./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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_codestructure_steplocals_file-20.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 80202e6356a531b702791c86039bd8c79ef8d6c3a99bbf935fc4214c36698253 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 18:58:59,421 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 18:58:59,469 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 18:58:59,473 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 18:58:59,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 18:58:59,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 18:58:59,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 18:58:59,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 18:58:59,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 18:58:59,493 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 18:58:59,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 18:58:59,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 18:58:59,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 18:58:59,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 18:58:59,494 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 18:58:59,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 18:58:59,494 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 18:58:59,495 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 18:58:59,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 18:58:59,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 18:58:59,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 18:58:59,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 18:58:59,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 18:58:59,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 18:58:59,496 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 18:58:59,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 18:58:59,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 18:58:59,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 18:58:59,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 18:58:59,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 18:58:59,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 18:58:59,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 18:58:59,497 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 -> 80202e6356a531b702791c86039bd8c79ef8d6c3a99bbf935fc4214c36698253 [2025-03-03 18:58:59,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 18:58:59,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 18:58:59,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 18:58:59,722 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 18:58:59,722 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 18:58:59,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-20.i [2025-03-03 18:59:00,850 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a184c3ff/ba9e6373a0fd44ffaca248046965672f/FLAGacb7a3125 [2025-03-03 18:59:01,118 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 18:59:01,119 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-20.i [2025-03-03 18:59:01,128 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a184c3ff/ba9e6373a0fd44ffaca248046965672f/FLAGacb7a3125 [2025-03-03 18:59:01,143 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a184c3ff/ba9e6373a0fd44ffaca248046965672f [2025-03-03 18:59:01,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 18:59:01,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 18:59:01,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 18:59:01,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 18:59:01,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 18:59:01,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5540f65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01, skipping insertion in model container [2025-03-03 18:59:01,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,172 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 18:59:01,271 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_codestructure_steplocals_file-20.i[917,930] [2025-03-03 18:59:01,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 18:59:01,317 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 18:59:01,323 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_codestructure_steplocals_file-20.i[917,930] [2025-03-03 18:59:01,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 18:59:01,358 INFO L204 MainTranslator]: Completed translation [2025-03-03 18:59:01,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01 WrapperNode [2025-03-03 18:59:01,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 18:59:01,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 18:59:01,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 18:59:01,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 18:59:01,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,393 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153 [2025-03-03 18:59:01,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 18:59:01,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 18:59:01,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 18:59:01,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 18:59:01,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,408 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,425 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]. [2025-03-03 18:59:01,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,438 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 18:59:01,450 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 18:59:01,450 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 18:59:01,450 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 18:59:01,450 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (1/1) ... [2025-03-03 18:59:01,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 18:59:01,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 18:59:01,473 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) [2025-03-03 18:59:01,481 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 [2025-03-03 18:59:01,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 18:59:01,490 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-03 18:59:01,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-03 18:59:01,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 18:59:01,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 18:59:01,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 18:59:01,551 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 18:59:01,553 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 18:59:01,838 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L118: havoc property_#t~ite17#1;havoc property_#t~bitwise16#1;havoc property_#t~short18#1; [2025-03-03 18:59:01,866 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-03-03 18:59:01,867 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 18:59:01,881 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 18:59:01,881 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 18:59:01,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 06:59:01 BoogieIcfgContainer [2025-03-03 18:59:01,882 