./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_5.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 3fd336a0cf083f3890b8c868f630a501a442e53f25a6db757ae043988dd949bf --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 23:34:04,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 23:34:04,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 23:34:04,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 23:34:04,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 23:34:04,983 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 23:34:04,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 23:34:04,984 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 23:34:04,984 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 23:34:04,985 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 23:34:04,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 23:34:04,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 23:34:04,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 23:34:04,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 23:34:04,987 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 23:34:04,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 23:34:04,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 23:34:04,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 23:34:04,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 23:34:04,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 23:34:04,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 23:34:04,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 23:34:04,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 23:34:04,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 23:34:04,991 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 23:34:04,991 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 23:34:04,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 23:34:04,992 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 23:34:04,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 23:34:04,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 23:34:04,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 23:34:04,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 23:34:04,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:34:04,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 23:34:04,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 23:34:04,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 23:34:04,995 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 23:34:04,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 23:34:04,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 23:34:04,996 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 23:34:04,997 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 23:34:04,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 23:34:04,997 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fd336a0cf083f3890b8c868f630a501a442e53f25a6db757ae043988dd949bf [2024-11-19 23:34:05,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 23:34:05,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 23:34:05,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 23:34:05,281 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 23:34:05,282 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 23:34:05,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_5.i [2024-11-19 23:34:06,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 23:34:06,897 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 23:34:06,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_5.i [2024-11-19 23:34:06,907 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3881c3b82/d21d1acd24484d1bb2568bcfeb86e168/FLAG69ae062ef [2024-11-19 23:34:06,921 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3881c3b82/d21d1acd24484d1bb2568bcfeb86e168 [2024-11-19 23:34:06,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 23:34:06,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 23:34:06,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 23:34:06,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 23:34:06,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 23:34:06,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:34:06" (1/1) ... [2024-11-19 23:34:06,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c6bf37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:06, skipping insertion in model container [2024-11-19 23:34:06,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:34:06" (1/1) ... [2024-11-19 23:34:06,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 23:34:07,149 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/combinations/gcd_1+newton_1_5.i[1226,1239] [2024-11-19 23:34:07,171 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/combinations/gcd_1+newton_1_5.i[2786,2799] [2024-11-19 23:34:07,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:34:07,180 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 23:34:07,190 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/combinations/gcd_1+newton_1_5.i[1226,1239] [2024-11-19 23:34:07,199 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/combinations/gcd_1+newton_1_5.i[2786,2799] [2024-11-19 23:34:07,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:34:07,220 INFO L204 MainTranslator]: Completed translation [2024-11-19 23:34:07,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07 WrapperNode [2024-11-19 23:34:07,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 23:34:07,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 23:34:07,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 23:34:07,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 23:34:07,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,279 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 87 [2024-11-19 23:34:07,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 23:34:07,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 23:34:07,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 23:34:07,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 23:34:07,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,296 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,315 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-19 23:34:07,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,321 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 23:34:07,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 23:34:07,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 23:34:07,336 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 23:34:07,337 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (1/1) ... [2024-11-19 23:34:07,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:34:07,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:34:07,370 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) [2024-11-19 23:34:07,372 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 [2024-11-19 23:34:07,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 23:34:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 23:34:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 23:34:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 23:34:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 23:34:07,477 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 23:34:07,479 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 23:34:07,634 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-19 23:34:07,634 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 23:34:07,648 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 23:34:07,648 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 23:34:07,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:34:07 BoogieIcfgContainer [2024-11-19 23:34:07,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 23:34:07,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 23:34:07,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 23:34:07,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 23:34:07,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:34:06" (1/3) ... [2024-11-19 23:34:07,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3effc5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:34:07, skipping insertion in model container [2024-11-19 23:34:07,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:07" (2/3) ... [2024-11-19 23:34:07,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3effc5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:34:07, skipping insertion in model container [2024-11-19 23:34:07,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:34:07" (3/3) ... [2024-11-19 23:34:07,657 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_5.i [2024-11-19 23:34:07,670 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 23:34:07,670 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 23:34:07,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 23:34:07,733 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;@3f51bc5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 23:34:07,733 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 23:34:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:34:07,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-19 23:34:07,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:34:07,743 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:34:07,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:34:07,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:34:07,748 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2024-11-19 23:34:07,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:34:07,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113781483] [2024-11-19 23:34:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:34:07,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:34:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:34:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:34:07,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:34:07,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113781483] [2024-11-19 