./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-97.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 b7a9f76a8f140f3e23a190528056f362449b512050c0034b2a11947040898a2f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 09:55:40,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 09:55:40,461 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 09:55:40,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 09:55:40,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 09:55:40,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 09:55:40,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 09:55:40,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 09:55:40,486 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 09:55:40,486 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 09:55:40,486 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 09:55:40,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 09:55:40,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 09:55:40,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 09:55:40,487 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 09:55:40,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 09:55:40,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 09:55:40,488 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 09:55:40,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 09:55:40,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 09:55:40,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 09:55:40,488 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 09:55:40,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 09:55:40,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 09:55:40,489 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 09:55:40,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 09:55:40,489 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 09:55:40,489 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 -> b7a9f76a8f140f3e23a190528056f362449b512050c0034b2a11947040898a2f [2025-03-08 09:55:40,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 09:55:40,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 09:55:40,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 09:55:40,712 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 09:55:40,713 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 09:55:40,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-97.i [2025-03-08 09:55:41,829 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb97e7fa/675450cae3444447be1f2139d27c2b9a/FLAG391500ba9 [2025-03-08 09:55:42,101 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 09:55:42,102 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-97.i [2025-03-08 09:55:42,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb97e7fa/675450cae3444447be1f2139d27c2b9a/FLAG391500ba9 [2025-03-08 09:55:42,413 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eb97e7fa/675450cae3444447be1f2139d27c2b9a [2025-03-08 09:55:42,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 09:55:42,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 09:55:42,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 09:55:42,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 09:55:42,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 09:55:42,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e42eceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42, skipping insertion in model container [2025-03-08 09:55:42,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,440 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 09:55:42,547 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_dependencies_file-97.i[919,932] [2025-03-08 09:55:42,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 09:55:42,623 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 09:55:42,632 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_dependencies_file-97.i[919,932] [2025-03-08 09:55:42,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 09:55:42,681 INFO L204 MainTranslator]: Completed translation [2025-03-08 09:55:42,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42 WrapperNode [2025-03-08 09:55:42,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 09:55:42,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 09:55:42,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 09:55:42,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 09:55:42,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,717 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 181 [2025-03-08 09:55:42,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 09:55:42,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 09:55:42,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 09:55:42,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 09:55:42,727 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,729 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,740 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 09:55:42,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,746 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,752 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 09:55:42,755 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 09:55:42,755 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 09:55:42,755 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 09:55:42,756 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (1/1) ... [2025-03-08 09:55:42,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 09:55:42,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 09:55:42,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 09:55:42,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 09:55:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 09:55:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 09:55:42,809 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 09:55:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 09:55:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 09:55:42,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 09:55:42,872 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 09:55:42,873 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 09:55:43,148 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L117: havoc property_#t~ite17#1;havoc property_#t~ite16#1;havoc property_#t~bitwise15#1;havoc property_#t~short18#1;havoc property_#t~ite20#1;havoc property_#t~bitwise19#1;havoc property_#t~short21#1; [2025-03-08 09:55:43,173 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-03-08 09:55:43,173 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 09:55:43,196 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 09:55:43,196 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 09:55:43,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:55:43 BoogieIcfgContainer [2025-03-08 09:55:43,196 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 09:55:43,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 09:55:43,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 09:55:43,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 09:55:43,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:55:42" (1/3) ... [2025-03-08 09:55:43,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8f08f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:55:43, skipping insertion in model container [2025-03-08 09:55:43,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:42" (2/3) ... [2025-03-08 09:55:43,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8f08f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:55:43, skipping insertion in model container [2025-03-08 09:55:43,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:55:43" (3/3) ... [2025-03-08 09:55:43,204 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-97.i [2025-03-08 09:55:43,214 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 09:55:43,216 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_dependencies_file-97.i that has 2 procedures, 79 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 09:55:43,269 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 09:55:43,279 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;@37ce548, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 09:55:43,280 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 09:55:43,284 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 60 states have (on average 1.45) internal successors, (87), 61 states have internal predecessors, (87), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 09:55:43,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-08 09:55:43,293 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:43,293 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:43,294 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:43,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:43,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1360866031, now seen corresponding path program 1 times [2025-03-08 09:55:43,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:55:43,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433217182] [2025-03-08 09:55:43,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:43,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:55:43,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 