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 18:59:01,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 18:59:01,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 18:59:01,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 18:59:01,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 06:59:01" (1/3) ... [2025-03-03 18:59:01,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aafcc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:59:01, skipping insertion in model container [2025-03-03 18:59:01,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:01" (2/3) ... [2025-03-03 18:59:01,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aafcc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:59:01, skipping insertion in model container [2025-03-03 18:59:01,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 06:59:01" (3/3) ... [2025-03-03 18:59:01,890 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-20.i [2025-03-03 18:59:01,901 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 18:59:01,902 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-20.i that has 2 procedures, 68 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 18:59:01,948 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 18:59:01,957 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;@1cad6eff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 18:59:01,957 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 18:59:01,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 47 states have internal predecessors, (62), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-03 18:59:01,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-03-03 18:59:01,973 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 18:59:01,973 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 18:59:01,973 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 18:59:01,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 18:59:01,978 INFO L85 PathProgramCache]: Analyzing trace with hash 154140861, now seen corresponding path program 1 times [2025-03-03 18:59:01,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 18:59:01,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158326992] [2025-03-03 18:59:01,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 18:59:01,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 18:59:02,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-03-03 18:59:02,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-03-03 18:59:02,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 18:59:02,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 18:59:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-03-03 18:59:02,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 18:59:02,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158326992] [2025-03-03 18:59:02,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158326992] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 18:59:02,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019525145] [2025-03-03 18:59:02,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 18:59:02,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 18:59:02,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 18:59:02,244 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) [2025-03-03 18:59:02,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 18:59:02,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-03-03 18:59:02,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-03-03 18:59:02,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 18:59:02,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 18:59:02,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 18:59:02,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 18:59:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-03-03 18:59:02,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 18:59:02,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019525145] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 18:59:02,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 18:59:02,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-03 18:59:02,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672067917] [2025-03-03 18:59:02,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 18:59:02,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 18:59:02,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 18:59:02,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 18:59:02,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 18:59:02,441 INFO L87 Difference]: Start difference. First operand has 68 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 47 states have internal predecessors, (62), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 18:59:02,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 18:59:02,459 INFO L93 Difference]: Finished difference Result 130 states and 214 transitions. [2025-03-03 18:59:02,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 18:59:02,462 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 126 [2025-03-03 18:59:02,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 18:59:02,466 INFO L225 Difference]: With dead ends: 130 [2025-03-03 18:59:02,466 INFO L226 Difference]: Without dead ends: 65 [2025-03-03 18:59:02,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 18:59:02,471 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 18:59:02,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 18:59:02,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2025-03-03 18:59:02,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2025-03-03 18:59:02,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 44 states have internal predecessors, (57), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-03 18:59:02,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 95 transitions. [2025-03-03 18:59:02,495 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 95 transitions. Word has length 126 [2025-03-03 18:59:02,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 18:59:02,495 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 95 transitions. [2025-03-03 18:59:02,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 18:59:02,496 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 95 transitions. [2025-03-03 18:59:02,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-03-03 18:59:02,498 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 18:59:02,499 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 18:59:02,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 18:59:02,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-03 18:59:02,703 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 18:59:02,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 18:59:02,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1085204416, now seen corresponding path program 1 times [2025-03-03 18:59:02,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 18:59:02,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793136151] [2025-03-03 18:59:02,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 18:59:02,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 18:59:02,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-03-03 