./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 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_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-?-8fc3dc6-m [2025-03-16 23:17:18,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 23:17:18,602 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 23:17:18,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 23:17:18,607 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 23:17:18,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 23:17:18,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 23:17:18,631 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 23:17:18,632 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 23:17:18,632 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 23:17:18,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 23:17:18,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 23:17:18,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 23:17:18,633 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 23:17:18,633 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 23:17:18,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 23:17:18,634 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 23:17:18,634 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 23:17:18,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 23:17:18,635 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 23:17:18,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 23:17:18,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 23:17:18,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 23:17:18,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 23:17:18,635 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 23:17:18,635 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 23:17:18,636 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 23:17:18,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 23:17:18,636 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 23:17:18,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 23:17:18,636 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 23:17:18,636 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 23:17:18,636 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 [2025-03-16 23:17:18,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 23:17:18,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 23:17:18,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 23:17:18,885 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 23:17:18,886 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 23:17:18,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-20.i [2025-03-16 23:17:20,007 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e23d830b1/e87354a788094dc88dec64b2a49dcb40/FLAG0c5f1a9d4 [2025-03-16 23:17:20,242 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 23:17:20,243 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-20.i [2025-03-16 23:17:20,252 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e23d830b1/e87354a788094dc88dec64b2a49dcb40/FLAG0c5f1a9d4 [2025-03-16 23:17:20,586 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e23d830b1/e87354a788094dc88dec64b2a49dcb40 [2025-03-16 23:17:20,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 23:17:20,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 23:17:20,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 23:17:20,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 23:17:20,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 23:17:20,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32182076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20, skipping insertion in model container [2025-03-16 23:17:20,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 23:17:20,719 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] [2025-03-16 23:17:20,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 23:17:20,785 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 23:17:20,795 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] [2025-03-16 23:17:20,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 23:17:20,839 INFO L204 MainTranslator]: Completed translation [2025-03-16 23:17:20,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20 WrapperNode [2025-03-16 23:17:20,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 23:17:20,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 23:17:20,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 23:17:20,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 23:17:20,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,886 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153 [2025-03-16 23:17:20,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 23:17:20,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 23:17:20,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 23:17:20,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 23:17:20,892 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,906 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]. [2025-03-16 23:17:20,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,913 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 23:17:20,918 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 23:17:20,918 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 23:17:20,918 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 23:17:20,919 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (1/1) ... [2025-03-16 23:17:20,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 23:17:20,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 23:17:20,946 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) [2025-03-16 23:17:20,948 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 [2025-03-16 23:17:20,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 23:17:20,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-16 23:17:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-16 23:17:20,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 23:17:20,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 23:17:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 23:17:21,015 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 23:17:21,017 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 23:17:21,250 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L118: havoc property_#t~ite17#1;havoc property_#t~bitwise16#1;havoc property_#t~short18#1; [2025-03-16 23:17:21,277 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2025-03-16 23:17:21,277 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 23:17:21,292 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 23:17:21,292 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 23:17:21,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 11:17:21 BoogieIcfgContainer [2025-03-16 23:17:21,293 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 23:17:21,296 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 23:17:21,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 23:17:21,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 23:17:21,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 11:17:20" (1/3) ... [2025-03-16 23:17:21,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621674d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 11:17:21, skipping insertion in model container [2025-03-16 23:17:21,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:20" (2/3) ... [2025-03-16 23:17:21,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621674d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 11:17:21, skipping insertion in model container [2025-03-16 23:17:21,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 11:17:21" (3/3) ... [2025-03-16 23:17:21,302 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-20.i [2025-03-16 23:17:21,313 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 23:17:21,315 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-20.