09:55:43,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 09:55:43,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:43,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2025-03-08 09:55:43,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 09:55:43,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433217182] [2025-03-08 09:55:43,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433217182] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 09:55:43,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872257230] [2025-03-08 09:55:43,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:43,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 09:55:43,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 09:55:43,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 09:55:43,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 09:55:43,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 09:55:43,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 09:55:43,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:43,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:43,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 09:55:43,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 09:55:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2025-03-08 09:55:43,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 09:55:43,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872257230] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:43,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 09:55:43,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 09:55:43,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361337861] [2025-03-08 09:55:43,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:43,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 09:55:43,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 09:55:43,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 09:55:43,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 09:55:43,705 INFO L87 Difference]: Start difference. First operand has 79 states, 60 states have (on average 1.45) internal successors, (87), 61 states have internal predecessors, (87), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-08 09:55:43,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:43,735 INFO L93 Difference]: Finished difference Result 152 states and 249 transitions. [2025-03-08 09:55:43,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 09:55:43,737 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 109 [2025-03-08 09:55:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:43,744 INFO L225 Difference]: With dead ends: 152 [2025-03-08 09:55:43,745 INFO L226 Difference]: Without dead ends: 76 [2025-03-08 09:55:43,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 09:55:43,749 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 09:55:43,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 09:55:43,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2025-03-08 09:55:43,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2025-03-08 09:55:43,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 58 states have internal predecessors, (82), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 09:55:43,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 114 transitions. [2025-03-08 09:55:43,781 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 114 transitions. Word has length 109 [2025-03-08 09:55:43,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:55:43,783 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 114 transitions. [2025-03-08 09:55:43,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-08 09:55:43,783 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 114 transitions. [2025-03-08 09:55:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-08 09:55:43,786 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:43,786 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:43,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 09:55:43,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 09:55:43,987 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:43,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:43,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1713861645, now seen corresponding path program 1 times [2025-03-08 09:55:43,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:55:43,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490095563] [2025-03-08 09:55:43,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:43,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:55:43,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 09:55:44,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 09:55:44,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:44,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-08 09:55:44,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 09:55:44,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490095563] [2025-03-08 09:55:44,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490095563] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:44,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:55:44,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 09:55:44,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519359415] [2025-03-08 09:55:44,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:44,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 09:55:44,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 09:55:44,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 09:55:44,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 09:55:44,136 INFO L87 Difference]: Start difference. First operand 76 states and 114 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:44,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:44,210 INFO L93 Difference]: Finished difference Result 204 states and 306 transitions. [2025-03-08 09:55:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 09:55:44,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 109 [2025-03-08 09:55:44,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:44,215 INFO L225 Difference]: With dead ends: 204 [2025-03-08 09:55:44,215 INFO L226 Difference]: Without dead ends: 131 [2025-03-08 09:55:44,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 09:55:44,216 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 98 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 09:55:44,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 247 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 09:55:44,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2025-03-08 09:55:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 91. [2025-03-08 09:55:44,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 73 states have (on average 1.3972602739726028) internal successors, (102), 73 states have internal predecessors, (102), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 09:55:44,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 134 transitions. [2025-03-08 09:55:44,233 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 134 transitions. Word has length 109 [2025-03-08 09:55:44,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:55:44,235 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 134 transitions. [2025-03-08 09:55:44,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 134 transitions. [2025-03-08 09:55:44,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-08 09:55:44,237 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:44,238 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:44,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 09:55:44,238 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:44,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:44,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1420458638, now seen corresponding path program 1 times [2025-03-08 09:55:44,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:55:44,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052394290] [2025-03-08 09:55:44,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:44,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:55:44,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 09:55:44,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 09:55:44,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:44,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:44,571 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-08 09:55:44,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 09:55:44,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052394290] [2025-03-08 09:55:44,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052394290] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:44,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:55:44,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 09:55:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867647027] [2025-03-08 09:55:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:44,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 09:55:44,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 09:55:44,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 09:55:44,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 09:55:44,574 INFO L87 Difference]: Start difference. First operand 91 states and 134 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:44,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:44,812 INFO L93 Difference]: Finished difference Result 294 states and 437 transitions. [2025-03-08 09:55:44,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 09:55:44,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 109 [2025-03-08 09:55:44,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:44,814 INFO L225 Difference]: With dead ends: 294 [2025-03-08 09:55:44,814 INFO L226 Difference]: Without dead ends: 206 [2025-03-08 09:55:44,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 09:55:44,815 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 136 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 09:55:44,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 284 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 09:55:44,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2025-03-08 09:55:44,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 171. [2025-03-08 09:55:44,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 136 states have (on average 1.375) internal successors, (187), 136 states have internal predecessors, (187), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-08 09:55:44,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 251 transitions. [2025-03-08 09:55:44,832 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 251 transitions. Word has length 109 [2025-03-08 09:55:44,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:55:44,832 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 251 transitions. [2025-03-08 09:55:44,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:44,832 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 251 transitions. [2025-03-08 09:55:44,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-08 09:55:44,833 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:44,833 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:44,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 09:55:44,834 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:44,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:44,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1234183619, now seen corresponding path program 1 times [2025-03-08 09:55:44,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:55:44,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541330115] [2025-03-08 09:55:44,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:44,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:55:44,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-08 09:55:44,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-08 09:55:44,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:44,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:45,114 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-08 09:55:45,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 09:55:45,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541330115] [2025-03-08 09:55:45,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541330115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:45,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:55:45,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 09:55:45,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521088755] [2025-03-08 09:55:45,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:45,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 09:55:45,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 09:55:45,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 09:55:45,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 09:55:45,116 INFO L87 Difference]: Start difference. First operand 171 states and 251 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:45,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:45,310 INFO L93 Difference]: Finished difference Result 422 states and 618 transitions. [2025-03-08 09:55:45,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 09:55:45,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2025-03-08 09:55:45,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:45,313 INFO L225 Difference]: With dead ends: 422 [2025-03-08 09:55:45,313 INFO L226 Difference]: Without dead ends: 254 [2025-03-08 09:55:45,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-08 09:55:45,317 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 93 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 09:55:45,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 364 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 09:55:45,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2025-03-08 09:55:45,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 228. [2025-03-08 09:55:45,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 176 states have (on average 1.3522727272727273) internal successors, (238), 176 states have internal predecessors, (238), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2025-03-08 09:55:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 334 transitions. [2025-03-08 09:55:45,348 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 334 transitions. Word has length 110 [2025-03-08 09:55:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:55:45,351 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 334 transitions. [2025-03-08 09:55:45,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 334 transitions. [2025-03-08 09:55:45,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-08 09:55:45,352 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:45,352 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:45,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 09:55:45,352 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:45,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:45,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1146972172, now seen corresponding path program 1 times [2025-03-08 09:55:45,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:55:45,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752476555] [2025-03-08 09:55:45,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:45,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:55:45,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-08 09:55:45,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-08 09:55:45,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:45,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-08 09:55:45,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 09:55:45,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752476555] [2025-03-08 09:55:45,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752476555] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:45,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:55:45,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 09:55:45,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214676382] [2025-03-08 09:55:45,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:45,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 09:55:45,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 09:55:45,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 09:55:45,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 09:55:45,550 INFO L87 Difference]: Start difference. First operand 228 states and 334 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:45,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:45,972 INFO L93 Difference]: Finished difference Result 706 states and 1022 transitions. [2025-03-08 09:55:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 09:55:45,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2025-03-08 09:55:45,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:45,975 INFO L225 Difference]: With dead ends: 706 [2025-03-08 09:55:45,975 INFO L226 Difference]: Without dead ends: 534 [2025-03-08 09:55:45,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-08 09:55:45,978 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 282 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 09:55:45,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 443 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 09:55:45,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2025-03-08 09:55:46,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 409. [2025-03-08 09:55:46,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 323 states have (on average 1.3405572755417956) internal successors, (433), 323 states have internal predecessors, (433), 80 states have call successors, (80), 5 states have call predecessors, (80), 5 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-03-08 09:55:46,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 593 transitions. [2025-03-08 09:55:46,018 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 593 transitions. Word has length 111 [2025-03-08 09:55:46,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:55:46,018 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 593 transitions. [2025-03-08 09:55:46,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:46,019 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 593 transitions. [2025-03-08 09:55:46,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-08 09:55:46,020 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:46,020 