, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=51/10] [L54] COND TRUE var_1_6 != stepLocal_3 [L55] var_1_8 = var_1_9 VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=21474836355, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=2, var_1_9=2] [L58] COND FALSE !((var_1_1 + (var_1_6 / var_1_12)) < var_1_1) VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=21474836355, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=2, var_1_9=2] [L102] RET step() [L103] CALL, EXPR property() [L93] EXPR ((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=2, var_1_9=2] [L93] EXPR var_1_4 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=2, var_1_9=2] [L93] EXPR ((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=2, var_1_9=2] [L93-L94] return (((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1)) && (((var_1_1 + (var_1_6 / var_1_12)) < var_1_1) ? ((var_1_7 >= last_1_var_1_10) ? (var_1_10 == ((signed char) -32)) : (var_1_10 == ((signed char) var_1_7))) : 1) ; [L103] RET, EXPR property() [L103] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=2, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=21474836355, var_1_2=1, var_1_3=17179869059, var_1_4=-4294967296, var_1_5=-2, var_1_6=-126, var_1_7=99, var_1_8=2, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 91 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.6s, OverallIterations: 10, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 721 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 721 mSDsluCounter, 3339 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2642 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1864 IncrementalHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 697 mSDtfsCounter, 1864 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=7, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 314 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 19.2s InterpolantComputationTime, 1039 NumberOfCodeBlocks, 1039 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 838 ConstructedInterpolants, 0 QuantifiedInterpolants, 9815 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 3276/3276 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-17 03:45:28,409 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_loopvsstraightlinecode_25-while_file-87.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 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 03:45:30,360 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 03:45:30,454 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-17 03:45:30,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 03:45:30,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 03:45:30,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 03:45:30,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 03:45:30,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 03:45:30,493 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 03:45:30,493 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 03:45:30,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 03:45:30,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 03:45:30,493 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 03:45:30,493 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 03:45:30,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 03:45:30,494 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 03:45:30,497 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 03:45:30,498 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 03:45:30,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 03:45:30,498 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 03:45:30,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 03:45:30,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 03:45:30,499 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 03:45:30,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 03:45:30,499 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 -> 57aa769afed4a061f728787b55a05b2a082848f9dc6ce06d34092eb1dbdd7a2a [2025-03-17 03:45:30,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 03:45:30,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 03:45:30,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 03:45:30,797 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 03:45:30,797 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 03:45:30,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i [2025-03-17 03:45:32,047 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff1f6cb93/152423d3a3a446d5bf5221913a218c9b/FLAG7fb7ec020 [2025-03-17 03:45:32,263 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 03:45:32,263 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-87.i [2025-03-17 03:45:32,270 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff1f6cb93/152423d3a3a446d5bf5221913a218c9b/FLAG7fb7ec020 [2025-03-17 03:45:32,284 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff1f6cb93/152423d3a3a446d5bf5221913a218c9b [2025-03-17 03:45:32,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 03:45:32,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 03:45:32,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 03:45:32,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 03:45:32,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 03:45:32,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31039a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32, skipping insertion in model container [2025-03-17 03:45:32,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,307 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 03:45:32,411 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_loopvsstraightlinecode_25-while_file-87.i[915,928] [2025-03-17 03:45:32,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 03:45:32,472 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 03:45:32,481 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_loopvsstraightlinecode_25-while_file-87.i[915,928] [2025-03-17 03:45:32,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 03:45:32,523 INFO L204 MainTranslator]: Completed translation [2025-03-17 03:45:32,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32 WrapperNode [2025-03-17 03:45:32,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 03:45:32,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 03:45:32,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 03:45:32,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 03:45:32,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,554 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97 [2025-03-17 03:45:32,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 03:45:32,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 03:45:32,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 03:45:32,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 03:45:32,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,576 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 03:45:32,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,583 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 03:45:32,588 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 03:45:32,589 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 03:45:32,589 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 03:45:32,590 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (1/1) ... [2025-03-17 03:45:32,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 03:45:32,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 03:45:32,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 03:45:32,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 03:45:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 03:45:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 03:45:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 03:45:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 03:45:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 03:45:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 03:45:32,702 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 03:45:32,704 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 03:45:33,021 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-03-17 03:45:33,021 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 03:45:33,030 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 03:45:33,031 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 03:45:33,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:45:33 BoogieIcfgContainer [2025-03-17 03:45:33,031 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 03:45:33,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 03:45:33,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 03:45:33,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 03:45:33,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:45:32" (1/3) ... [2025-03-17 03:45:33,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b86b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:45:33, skipping insertion in model container [2025-03-17 03:45:33,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:45:32" (2/3) ... [2025-03-17 03:45:33,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b86b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:45:33, skipping insertion in model container [2025-03-17 03:45:33,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:45:33" (3/3) ... [2025-03-17 03:45:33,040 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-87.i [2025-03-17 03:45:33,053 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 03:45:33,054 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-87.i that has 2 procedures, 43 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 03:45:33,091 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 03:45:33,100 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;@340340d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 03:45:33,100 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 03:45:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-17 03:45:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-03-17 03:45:33,110 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 03:45:33,111 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 03:45:33,111 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 03:45:33,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 03:45:33,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1521085388, now seen corresponding path program 1 times [2025-03-17 03:45:33,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 03:45:33,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426457409] [2025-03-17 03:45:33,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:33,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-17 03:45:33,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-17 03:45:33,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-17 03:45:33,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-17 03:45:33,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-17 03:45:33,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-17 03:45:33,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:33,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:45:33,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 03:45:33,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 03:45:33,841 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 186 proven. 54 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-03-17 03:45:33,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 03:45:33,916 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 03:45:33,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426457409] [2025-03-17 03:45:33,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426457409] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 03:45:33,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1093215786] [2025-03-17 03:45:33,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 03:45:33,917 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-03-17 03:45:33,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2025-03-17 03:45:33,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-03-17 03:45:33,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2025-03-17 03:45:33,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-17 03:45:34,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-17 03:45:34,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 03:45:34,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 03:45:34,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-17 03:45:34,293 INFO L279 TraceCheckSpWp]: Computing forward predicates...