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 23:17:21,359 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 23:17:21,370 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;@628c7488, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 23:17:21,371 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 23:17:21,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 42 states have (on average 1.380952380952381) internal successors, (58), 43 states have internal predecessors, (58), 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) [2025-03-16 23:17:21,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-03-16 23:17:21,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 23:17:21,384 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] [2025-03-16 23:17:21,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 23:17:21,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 23:17:21,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1541495361, now seen corresponding path program 1 times [2025-03-16 23:17:21,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 23:17:21,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678259684] [2025-03-16 23:17:21,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 23:17:21,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 23:17:21,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-16 23:17:21,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-16 23:17:21,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 23:17:21,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 23:17:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-03-16 23:17:21,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 23:17:21,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678259684] [2025-03-16 23:17:21,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678259684] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 23:17:21,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9017961] [2025-03-16 23:17:21,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 23:17:21,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 23:17:21,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 23:17:21,612 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) [2025-03-16 23:17:21,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-16 23:17:21,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-16 23:17:21,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-16 23:17:21,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 23:17:21,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 23:17:21,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 23:17:21,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 23:17:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-03-16 23:17:21,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 23:17:21,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9017961] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 23:17:21,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 23:17:21,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-16 23:17:21,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207525055] [2025-03-16 23:17:21,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 23:17:21,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 23:17:21,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 23:17:21,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 23:17:21,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 23:17:21,785 INFO L87 Difference]: Start difference. First operand has 64 states, 42 states have (on average 1.380952380952381) internal successors, (58), 43 states have internal predecessors, (58), 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 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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) [2025-03-16 23:17:21,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 23:17:21,805 INFO L93 Difference]: Finished difference Result 125 states and 209 transitions. [2025-03-16 23:17:21,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 23:17:21,807 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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 123 [2025-03-16 23:17:21,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 23:17:21,811 INFO L225 Difference]: With dead ends: 125 [2025-03-16 23:17:21,812 INFO L226 Difference]: Without dead ends: 62 [2025-03-16 23:17:21,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 23:17:21,817 INFO L435 NwaCegarLoop]: 90 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, 90 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 [2025-03-16 23:17:21,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 23:17:21,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2025-03-16 23:17:21,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2025-03-16 23:17:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 41 states have internal predecessors, (54), 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) [2025-03-16 23:17:21,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 92 transitions. [2025-03-16 23:17:21,842 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 92 transitions. Word has length 123 [2025-03-16 23:17:21,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 23:17:21,842 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 92 transitions. [2025-03-16 23:17:21,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 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) [2025-03-16 23:17:21,843 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 92 transitions. [2025-03-16 23:17:21,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-03-16 23:17:21,845 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 23:17:21,846 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] [2025-03-16 23:17:21,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-16 23:17:22,053 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 [2025-03-16 23:17:22,053 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 23:17:22,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 23:17:22,054 INFO L85 PathProgramCache]: Analyzing trace with hash -610431806, now seen corresponding path program 1 times [2025-03-16 23:17:22,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 23:17:22,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197166450] [2025-03-16 23:17:22,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 23:17:22,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 23:17:22,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-16 23:17:22,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-16 23:17:22,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 23:17:22,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-16 23:17:22,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860174121] [2025-03-16 23:17:22,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 23:17:22,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 23:17:22,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 23:17:22,187 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) [2025-03-16 23:17:22,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-16 23:17:22,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-16 23:17:22,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-16 23:17:22,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 23:17:22,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 23:17:22,296 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-16 23:17:22,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-16 23:17:22,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-16 23:17:22,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 23:17:22,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 