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:46,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 09:55:46,021 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:46,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:46,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1241071079, now seen corresponding path program 1 times [2025-03-08 09:55:46,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:55:46,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596489237] [2025-03-08 09:55:46,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:46,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:55:46,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-08 09:55:46,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-08 09:55:46,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:46,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:46,379 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-08 09:55:46,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 09:55:46,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596489237] [2025-03-08 09:55:46,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596489237] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:46,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:55:46,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 09:55:46,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586539551] [2025-03-08 09:55:46,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:46,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 09:55:46,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 09:55:46,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 09:55:46,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 09:55:46,381 INFO L87 Difference]: Start difference. First operand 409 states and 593 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:46,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:46,473 INFO L93 Difference]: Finished difference Result 754 states and 1097 transitions. [2025-03-08 09:55:46,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 09:55:46,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2025-03-08 09:55:46,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:46,476 INFO L225 Difference]: With dead ends: 754 [2025-03-08 09:55:46,476 INFO L226 Difference]: Without dead ends: 409 [2025-03-08 09:55:46,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 09:55:46,477 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 89 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 09:55:46,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 520 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 09:55:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2025-03-08 09:55:46,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2025-03-08 09:55:46,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 323 states have (on average 1.3003095975232197) internal successors, (420), 323 states have internal predecessors, (420), 80 states have call successors, (80), 5 states have call predecessors, (80), 5 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-03-08 09:55:46,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 580 transitions. [2025-03-08 09:55:46,519 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 580 transitions. Word has length 111 [2025-03-08 09:55:46,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:55:46,520 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 580 transitions. [2025-03-08 09:55:46,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:46,520 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 580 transitions. [2025-03-08 09:55:46,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-08 09:55:46,521 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:46,521 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:46,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 09:55:46,522 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:46,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:46,522 INFO L85 PathProgramCache]: Analyzing trace with hash -648510444, now seen corresponding path program 1 times [2025-03-08 09:55:46,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:55:46,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790407827] [2025-03-08 09:55:46,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:46,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:55:46,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-08 09:55:46,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-08 09:55:46,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:46,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-08 09:55:51,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 09:55:51,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790407827] [2025-03-08 09:55:51,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790407827] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:51,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:55:51,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-08 09:55:51,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063896823] [2025-03-08 09:55:51,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:51,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 09:55:51,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 09:55:51,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 09:55:51,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-08 09:55:51,281 INFO L87 Difference]: Start difference. First operand 409 states and 580 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:52,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:52,654 INFO L93 Difference]: Finished difference Result 1043 states and 1445 transitions. [2025-03-08 09:55:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 09:55:52,655 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 115 [2025-03-08 09:55:52,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:52,658 INFO L225 Difference]: With dead ends: 1043 [2025-03-08 09:55:52,658 INFO L226 Difference]: Without dead ends: 681 [2025-03-08 09:55:52,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2025-03-08 09:55:52,659 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 181 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 09:55:52,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 664 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 09:55:52,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2025-03-08 09:55:52,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 612. [2025-03-08 09:55:52,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 514 states have (on average 1.2762645914396886) internal successors, (656), 518 states have internal predecessors, (656), 88 states have call successors, (88), 9 states have call predecessors, (88), 9 states have return successors, (88), 84 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-08 09:55:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 832 transitions. [2025-03-08 09:55:52,722 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 832 transitions. Word has length 115 [2025-03-08 09:55:52,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:55:52,722 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 832 transitions. [2025-03-08 09:55:52,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:52,723 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 832 transitions. [2025-03-08 09:55:52,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-08 09:55:52,724 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:52,725 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:52,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 09:55:52,725 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:52,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:52,725 INFO L85 PathProgramCache]: Analyzing trace with hash -437159531, now seen corresponding path program 1 times [2025-03-08 09:55:52,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 09:55:52,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240596372] [2025-03-08 09:55:52,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:52,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 09:55:52,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-08 09:55:52,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-08 09:55:52,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:52,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 09:55:52,756 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 09:55:52,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-08 09:55:52,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-08 09:55:52,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:52,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 09:55:52,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 09:55:52,814 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 09:55:52,815 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 09:55:52,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 09:55:52,818 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:52,883 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 09:55:52,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 09:55:52 BoogieIcfgContainer [2025-03-08 