18:59:02,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-03-03 18:59:02,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 18:59:02,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-03 18:59:02,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966364724] [2025-03-03 18:59:02,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 18:59:02,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 18:59:02,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 18:59:02,862 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 18:59:02,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 18:59:02,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-03-03 18:59:02,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-03-03 18:59:02,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 18:59:02,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 18:59:02,956 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 18:59:02,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-03-03 18:59:03,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-03-03 18:59:03,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 18:59:03,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 18:59:03,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 18:59:03,047 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 18:59:03,048 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 18:59:03,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-03 18:59:03,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-03 18:59:03,253 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-03 18:59:03,319 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 18:59:03,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 06:59:03 BoogieIcfgContainer [2025-03-03 18:59:03,323 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 18:59:03,323 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 18:59:03,323 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 18:59:03,323 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 18:59:03,324 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 06:59:01" (3/4) ... [2025-03-03 18:59:03,325 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 18:59:03,326 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 18:59:03,326 INFO L158 Benchmark]: Toolchain (without parser) took 2180.25ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 53.7MB in the end (delta: 59.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2025-03-03 18:59:03,326 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 18:59:03,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.42ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 98.9MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 18:59:03,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.52ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 95.5MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 18:59:03,327 INFO L158 Benchmark]: Boogie Preprocessor took 55.47ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 91.0MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 18:59:03,327 INFO L158 Benchmark]: IcfgBuilder took 432.09ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 68.9MB in the end (delta: 22.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 18:59:03,328 INFO L158 Benchmark]: TraceAbstraction took 1439.40ms. Allocated memory is still 142.6MB. Free memory was 68.4MB in the beginning and 53.7MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2025-03-03 18:59:03,328 INFO L158 Benchmark]: Witness Printer took 2.79ms. Allocated memory is still 142.6MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 18:59:03,330 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.42ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 98.9MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.52ms. Allocated memory is still 142.6MB. Free memory was 98.9MB in the beginning and 95.5MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.47ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 91.0MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 432.09ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 68.9MB in the end (delta: 22.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1439.40ms. Allocated memory is still 142.6MB. Free memory was 68.4MB in the beginning and 53.7MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 2.79ms. Allocated memory is still 142.6MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 113, overapproximation of someBinaryFLOATComparisonOperation at line 109, overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryFLOATComparisonOperation at line 75, overapproximation of someBinaryFLOATComparisonOperation at line 118, overapproximation of someBinaryArithmeticFLOAToperation at line 61, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 5; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 128; [L25] unsigned char var_1_4 = 2; [L26] unsigned char var_1_5 = 2; [L27] unsigned char var_1_6 = 32; [L28] signed long int var_1_7 = 128; [L29] unsigned short int var_1_8 = 100; [L30] float var_1_9 = 255.75; [L31] signed char var_1_10 = 64; [L32] signed char var_1_11 = 32; [L33] signed char var_1_12 = 4; [L34] float var_1_13 = 0.0; [L35] float var_1_14 = 7.25; [L36] float var_1_15 = 8.125; [L37] float var_1_16 = 24.5; [L38] signed short int var_1_17 = -256; [L39] double var_1_18 = 31.5; VAL [isInitial=0, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L122] isInitial = 1 [L123] FCALL initially() [L124] COND TRUE 1 [L125] FCALL updateLastVariables() [L126] CALL updateVariables() [L84] var_1_2 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L85] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L86] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L86] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L87] var_1_3 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_3 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L88] RET assume_abort_if_not(var_1_3 >= 127) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L89] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L89] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L90] var_1_4 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L91] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L92] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L92] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L93] var_1_5 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L94] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L95] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L95] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L96] var_1_7 = __VERIFIER_nondet_long() [L97] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L97] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L98] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L98] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L99] var_1_10 = __VERIFIER_nondet_char() [L100] CALL assume_abort_if_not(var_1_10 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L100] RET assume_abort_if_not(var_1_10 >= 63) VAL [isInitial=1, var_1_10=79, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L101] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L101] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, var_1_10=79, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L102] var_1_11 = __VERIFIER_nondet_char() [L103] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L103] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L104] CALL assume_abort_if_not(var_1_11 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L104] RET assume_abort_if_not(var_1_11 <= 64) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L105] var_1_12 = __VERIFIER_nondet_char() [L106] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L106] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L107] CALL assume_abort_if_not(var_1_12 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L107] RET assume_abort_if_not(var_1_12 <= 63) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L108] var_1_13 = __VERIFIER_nondet_float() [L109] CALL assume_abort_if_not((var_1_13 >= 4611686.018427382800e+12F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L109] RET assume_abort_if_not((var_1_13 >= 4611686.018427382800e+12F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L110] var_1_14 = __VERIFIER_nondet_float() [L111] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L111] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L112] var_1_16 = __VERIFIER_nondet_float() [L113] CALL assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L113] RET assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L126] RET updateVariables() [L127] CALL step() [L43] COND TRUE \read(var_1_2) [L44] var_1_1 = (var_1_3 - var_1_4) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_17=-256, var_1_18=63/2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L48] signed long int stepLocal_0 = var_1_1 - (var_1_4 + var_1_7); VAL [isInitial=1, stepLocal_0=63, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_17=-256, var_1_18=63/2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=32, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L49] COND TRUE (64 + (var_1_5 / var_1_3)) != stepLocal_0 [L50] var_1_6 = var_1_4 VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_17=-256, var_1_18=63/2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=801, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L54] signed long int stepLocal_1 = var_1_3 - var_1_5; VAL [isInitial=1, stepLocal_1=129, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_17=-256, var_1_18=63/2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=801, var_1_7=0, var_1_8=100, var_1_9=1023/4] [L55] COND TRUE (var_1_6 + var_1_1) >= stepLocal_1 [L56] var_1_8 = ((((var_1_1) > (var_1_3)) ? (var_1_1) : (var_1_3))) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_17=-256, var_1_18=63/2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=801, var_1_7=0, var_1_8=129, var_1_9=1023/4] [L60] COND TRUE ((var_1_10 - var_1_11) - (16 + var_1_12)) != var_1_5 [L61] var_1_9 = (64.8f - (var_1_13 - var_1_14)) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_15=65/8, var_1_17=-256, var_1_18=63/2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=801, var_1_7=0, var_1_8=129] [L65] var_1_15 = (var_1_14 + var_1_16) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_17=-256, var_1_18=63/2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=801, var_1_7=0, var_1_8=129] [L66] COND TRUE \read(var_1_2) [L67] var_1_17 = (var_1_3 + var_1_12) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_17=129, var_1_18=63/2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=801, var_1_7=0, var_1_8=129] [L75] COND FALSE !((var_1_2 || (var_1_16 > var_1_13)) && (var_1_3 < var_1_8)) [L80] var_1_18 = var_1_16 VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_16=2, var_1_17=129, var_1_18=2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=801, var_1_7=0, var_1_8=129] [L127] RET step() [L128] CALL, EXPR property() [L118] EXPR ((((((var_1_2 ? (var_1_1 == ((unsigned char) (var_1_3 - var_1_4))) : (var_1_1 == ((unsigned char) (var_1_4 + var_1_5)))) && (((64 + (var_1_5 / var_1_3)) != (var_1_1 - (var_1_4 + var_1_7))) ? (var_1_6 == ((unsigned char) var_1_4)) : (var_1_6 == ((unsigned char) 128)))) && (((var_1_6 + var_1_1) >= (var_1_3 - var_1_5)) ? (var_1_8 == ((unsigned short int) ((((var_1_1) > (var_1_3)) ? (var_1_1) : (var_1_3))))) : (var_1_8 == ((unsigned short int) var_1_1)))) && ((((var_1_10 - var_1_11) - (16 + var_1_12)) != var_1_5) ? (var_1_9 == ((float) (64.8f - (var_1_13 - var_1_14)))) : (var_1_9 == ((float) var_1_13)))) && (var_1_15 == ((float) (var_1_14 + var_1_16)))) && (var_1_2 ? (var_1_17 == ((signed short int) (var_1_3 + var_1_12))) : ((var_1_14 == (((((99.8f) < (var_1_16)) ? (99.8f) : (var_1_16))) / ((((255.6f) > (var_1_13)) ? (255.6f) : (var_1_13))))) ? (var_1_17 == ((signed short int) var_1_4)) : (var_1_17 == ((signed short int) (var_1_5 - var_1_3)))))) && (((var_1_2 || (var_1_16 > var_1_13)) && (var_1_3 < var_1_8)) ? (((var_1_11 << var_1_12) > var_1_5) ? (var_1_18 == ((double) var_1_13)) : 1) : (var_1_18 == ((double) var_1_16))) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_16=2, var_1_17=129, var_1_18=2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=801, var_1_7=0, var_1_8=129] [L118-L119] return ((((((var_1_2 ? (var_1_1 == ((unsigned char) (var_1_3 - var_1_4))) : (var_1_1 == ((unsigned char) (var_1_4 + var_1_5)))) && (((64 + (var_1_5 / var_1_3)) != (var_1_1 - (var_1_4 + var_1_7))) ? (var_1_6 == ((unsigned char) var_1_4)) : (var_1_6 == ((unsigned char) 128)))) && (((var_1_6 + var_1_1) >= (var_1_3 - var_1_5)) ? (var_1_8 == ((unsigned short int) ((((var_1_1) > (var_1_3)) ? (var_1_1) : (var_1_3))))) : (var_1_8 == ((unsigned short int) var_1_1)))) && ((((var_1_10 - var_1_11) - (16 + var_1_12)) != var_1_5) ? (var_1_9 == ((float) (64.8f - (var_1_13 - var_1_14)))) : (var_1_9 == ((float) var_1_13)))) && (var_1_15 == ((float) (var_1_14 + var_1_16)))) && (var_1_2 ? (var_1_17 == ((signed short int) (var_1_3 + var_1_12))) : ((var_1_14 == (((((99.8f) < (var_1_16)) ? (99.8f) : (var_1_16))) / ((((255.6f) > (var_1_13)) ? (255.6f) : (var_1_13))))) ? (var_1_17 == ((signed short int) var_1_4)) : (var_1_17 == ((signed short int) (var_1_5 - var_1_3)))))) && (((var_1_2 || (var_1_16 > var_1_13)) && (var_1_3 < var_1_8)) ? (((var_1_11 << var_1_12) > var_1_5) ? (var_1_18 == ((double) var_1_13)) : 1) : (var_1_18 == ((double) var_1_16))) ; [L128] RET, EXPR property() [L128] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_16=2, var_1_17=129, var_1_18=2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=801, var_1_7=0, var_1_8=129] [L19] reach_error() VAL [isInitial=1, var_1_10=79, var_1_11=64, var_1_12=0, var_1_16=2, var_1_17=129, var_1_18=2, var_1_1=96, var_1_2=1, var_1_3=1153, var_1_4=801, var_1_5=256, var_1_6=801, var_1_7=0, var_1_8=129] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 93 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 504 NumberOfCodeBlocks, 504 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 250 ConstructedInterpolants, 0 QuantifiedInterpolants, 250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 286 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1332/1368 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 [2025-03-03 18:59:03,345 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_codestructure_steplocals_file-20.