23:17:22,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-16 23:17:22,415 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-16 23:17:22,416 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 23:17:22,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-16 23:17:22,618 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 [2025-03-16 23:17:22,620 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-16 23:17:22,676 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 23:17:22,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 11:17:22 BoogieIcfgContainer [2025-03-16 23:17:22,679 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 23:17:22,683 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 23:17:22,683 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 23:17:22,683 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 23:17:22,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 11:17:21" (3/4) ... [2025-03-16 23:17:22,685 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-16 23:17:22,686 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 23:17:22,686 INFO L158 Benchmark]: Toolchain (without parser) took 2097.72ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 52.5MB in the end (delta: 59.4MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2025-03-16 23:17:22,686 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 23:17:22,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.55ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 98.0MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 23:17:22,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.33ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 94.9MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 23:17:22,687 INFO L158 Benchmark]: Boogie Preprocessor took 30.82ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 90.3MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 23:17:22,687 INFO L158 Benchmark]: IcfgBuilder took 374.65ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 67.1MB in the end (delta: 23.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-16 23:17:22,687 INFO L158 Benchmark]: TraceAbstraction took 1382.95ms. Allocated memory is still 142.6MB. Free memory was 66.7MB in the beginning and 52.5MB in the end (delta: 14.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2025-03-16 23:17:22,687 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 142.6MB. Free memory was 52.5MB in the beginning and 52.5MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 23:17:22,688 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.55ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 98.0MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.33ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 94.9MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.82ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 90.3MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 374.65ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 67.1MB in the end (delta: 23.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1382.95ms. Allocated memory is still 142.6MB. Free memory was 66.7MB in the beginning and 52.5MB in the end (delta: 14.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 142.6MB. Free memory was 52.5MB in the beginning and 52.5MB 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 75, overapproximation of someBinaryFLOATComparisonOperation at line 113, overapproximation of someBinaryFLOATComparisonOperation at line 118, overapproximation of someBinaryFLOATComparisonOperation at line 109, overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 65, overapproximation of someBinaryArithmeticFLOAToperation at line 61. 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; [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=-129, 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=-129, 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=-129, 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=-129, 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=-129, 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=-129, 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=-129, 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=-129, 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=-129, 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=-129, var_1_4=799, 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=-129, var_1_4=799, 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=-129, var_1_4=799, 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=-129, var_1_4=799, 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=-129, var_1_4=799, 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=-129, var_1_4=799, 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=-129, var_1_4=799, var_1_5=0, 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=-129, var_1_4=799, var_1_5=0, 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=-129, var_1_4=799, var_1_5=0, 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=-129, var_1_4=799, var_1_5=0, 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=-129, var_1_4=799, var_1_5=0, 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=-129, var_1_4=799, var_1_5=0, 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=-129, var_1_4=799, var_1_5=0, 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=-129, var_1_4=799, var_1_5=0, 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=-129, var_1_4=799, var_1_5=0, 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=63, 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=-129, var_1_4=799, var_1_5=0, 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=63, 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=-129, var_1_4=799, var_1_5=0, 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=63, 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=-129, var_1_4=799, var_1_5=0, 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=63, 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=-129, var_1_4=799, var_1_5=0, 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=63, 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=-129, var_1_4=799, var_1_5=0, 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=63, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=65, var_1_10=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, var_1_6=799, 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=127, var_1_10=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, var_1_6=799, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, var_1_6=799, var_1_7=0, var_1_8=127, 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=63, var_1_11=48, 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=-129, var_1_4=799, var_1_5=0, var_1_6=799, var_1_7=0, var_1_8=127] [L65] var_1_15 = (var_1_14 + var_1_16) VAL [isInitial=1, var_1_10=63, var_1_11=48, var_1_12=0, var_1_17=-256, var_1_18=63/2, var_1_1=96, var_1_2=1, var_1_3=-129, var_1_4=799, var_1_5=0, var_1_6=799, var_1_7=0, var_1_8=127] [L66] COND TRUE \read(var_1_2) [L67] var_1_17 = (var_1_3 + var_1_12) VAL [isInitial=1, var_1_10=63, var_1_11=48, var_1_12=0, var_1_17=127, var_1_18=63/2, var_1_1=96, var_1_2=1, var_1_3=-129, var_1_4=799, var_1_5=0, var_1_6=799, var_1_7=0, var_1_8=127] [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=63, var_1_11=48, var_1_12=0, var_1_16=2, var_1_17=127, var_1_18=2, var_1_1=96, var_1_2=1, var_1_3=-129, var_1_4=799, var_1_5=0, var_1_6=799, var_1_7=0, var_1_8=127] [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=63, var_1_11=48, var_1_12=0, var_1_16=2, var_1_17=127, var_1_18=2, var_1_1=96, var_1_2=1, var_1_3=-129, var_1_4=799, var_1_5=0, var_1_6=799, var_1_7=0, var_1_8=127] [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=63, var_1_11=48, var_1_12=0, var_1_16=2, var_1_17=127, var_1_18=2, var_1_1=96, var_1_2=1, var_1_3=-129, var_1_4=799, var_1_5=0, var_1_6=799, var_1_7=0, var_1_8=127] [L19] reach_error() VAL [isInitial=1, var_1_10=63, var_1_11=48, var_1_12=0, var_1_16=2, var_1_17=127, var_1_18=2, var_1_1=96, var_1_2=1, var_1_3=-129, var_1_4=799, var_1_5=0, var_1_6=799, var_1_7=0, var_1_8=127] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 115 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 90 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, 90 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 244 ConstructedInterpolants, 0 QuantifiedInterpolants, 244 SizeOfPredicates, 0 NumberOfNonLiveVariables, 282 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 [2025-03-16 23:17:22,705 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-?