09:55:52,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 09:55:52,885 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 09:55:52,885 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 09:55:52,885 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 09:55:52,889 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:55:43" (3/4) ... [2025-03-08 09:55:52,891 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 09:55:52,891 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 09:55:52,892 INFO L158 Benchmark]: Toolchain (without parser) took 10475.30ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 112.3MB in the beginning and 257.9MB in the end (delta: -145.6MB). Peak memory consumption was 147.9MB. Max. memory is 16.1GB. [2025-03-08 09:55:52,892 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 201.3MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 09:55:52,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.59ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 98.6MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 09:55:52,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.57ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 95.0MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 09:55:52,892 INFO L158 Benchmark]: Boogie Preprocessor took 34.33ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 89.4MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 09:55:52,892 INFO L158 Benchmark]: IcfgBuilder took 441.06ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 63.5MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 09:55:52,893 INFO L158 Benchmark]: TraceAbstraction took 9686.96ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 63.0MB in the beginning and 258.0MB in the end (delta: -195.0MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2025-03-08 09:55:52,893 INFO L158 Benchmark]: Witness Printer took 5.81ms. Allocated memory is still 436.2MB. Free memory was 258.0MB in the beginning and 257.9MB in the end (delta: 72.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 09:55:52,894 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 201.3MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.59ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 98.6MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.57ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 95.0MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.33ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 89.4MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 441.06ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 63.5MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9686.96ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 63.0MB in the beginning and 258.0MB in the end (delta: -195.0MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. * Witness Printer took 5.81ms. Allocated memory is still 436.2MB. Free memory was 258.0MB in the beginning and 257.9MB in the end (delta: 72.1kB). 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 43, overapproximation of someBinaryFLOATComparisonOperation at line 117, overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 2; [L23] signed long int var_1_5 = 5; [L24] unsigned char var_1_8 = 0; [L25] float var_1_9 = 128.6; [L26] float var_1_10 = 32.5; [L27] unsigned char var_1_11 = 16; [L28] unsigned char var_1_12 = 64; [L29] unsigned char var_1_13 = 4; [L30] unsigned char var_1_14 = 4; [L31] unsigned long int var_1_15 = 0; [L32] signed short int var_1_16 = 0; [L33] signed char var_1_17 = 1; [L34] signed char var_1_18 = -1; [L35] signed char var_1_19 = 0; [L36] signed long int var_1_20 = -64; [L37] unsigned char var_1_22 = 0; [L38] unsigned char var_1_23 = 0; [L39] signed long int last_1_var_1_5 = 5; VAL [isInitial=0, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0, var_1_9=643/5] [L121] isInitial = 1 [L122] FCALL initially() [L123] COND TRUE 1 [L124] CALL updateLastVariables() [L114] last_1_var_1_5 = var_1_5 VAL [isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0, var_1_9=643/5] [L124] RET updateLastVariables() [L125] CALL updateVariables() [L87] var_1_9 = __VERIFIER_nondet_float() [L88] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L88] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_10=65/2, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L89] var_1_10 = __VERIFIER_nondet_float() [L90] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L90] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=16, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L91] var_1_11 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L92] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L93] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L93] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=64, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L94] var_1_12 = __VERIFIER_nondet_uchar() [L95] CALL assume_abort_if_not(var_1_12 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L95] RET assume_abort_if_not(var_1_12 >= 63) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L96] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L96] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=4, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L97] var_1_13 = __VERIFIER_nondet_uchar() [L98] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L98] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L99] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L99] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=4, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L100] var_1_14 = __VERIFIER_nondet_uchar() [L101] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L101] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L102] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L102] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=-1, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L103] var_1_18 = __VERIFIER_nondet_char() [L104] CALL assume_abort_if_not(var_1_18 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L104] RET assume_abort_if_not(var_1_18 >= -31) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L105] CALL assume_abort_if_not(var_1_18 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L105] RET assume_abort_if_not(var_1_18 <= 32) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=0, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L106] var_1_19 = __VERIFIER_nondet_char() [L107] CALL assume_abort_if_not(var_1_19 >= -15) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L107] RET assume_abort_if_not(var_1_19 >= -15) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L108] CALL assume_abort_if_not(var_1_19 <= 16) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L108] RET assume_abort_if_not(var_1_19 <= 16) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L109] var_1_23 = __VERIFIER_nondet_uchar() [L110] CALL assume_abort_if_not(var_1_23 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_5=5, var_1_8=0] [L110] RET assume_abort_if_not(var_1_23 >= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_5=5, var_1_8=0] [L111] CALL assume_abort_if_not(var_1_23 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L111] RET assume_abort_if_not(var_1_23 <= 0) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L125] RET updateVariables() [L126] CALL step() [L43] COND FALSE !(var_1_9 > var_1_10) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=-64, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L46] var_1_20 = var_1_8 [L47] var_1_22 = var_1_23 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L48] COND FALSE !(\read(var_1_22)) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L51] var_1_16 = (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=1, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L52] COND FALSE !(\read(var_1_22)) [L59] var_1_17 = -32 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L61] COND TRUE (var_1_20 + var_1_15) < -200 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=2, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L62] COND FALSE !(\read(var_1_22)) [L69] var_1_1 = var_1_20 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L74] COND FALSE !(256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=5, var_1_8=0] [L77] COND FALSE !