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 80202e6356a531b702791c86039bd8c79ef8d6c3a99bbf935fc4214c36698253 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 18:59:05,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 18:59:05,177 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 18:59:05,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 18:59:05,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 18:59:05,219 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 18:59:05,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 18:59:05,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 18:59:05,220 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 18:59:05,221 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 18:59:05,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 18:59:05,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 18:59:05,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 18:59:05,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 18:59:05,222 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 18:59:05,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 18:59:05,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 18:59:05,222 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 18:59:05,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 18:59:05,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 18:59:05,223 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 18:59:05,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 18:59:05,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 18:59:05,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 18:59:05,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 18:59:05,224 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 18:59:05,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 18:59:05,224 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 18:59:05,224 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 18:59:05,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 18:59:05,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 18:59:05,224 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 18:59:05,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 18:59:05,224 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 -> 80202e6356a531b702791c86039bd8c79ef8d6c3a99bbf935fc4214c36698253 [2025-03-03 18:59:05,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 18:59:05,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 18:59:05,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 18:59:05,456 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 18:59:05,456 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 18:59:05,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-20.i [2025-03-03 18:59:06,556 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812ec3072/db3b51231f69480f9f7662131bb0a320/FLAG95a4b3d6f [2025-03-03 18:59:06,765 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 18:59:06,766 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-20.i [2025-03-03 18:59:06,774 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812ec3072/db3b51231f69480f9f7662131bb0a320/FLAG95a4b3d6f [2025-03-03 18:59:06,793 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812ec3072/db3b51231f69480f9f7662131bb0a320 [2025-03-03 18:59:06,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 18:59:06,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 18:59:06,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 18:59:06,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 18:59:06,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 18:59:06,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:59:06" (1/1) ... [2025-03-03 18:59:06,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190fd261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:06, skipping insertion in model container [2025-03-03 18:59:06,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:59:06" (1/1) ... [2025-03-03 18:59:06,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 18:59:06,938 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_codestructure_steplocals_file-20.i[917,930] [2025-03-03 18:59:06,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 18:59:07,009 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 18:59:07,017 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_codestructure_steplocals_file-20.i[917,930] [2025-03-03 18:59:07,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 18:59:07,066 INFO L204 MainTranslator]: Completed translation [2025-03-03 18:59:07,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07 WrapperNode [2025-03-03 18:59:07,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 18:59:07,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 18:59:07,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 18:59:07,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 18:59:07,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,088 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,115 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2025-03-03 18:59:07,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 18:59:07,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 18:59:07,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 18:59:07,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 18:59:07,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,126 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,146 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]. [2025-03-03 18:59:07,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,159 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 18:59:07,173 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 18:59:07,173 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 18:59:07,173 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 18:59:07,174 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (1/1) ... [2025-03-03 18:59:07,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 18:59:07,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 18:59:07,202 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) [2025-03-03 18:59:07,206 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 [2025-03-03 18:59:07,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 18:59:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 18:59:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-03 18:59:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-03 18:59:07,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 18:59:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 18:59:07,297 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 18:59:07,299 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 18:59:14,028 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-03-03 18:59:14,029 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 18:59:14,039 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 18:59:14,039 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 18:59:14,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 06:59:14 BoogieIcfgContainer [2025-03-03 18:59:14,039 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 18:59:14,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 