-8fc3dc6-m [2025-03-16 23:17:24,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 23:17:24,555 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-16 23:17:24,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 23:17:24,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 23:17:24,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 23:17:24,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 23:17:24,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 23:17:24,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 23:17:24,581 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 23:17:24,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 23:17:24,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 23:17:24,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 23:17:24,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 23:17:24,582 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 23:17:24,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 23:17:24,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 23:17:24,583 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 23:17:24,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 23:17:24,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 23:17:24,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 23:17:24,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 23:17:24,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 23:17:24,584 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-16 23:17:24,584 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-16 23:17:24,584 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-16 23:17:24,584 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 23:17:24,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 23:17:24,584 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 23:17:24,584 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 23:17:24,584 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 23:17:24,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 23:17:24,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 23:17:24,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 23:17:24,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 23:17:24,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 23:17:24,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 23:17:24,585 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 23:17:24,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 23:17:24,585 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-16 23:17:24,585 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-16 23:17:24,586 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 23:17:24,586 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 23:17:24,586 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 23:17:24,586 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 23:17:24,586 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 [2025-03-16 23:17:24,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 23:17:24,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 23:17:24,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 23:17:24,835 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 23:17:24,836 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 23:17:24,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-20.i [2025-03-16 23:17:26,017 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acd732c5e/75005452b9fe4ce7a7e18ae18667c70e/FLAG958815159 [2025-03-16 23:17:26,201 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 23:17:26,202 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-20.i [2025-03-16 23:17:26,208 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acd732c5e/75005452b9fe4ce7a7e18ae18667c70e/FLAG958815159 [2025-03-16 23:17:26,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acd732c5e/75005452b9fe4ce7a7e18ae18667c70e [2025-03-16 23:17:26,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 23:17:26,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 23:17:26,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 23:17:26,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 23:17:26,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 23:17:26,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f770e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26, skipping insertion in model container [2025-03-16 23:17:26,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,247 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 23:17:26,354 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] [2025-03-16 23:17:26,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 23:17:26,426 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 23:17:26,437 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] [2025-03-16 23:17:26,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 23:17:26,474 INFO L204 MainTranslator]: Completed translation [2025-03-16 23:17:26,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26 WrapperNode [2025-03-16 23:17:26,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 23:17:26,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 23:17:26,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 23:17:26,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 23:17:26,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,513 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2025-03-16 23:17:26,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 23:17:26,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 23:17:26,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 23:17:26,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 23:17:26,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,544 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]. [2025-03-16 23:17:26,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,556 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 23:17:26,571 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 23:17:26,571 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 23:17:26,571 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 23:17:26,572 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (1/1) ... [2025-03-16 23:17:26,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 23:17:26,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 23:17:26,600 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) [2025-03-16 23:17:26,604 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 [2025-03-16 23:17:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 23:17:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-16 23:17:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-16 23:17:26,624 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-16 23:17:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 23:17:26,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 23:17:26,686 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 23:17:26,687 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 23:17:32,570 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-03-16 23:17:32,570 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 