(var_1_22 || var_1_22) [L82] var_1_5 = -10000 VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L126] RET step() [L127] CALL, EXPR property() [L117] EXPR (((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L117] EXPR (256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L117] EXPR (var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L117] EXPR (256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L117] EXPR (((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000)))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L117] EXPR (((((((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))))) && ((var_1_9 > var_1_10) ? (var_1_8 == ((unsigned char) (((((var_1_11 + (var_1_12 - var_1_13))) < ((5 + var_1_14))) ? ((var_1_11 + (var_1_12 - var_1_13))) : ((5 + var_1_14)))))) : 1)) && (var_1_22 ? (var_1_15 == ((unsigned long int) var_1_8)) : 1)) && (var_1_16 == ((signed short int) (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11)))) && (var_1_22 ? ((var_1_14 < (var_1_13 & (var_1_15 / 2))) ? (var_1_17 == ((signed char) (var_1_13 + (var_1_18 + (var_1_19 + 5))))) : (var_1_17 == ((signed char) var_1_18))) : (var_1_17 == ((signed char) -32))) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L117-L118] return (((((((((var_1_20 + var_1_15) < -200) ? (var_1_22 ? ((var_1_20 > (- var_1_15)) ? (var_1_1 == ((unsigned long int) var_1_20)) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) : (var_1_1 == ((unsigned long int) var_1_20))) && ((256 > (var_1_15 - (last_1_var_1_5 + var_1_8))) ? (var_1_5 == ((signed long int) last_1_var_1_5)) : ((var_1_22 || var_1_22) ? ((((32 * -25) | last_1_var_1_5) >= var_1_15) ? (var_1_5 == ((signed long int) var_1_8)) : 1) : (var_1_5 == ((signed long int) -10000))))) && ((var_1_9 > var_1_10) ? (var_1_8 == ((unsigned char) (((((var_1_11 + (var_1_12 - var_1_13))) < ((5 + var_1_14))) ? ((var_1_11 + (var_1_12 - var_1_13))) : ((5 + var_1_14)))))) : 1)) && (var_1_22 ? (var_1_15 == ((unsigned long int) var_1_8)) : 1)) && (var_1_16 == ((signed short int) (((((var_1_15) < (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12))))) ? (var_1_15) : (((((var_1_13) > (var_1_12)) ? (var_1_13) : (var_1_12)))))) - var_1_11)))) && (var_1_22 ? ((var_1_14 < (var_1_13 & (var_1_15 / 2))) ? (var_1_17 == ((signed char) (var_1_13 + (var_1_18 + (var_1_19 + 5))))) : (var_1_17 == ((signed char) var_1_18))) : (var_1_17 == ((signed char) -32)))) && (var_1_20 == ((signed long int) var_1_8))) && (var_1_22 == ((unsigned char) var_1_23)) ; [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_5=5, var_1_11=0, var_1_12=127, var_1_13=63, var_1_14=58, var_1_15=0, var_1_16=0, var_1_17=-32, var_1_18=0, var_1_19=-15, var_1_1=0, var_1_20=0, var_1_22=0, var_1_23=0, var_1_5=-10000, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 135 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.6s, OverallIterations: 8, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 879 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 879 mSDsluCounter, 2632 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1675 mSDsCounter, 253 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 892 IncrementalHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 253 mSolverCounterUnsat, 957 mSDtfsCounter, 892 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=612occurred in iteration=7, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 295 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 998 NumberOfCodeBlocks, 998 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 875 ConstructedInterpolants, 0 QuantifiedInterpolants, 8545 SizeOfPredicates, 0 NumberOfNonLiveVariables, 259 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 3810/3840 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-08 09:55:52,919 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_dependencies_file-97.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 b7a9f76a8f140f3e23a190528056f362449b512050c0034b2a11947040898a2f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 09:55:54,687 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 09:55:54,767 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 09:55:54,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 09:55:54,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 09:55:54,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 09:55:54,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 09:55:54,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 09:55:54,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 09:55:54,793 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 09:55:54,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 09:55:54,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 09:55:54,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 09:55:54,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 09:55:54,794 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 09:55:54,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 09:55:54,795 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 09:55:54,796 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 09:55:54,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 09:55:54,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 09:55:54,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 09:55:54,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 09:55:54,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 09:55:54,797 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 -> b7a9f76a8f140f3e23a190528056f362449b512050c0034b2a11947040898a2f [2025-03-08 09:55:55,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 09:55:55,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 09:55:55,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 09:55:55,052 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 09:55:55,052 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 09:55:55,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-97.i [2025-03-08 09:55:56,230 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/542ec2e17/2798cd6472b841c39f3342f97dd65978/FLAGb5cc0fcf1 [2025-03-08 09:55:56,464 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 09:55:56,465 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-97.i [2025-03-08 09:55:56,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/542ec2e17/2798cd6472b841c39f3342f97dd65978/FLAGb5cc0fcf1 [2025-03-08 09:55:56,803 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/542ec2e17/2798cd6472b841c39f3342f97dd65978 [2025-03-08 09:55:56,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 09:55:56,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 09:55:56,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 09:55:56,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 09:55:56,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 09:55:56,812 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:55:56" (1/1) ... [2025-03-08 09:55:56,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2472c941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:56, skipping insertion in model container [2025-03-08 09:55:56,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:55:56" (1/1) ... [2025-03-08 09:55:56,827 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 09:55:56,930 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_dependencies_file-97.i[919,932] [2025-03-08 09:55:56,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 09:55:56,996 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 09:55:57,007 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_dependencies_file-97.i[919,932] [2025-03-08 09:55:57,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 09:55:57,052 INFO L204 MainTranslator]: Completed translation [2025-03-08 09:55:57,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57 WrapperNode [2025-03-08 09:55:57,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 09:55:57,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 09:55:57,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 09:55:57,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 09:55:57,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,083 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2025-03-08 09:55:57,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 09:55:57,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 09:55:57,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 09:55:57,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 09:55:57,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,093 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,101 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 09:55:57,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,109 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 09:55:57,114 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 09:55:57,114 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 09:55:57,114 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 09:55:57,115 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (1/1) ... [2025-03-08 09:55:57,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 09:55:57,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 09:55:57,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 09:55:57,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 09:55:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 09:55:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 09:55:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 09:55:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 09:55:57,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 09:55:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 09:55:57,228 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 09:55:57,230 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 09:55:57,472 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-08 09:55:57,473 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 09:55:57,482 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 09:55:57,483 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 09:55:57,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:55:57 BoogieIcfgContainer [2025-03-08 09:55:57,483 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 09:55:57,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 09:55:57,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 09:55:57,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 09:55:57,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:55:56" (1/3) ... [2025-03-08 09:55:57,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f3115c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:55:57, skipping insertion in model container [2025-03-08 09:55:57,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:55:57" (2/3) ... [2025-03-08 09:55:57,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f3115c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:55:57, skipping insertion in model container [2025-03-08 09:55:57,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:55:57" (3/3) ... [2025-03-08 09:55:57,492 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-97.i [2025-03-08 09:55:57,505 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 09:55:57,506 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_dependencies_file-97.