18:59:14,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 18:59:14,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 18:59:14,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 06:59:06" (1/3) ... [2025-03-03 18:59:14,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1754c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:59:14, skipping insertion in model container [2025-03-03 18:59:14,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:59:07" (2/3) ... [2025-03-03 18:59:14,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1754c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:59:14, skipping insertion in model container [2025-03-03 18:59:14,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 06:59:14" (3/3) ... [2025-03-03 18:59:14,047 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-20.i [2025-03-03 18:59:14,058 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 18:59:14,059 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-20.i that has 2 procedures, 59 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 18:59:14,112 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 18:59:14,124 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;@3d37029d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 18:59:14,124 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 18:59:14,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 38 states have internal predecessors, (49), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-03 18:59:14,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-03 18:59:14,141 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 18:59:14,141 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 18:59:14,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 18:59:14,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 18:59:14,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1533362559, now seen corresponding path program 1 times [2025-03-03 18:59:14,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 18:59:14,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786406264] [2025-03-03 18:59:14,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 18:59:14,161 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 [2025-03-03 18:59:14,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 18:59:14,165 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) [2025-03-03 18:59:14,167 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 [2025-03-03 18:59:14,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-03 18:59:14,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-03 18:59:14,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 18:59:14,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 18:59:14,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 18:59:14,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 18:59:14,560 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2025-03-03 18:59:14,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 18:59:14,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 18:59:14,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786406264] [2025-03-03 18:59:14,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786406264] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 18:59:14,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 18:59:14,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 18:59:14,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481193800] [2025-03-03 18:59:14,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 18:59:14,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 18:59:14,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 18:59:14,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 18:59:14,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 18:59:14,585 INFO L87 Difference]: Start difference. First operand has 59 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 38 states have internal predecessors, (49), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 18:59:14,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 18:59:14,609 INFO L93 Difference]: Finished difference Result 112 states and 188 transitions. [2025-03-03 18:59:14,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 18:59:14,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2025-03-03 18:59:14,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 18:59:14,616 INFO L225 Difference]: With dead ends: 112 [2025-03-03 18:59:14,617 INFO L226 Difference]: Without dead ends: 56 [2025-03-03 18:59:14,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 18:59:14,624 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 18:59:14,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 18:59:14,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-03-03 18:59:14,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-03-03 18:59:14,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 35 states have internal predecessors, (44), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-03 18:59:14,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2025-03-03 18:59:14,664 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 82 transitions. Word has length 124 [2025-03-03 18:59:14,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 18:59:14,665 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 82 transitions. [2025-03-03 18:59:14,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 18:59:14,666 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 82 transitions. [2025-03-03 18:59:14,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-03 18:59:14,671 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 18:59:14,672 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 18:59:14,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-03 18:59:14,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 18:59:14,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 18:59:14,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 18:59:14,874 INFO L85 PathProgramCache]: Analyzing trace with hash -932704958, now seen corresponding path program 1 times [2025-03-03 18:59:14,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 18:59:14,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459762065] [2025-03-03 18:59:14,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 18:59:14,875 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 [2025-03-03 18:59:14,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 18:59:14,877 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 18:59:14,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-03 18:59:14,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-03 18:59:15,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-03 18:59:15,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 18:59:15,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 18:59:15,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-03 18:59:15,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 18:59:54,631 WARN L286 SmtUtils]: Spent 7.73s on a formula simplification that was a NOOP. DAG size: 88 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-03 19:00:38,289 WARN L286 SmtUtils]: Spent 15.23s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)