23:17:32,577 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 23:17:32,578 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 23:17:32,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 11:17:32 BoogieIcfgContainer [2025-03-16 23:17:32,578 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 23:17:32,580 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 23:17:32,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 23:17:32,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 23:17:32,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 11:17:26" (1/3) ... [2025-03-16 23:17:32,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a4cf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 11:17:32, skipping insertion in model container [2025-03-16 23:17:32,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 11:17:26" (2/3) ... [2025-03-16 23:17:32,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a4cf04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 11:17:32, skipping insertion in model container [2025-03-16 23:17:32,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 11:17:32" (3/3) ... [2025-03-16 23:17:32,585 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-20.i [2025-03-16 23:17:32,595 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 23:17:32,596 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-20.i that has 2 procedures, 54 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 23:17:32,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 23:17:32,639 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;@3bb06576, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 23:17:32,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 23:17:32,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 32 states have (on average 1.375) internal successors, (44), 33 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) [2025-03-16 23:17:32,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-03-16 23:17:32,649 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 23:17:32,649 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] [2025-03-16 23:17:32,650 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 23:17:32,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 23:17:32,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2122210317, now seen corresponding path program 1 times [2025-03-16 23:17:32,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 23:17:32,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447492922] [2025-03-16 23:17:32,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 23:17:32,662 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 [2025-03-16 23:17:32,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 23:17:32,665 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) [2025-03-16 23:17:32,666 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 [2025-03-16 23:17:32,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-16 23:17:32,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-16 23:17:32,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 23:17:32,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 23:17:32,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 23:17:33,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 23:17:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2025-03-16 23:17:33,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 23:17:33,044 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 23:17:33,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447492922] [2025-03-16 23:17:33,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447492922] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 23:17:33,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 23:17:33,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 23:17:33,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897836608] [2025-03-16 23:17:33,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 23:17:33,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 23:17:33,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 23:17:33,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 23:17:33,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 23:17:33,063 INFO L87 Difference]: Start difference. First operand has 54 states, 32 states have (on average 1.375) internal successors, (44), 33 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) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2025-03-16 23:17:33,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 23:17:33,078 INFO L93 Difference]: Finished difference Result 105 states and 181 transitions. [2025-03-16 23:17:33,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 23:17:33,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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 120 [2025-03-16 23:17:33,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 23:17:33,084 INFO L225 Difference]: With dead ends: 105 [2025-03-16 23:17:33,084 INFO L226 Difference]: Without dead ends: 52 [2025-03-16 23:17:33,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 23:17:33,088 INFO L435 NwaCegarLoop]: 78 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, 78 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 [2025-03-16 23:17:33,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 23:17:33,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-03-16 23:17:33,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2025-03-16 23:17:33,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 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) [2025-03-16 23:17:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2025-03-16 23:17:33,121 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 120 [2025-03-16 23:17:33,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 23:17:33,121 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2025-03-16 23:17:33,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2025-03-16 23:17:33,121 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2025-03-16 23:17:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-03-16 23:17:33,124 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 23:17:33,124 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] [2025-03-16 23:17:33,135 INFO L540 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)] Forceful destruction successful, exit code 0 [2025-03-16 23:17:33,325 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 [2025-03-16 23:17:33,325 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 23:17:33,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 23:17:33,326 INFO L85 PathProgramCache]: Analyzing trace with hash 14996432, now seen corresponding path program 1 times [2025-03-16 23:17:33,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 23:17:33,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86738731] [2025-03-16 23:17:33,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 23:17:33,326 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 [2025-03-16 23:17:33,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 23:17:33,328 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) [2025-03-16 23:17:33,329 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 [2025-03-16 23:17:33,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-16 23:17:33,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-16 23:17:33,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 23:17:33,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 23:17:33,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-16 23:17:33,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 23:18:15,182 WARN L286 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-16 23:19:02,437 WARN L286 SmtUtils]: Spent 18.13s on a formula simplification that was a NOOP. DAG size: 95 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)