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 09:55:57,554 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 09:55:57,561 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;@2f72bea5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 09:55:57,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 09:55:57,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 09:55:57,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-08 09:55:57,571 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:57,572 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:57,572 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:57,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:57,577 INFO L85 PathProgramCache]: Analyzing trace with hash -672607058, now seen corresponding path program 1 times [2025-03-08 09:55:57,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 09:55:57,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978582588] [2025-03-08 09:55:57,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:57,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 09:55:57,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 09:55:57,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 09:55:57,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-08 09:55:57,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 09:55:57,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 09:55:57,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:57,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:57,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 09:55:57,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 09:55:57,756 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2025-03-08 09:55:57,756 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 09:55:57,757 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 09:55:57,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978582588] [2025-03-08 09:55:57,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978582588] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:57,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:55:57,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 09:55:57,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827547964] [2025-03-08 09:55:57,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:57,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 09:55:57,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 09:55:57,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 09:55:57,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 09:55:57,777 INFO L87 Difference]: Start difference. First operand has 55 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-08 09:55:57,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:57,791 INFO L93 Difference]: Finished difference Result 104 states and 175 transitions. [2025-03-08 09:55:57,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 09:55:57,792 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 105 [2025-03-08 09:55:57,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:57,796 INFO L225 Difference]: With dead ends: 104 [2025-03-08 09:55:57,796 INFO L226 Difference]: Without dead ends: 52 [2025-03-08 09:55:57,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 09:55:57,800 INFO L435 NwaCegarLoop]: 77 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, 77 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 09:55:57,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 09:55:57,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-03-08 09:55:57,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2025-03-08 09:55:57,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 09:55:57,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2025-03-08 09:55:57,830 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 105 [2025-03-08 09:55:57,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:55:57,831 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2025-03-08 09:55:57,831 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-08 09:55:57,831 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2025-03-08 09:55:57,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-08 09:55:57,834 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:57,835 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:57,841 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 [2025-03-08 09:55:58,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 09:55:58,037 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:58,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:58,037 INFO L85 PathProgramCache]: Analyzing trace with hash -95396660, now seen corresponding path program 1 times [2025-03-08 09:55:58,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 09:55:58,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671108215] [2025-03-08 09:55:58,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:58,039 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 09:55:58,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 09:55:58,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 09:55:58,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-08 09:55:58,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 09:55:58,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 09:55:58,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:58,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:58,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 09:55:58,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 09:55:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2025-03-08 09:55:58,241 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 09:55:58,241 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 09:55:58,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671108215] [2025-03-08 09:55:58,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671108215] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:58,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:55:58,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 09:55:58,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720982143] [2025-03-08 09:55:58,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:58,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 09:55:58,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 09:55:58,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 09:55:58,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 09:55:58,245 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:58,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:58,516 INFO L93 Difference]: Finished difference Result 106 states and 152 transitions. [2025-03-08 09:55:58,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 09:55:58,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2025-03-08 09:55:58,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:58,519 INFO L225 Difference]: With dead ends: 106 [2025-03-08 09:55:58,520 INFO L226 Difference]: Without dead ends: 57 [2025-03-08 09:55:58,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2025-03-08 09:55:58,521 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 73 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 09:55:58,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 98 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 09:55:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2025-03-08 09:55:58,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2025-03-08 09:55:58,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 34 states have internal predecessors, (38), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 09:55:58,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 70 transitions. [2025-03-08 09:55:58,537 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 70 transitions. Word has length 105 [2025-03-08 09:55:58,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:55:58,538 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 70 transitions. [2025-03-08 09:55:58,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:58,539 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2025-03-08 09:55:58,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-08 09:55:58,540 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:58,540 