23:34:07,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113781483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:34:07,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:34:07,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 23:34:07,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424715107] [2024-11-19 23:34:07,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:34:07,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 23:34:07,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:34:07,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 23:34:07,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 23:34:07,923 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:34:07,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:34:07,938 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2024-11-19 23:34:07,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 23:34:07,941 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-19 23:34:07,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:34:07,948 INFO L225 Difference]: With dead ends: 46 [2024-11-19 23:34:07,948 INFO L226 Difference]: Without dead ends: 19 [2024-11-19 23:34:07,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 23:34:07,953 INFO L432 NwaCegarLoop]: 31 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, 31 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 [2024-11-19 23:34:07,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:34:07,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-19 23:34:07,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-19 23:34:07,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:34:07,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-19 23:34:07,980 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2024-11-19 23:34:07,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:34:07,981 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-19 23:34:07,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:34:07,981 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-19 23:34:07,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-19 23:34:07,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:34:07,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:34:07,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 23:34:07,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:34:07,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:34:07,984 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2024-11-19 23:34:07,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:34:07,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264500639] [2024-11-19 23:34:07,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:34:07,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:34:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 23:34:08,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 23:34:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 23:34:08,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 23:34:08,052 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 23:34:08,054 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-19 23:34:08,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-19 23:34:08,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 23:34:08,061 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 23:34:08,072 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 23:34:08,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:34:08 BoogieIcfgContainer [2024-11-19 23:34:08,075 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 23:34:08,076 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 23:34:08,076 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 23:34:08,076 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 23:34:08,077 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:34:07" (3/4) ... [2024-11-19 23:34:08,079 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 23:34:08,080 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 23:34:08,081 INFO L158 Benchmark]: Toolchain (without parser) took 1155.89ms. Allocated memory is still 169.9MB. Free memory was 114.9MB in the beginning and 58.3MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-19 23:34:08,081 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 169.9MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 23:34:08,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.76ms. Allocated memory is still 169.9MB. Free memory was 114.9MB in the beginning and 101.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 23:34:08,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.33ms. Allocated memory is still 169.9MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 23:34:08,083 INFO L158 Benchmark]: Boogie Preprocessor took 51.36ms. Allocated memory is still 169.9MB. Free memory was 98.9MB in the beginning and 96.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 23:34:08,083 INFO L158 Benchmark]: RCFGBuilder took 313.22ms. Allocated memory is still 169.9MB. Free memory was 96.8MB in the beginning and 83.5MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-19 23:34:08,084 INFO L158 Benchmark]: TraceAbstraction took 424.16ms. Allocated memory is still 169.9MB. Free memory was 82.8MB in the beginning and 59.0MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-19 23:34:08,084 INFO L158 Benchmark]: Witness Printer took 4.40ms. Allocated memory is still 169.9MB. Free memory was 59.0MB in the beginning and 58.3MB in the end (delta: 665.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 23:34:08,087 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 169.9MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.76ms. Allocated memory is still 169.9MB. Free memory was 114.9MB in the beginning and 101.0MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.33ms. Allocated memory is still 169.9MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.36ms. Allocated memory is still 169.9MB. Free memory was 98.9MB in the beginning and 96.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.22ms. Allocated memory is still 169.9MB. Free memory was 96.8MB in the beginning and 83.5MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 424.16ms. Allocated memory is still 169.9MB. Free memory was 82.8MB in the beginning and 59.0MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.40ms. Allocated memory is still 169.9MB. Free memory was 59.0MB in the beginning and 58.3MB in the end (delta: 665.7kB). Peak memory consumption was 2.1MB. 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-19 23:34:08,117 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/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_5.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 3fd336a0cf083f3890b8c868f630a501a442e53f25a6db757ae043988dd949bf --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 23:34:10,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 23:34:10,530 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-19 23:34:10,535 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 23:34:10,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 23:34:10,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 23:34:10,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 23:34:10,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 23:34:10,575 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 23:34:10,575 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 23:34:10,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 23:34:10,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 23:34:10,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 23:34:10,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 23:34:10,578 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 23:34:10,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 23:34:10,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 23:34:10,579 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 23:34:10,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 23:34:10,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 23:34:10,580 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 23:34:10,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 23:34:10,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 23:34:10,581 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 23:34:10,581 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-19 23:34:10,582 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 23:34:10,582 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-19 23:34:10,582 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 23:34:10,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 23:34:10,583 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 23:34:10,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 23:34:10,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 23:34:10,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 23:34:10,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 23:34:10,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:34:10,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 23:34:10,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 23:34:10,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 23:34:10,586 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-19 23:34:10,586 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-19 23:34:10,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 23:34:10,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 23:34:10,587 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 23:34:10,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 23:34:10,589 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fd336a0cf083f3890b8c868f630a501a442e53f25a6db757ae043988dd949bf [2024-11-19 23:34:10,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 23:34:10,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 23:34:10,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 23:34:10,951 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 23:34:10,952 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 23:34:10,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_5.i [2024-11-19 23:34:12,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 23:34:12,781 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 23:34:12,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_5.i [2024-11-19 23:34:12,803 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5cfd1f00/96628ed8f0a144c5bd4f121fc103124b/FLAG7d3a90038 [2024-11-19 23:34:12,820 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5cfd1f00/96628ed8f0a144c5bd4f121fc103124b [2024-11-19 23:34:12,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 23:34:12,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 23:34:12,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 23:34:12,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 23:34:12,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 23:34:12,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:34:12" (1/1) ... [2024-11-19 23:34:12,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e029d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:12, skipping insertion in model container [2024-11-19 23:34:12,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:34:12" (1/1) ... [2024-11-19 23:34:12,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 23:34:13,053 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/combinations/gcd_1+newton_1_5.i[1226,1239] [2024-11-19 23:34:13,088 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/combinations/gcd_1+newton_1_5.i[2786,2799] [2024-11-19 23:34:13,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:34:13,105 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 23:34:13,119 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/combinations/gcd_1+newton_1_5.i[1226,1239] [2024-11-19 23:34:13,138 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/combinations/gcd_1+newton_1_5.i[2786,2799] [2024-11-19 23:34:13,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:34:13,161 INFO L204 MainTranslator]: Completed translation [2024-11-19 23:34:13,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13 WrapperNode [2024-11-19 23:34:13,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 23:34:13,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 23:34:13,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 23:34:13,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 23:34:13,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,214 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 82 [2024-11-19 23:34:13,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 23:34:13,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 23:34:13,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 23:34:13,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 23:34:13,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,249 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-19 23:34:13,253 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 23:34:13,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 23:34:13,283 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 23:34:13,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 23:34:13,284 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (1/1) ... [2024-11-19 23:34:13,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:34:13,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:34:13,318 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) [2024-11-19 23:34:13,330 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 [2024-11-19 23:34:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 23:34:13,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-19 23:34:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-19 23:34:13,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 23:34:13,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 23:34:13,435 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 23:34:13,437 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 23:34:23,680 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-19 23:34:23,680 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 23:34:23,694 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 23:34:23,698 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 23:34:23,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:34:23 BoogieIcfgContainer [2024-11-19 23:34:23,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 23:34:23,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 23:34:23,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 23:34:23,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 23:34:23,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:34:12" (1/3) ... [2024-11-19 23:34:23,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d550e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:34:23, skipping insertion in model container [2024-11-19 23:34:23,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:34:13" (2/3) ... [2024-11-19 23:34:23,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d550e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:34:23, skipping insertion in model container [2024-11-19 23:34:23,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:34:23" (3/3) ... [2024-11-19 23:34:23,711 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_5.i [2024-11-19 23:34:23,727 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 23:34:23,727 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 23:34:23,788 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 23:34:23,797 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;@428c08ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 23:34:23,801 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 23:34:23,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:34:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-19 23:34:23,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:34:23,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:34:23,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:34:23,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:34:23,822 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2024-11-19 23:34:23,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 23:34:23,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46828336] [2024-11-19 23:34:23,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:34:23,838 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 [2024-11-19 23:34:23,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 23:34:23,842 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) [2024-11-19 23:34:23,843 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 [2024-11-19 23:34:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:34:24,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 23:34:24,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:34:24,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:34:24,800 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 23:34:24,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 23:34:24,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46828336] [2024-11-19 23:34:24,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46828336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:34:24,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:34:24,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 23:34:24,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009115813] [2024-11-19 23:34:24,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:34:24,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 23:34:24,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 23:34:24,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 23:34:24,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 23:34:24,841 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:34:24,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:34:24,855 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2024-11-19 23:34:24,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 23:34:24,857 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-19 23:34:24,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:34:24,862 INFO L225 Difference]: With dead ends: 46 [2024-11-19 23:34:24,862 INFO L226 Difference]: Without dead ends: 19 [2024-11-19 23:34:24,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 23:34:24,868 INFO L432 NwaCegarLoop]: 31 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, 31 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 [2024-11-19 23:34:24,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:34:24,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-19 23:34:24,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-19 23:34:24,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:34:24,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-19 23:34:24,894 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2024-11-19 23:34:24,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:34:24,894 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-19 23:34:24,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:34:24,895 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-19 23:34:24,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-19 23:34:24,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:34:24,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:34:24,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-19 23:34:25,096 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 [2024-11-19 23:34:25,097 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:34:25,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:34:25,098 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2024-11-19 23:34:25,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 23:34:25,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023716234] [2024-11-19 23:34:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:34:25,098 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 [2024-11-19 23:34:25,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 23:34:25,102 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) [2024-11-19 23:34:25,121 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