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:58,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-03-08 09:55:58,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 09:55:58,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:58,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:58,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1902851123, now seen corresponding path program 1 times [2025-03-08 09:55:58,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 09:55:58,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040621927] [2025-03-08 09:55:58,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:58,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 09:55:58,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 09:55:58,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 09:55:58,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-03-08 09:55:58,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 09:55:58,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 09:55:58,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:58,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:58,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 09:55:58,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 09:55:59,030 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-08 09:55:59,030 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 09:55:59,030 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 09:55:59,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040621927] [2025-03-08 09:55:59,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040621927] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:59,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:55:59,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 09:55:59,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601450542] [2025-03-08 09:55:59,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:59,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 09:55:59,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 09:55:59,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 09:55:59,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 09:55:59,032 INFO L87 Difference]: Start difference. First operand 53 states and 70 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:59,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:59,146 INFO L93 Difference]: Finished difference Result 140 states and 189 transitions. [2025-03-08 09:55:59,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 09:55:59,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2025-03-08 09:55:59,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:59,149 INFO L225 Difference]: With dead ends: 140 [2025-03-08 09:55:59,149 INFO L226 Difference]: Without dead ends: 90 [2025-03-08 09:55:59,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 09:55:59,150 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 60 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 09:55:59,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 127 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 09:55:59,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2025-03-08 09:55:59,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 53. [2025-03-08 09:55:59,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-08 09:55:59,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2025-03-08 09:55:59,168 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 105 [2025-03-08 09:55:59,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:55:59,170 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2025-03-08 09:55:59,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:59,171 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2025-03-08 09:55:59,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-08 09:55:59,171 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:55:59,172 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:55:59,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-03-08 09:55:59,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 09:55:59,372 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:55:59,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:55:59,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2036288014, now seen corresponding path program 1 times [2025-03-08 09:55:59,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 09:55:59,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056428682] [2025-03-08 09:55:59,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:55:59,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 09:55:59,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 09:55:59,378 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 09:55:59,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-03-08 09:55:59,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-08 09:55:59,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-08 09:55:59,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:55:59,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:55:59,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 09:55:59,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 09:55:59,892 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-08 09:55:59,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 09:55:59,892 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 09:55:59,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056428682] [2025-03-08 09:55:59,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056428682] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 09:55:59,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 09:55:59,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 09:55:59,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098608682] [2025-03-08 09:55:59,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 09:55:59,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 09:55:59,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 09:55:59,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 09:55:59,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 09:55:59,894 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:55:59,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 09:55:59,995 INFO L93 Difference]: Finished difference Result 154 states and 202 transitions. [2025-03-08 09:55:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 09:55:59,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2025-03-08 09:55:59,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 09:55:59,997 INFO L225 Difference]: With dead ends: 154 [2025-03-08 09:55:59,997 INFO L226 Difference]: Without dead ends: 104 [2025-03-08 09:55:59,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 09:56:00,000 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 34 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 09:56:00,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 174 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 09:56:00,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-03-08 09:56:00,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2025-03-08 09:56:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.0677966101694916) internal successors, (63), 59 states have internal predecessors, (63), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-08 09:56:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2025-03-08 09:56:00,032 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 127 transitions. Word has length 106 [2025-03-08 09:56:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 09:56:00,032 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 127 transitions. [2025-03-08 09:56:00,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-03-08 09:56:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 127 transitions. [2025-03-08 09:56:00,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-08 09:56:00,033 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 09:56:00,033 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 09:56:00,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2025-03-08 09:56:00,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 09:56:00,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 09:56:00,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 09:56:00,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1446482386, now seen corresponding path program 1 times [2025-03-08 09:56:00,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 09:56:00,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920391777] [2025-03-08 09:56:00,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 09:56:00,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 09:56:00,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 09:56:00,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 09:56:00,239 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 (6)] Waiting until timeout for monitored process [2025-03-08 09:56:00,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 09:56:00,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 09:56:00,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 09:56:00,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 09:56:00,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-08 09:56:00,573 INFO L279 TraceCheckSpWp]: Computing forward predicates...