./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c -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 a053a782decb11d2f285c3ec51c61736c730fd1e4c1a5a335f84feb7be146afe --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 19:47:32,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 19:47:32,829 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 19:47:32,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 19:47:32,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 19:47:32,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 19:47:32,868 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 19:47:32,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 19:47:32,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 19:47:32,869 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 19:47:32,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 19:47:32,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 19:47:32,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 19:47:32,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 19:47:32,871 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 19:47:32,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 19:47:32,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 19:47:32,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 19:47:32,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 19:47:32,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 19:47:32,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 19:47:32,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 19:47:32,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 19:47:32,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 19:47:32,875 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 19:47:32,875 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 19:47:32,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 19:47:32,876 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 19:47:32,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 19:47:32,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 19:47:32,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 19:47:32,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 19:47:32,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 19:47:32,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 19:47:32,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 19:47:32,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 19:47:32,879 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 19:47:32,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 19:47:32,879 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 19:47:32,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 19:47:32,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 19:47:32,880 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 19:47:32,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a053a782decb11d2f285c3ec51c61736c730fd1e4c1a5a335f84feb7be146afe [2024-11-11 19:47:33,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 19:47:33,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 19:47:33,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 19:47:33,229 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 19:47:33,229 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 19:47:33,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-11-11 19:47:34,646 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 19:47:34,823 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 19:47:34,827 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-11-11 19:47:34,834 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fce28a6d/aafc38e36f9f40d3aebfadb564dae2ed/FLAG5f552810b [2024-11-11 19:47:34,848 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fce28a6d/aafc38e36f9f40d3aebfadb564dae2ed [2024-11-11 19:47:34,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 19:47:34,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 19:47:34,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 19:47:34,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 19:47:34,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 19:47:34,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 07:47:34" (1/1) ... [2024-11-11 19:47:34,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5091e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:34, skipping insertion in model container [2024-11-11 19:47:34,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 07:47:34" (1/1) ... [2024-11-11 19:47:34,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 19:47:35,068 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/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-11-11 19:47:35,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 19:47:35,090 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 19:47:35,109 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/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-11-11 19:47:35,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 19:47:35,134 INFO L204 MainTranslator]: Completed translation [2024-11-11 19:47:35,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35 WrapperNode [2024-11-11 19:47:35,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 19:47:35,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 19:47:35,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 19:47:35,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 19:47:35,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,166 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2024-11-11 19:47:35,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 19:47:35,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 19:47:35,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 19:47:35,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 19:47:35,178 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,180 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,197 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]. [2024-11-11 19:47:35,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 19:47:35,213 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 19:47:35,213 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 19:47:35,213 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 19:47:35,214 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (1/1) ... [2024-11-11 19:47:35,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 19:47:35,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 19:47:35,256 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) [2024-11-11 19:47:35,258 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 [2024-11-11 19:47:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 19:47:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 19:47:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 19:47:35,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 19:47:35,375 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 19:47:35,377 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 19:47:35,542 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-11 19:47:35,542 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 19:47:35,560 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 19:47:35,560 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-11 19:47:35,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:47:35 BoogieIcfgContainer [2024-11-11 19:47:35,562 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 19:47:35,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 19:47:35,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 19:47:35,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 19:47:35,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 07:47:34" (1/3) ... [2024-11-11 19:47:35,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ab953d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 07:47:35, skipping insertion in model container [2024-11-11 19:47:35,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:47:35" (2/3) ... [2024-11-11 19:47:35,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ab953d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 07:47:35, skipping insertion in model container [2024-11-11 19:47:35,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:47:35" (3/3) ... [2024-11-11 19:47:35,571 INFO L112 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-11-11 19:47:35,583 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 19:47:35,584 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 19:47:35,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 19:47:35,637 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;@19940485, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 19:47:35,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 19:47:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 15 states have internal predecessors, (24), 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) [2024-11-11 19:47:35,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-11 19:47:35,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 19:47:35,648 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 19:47:35,648 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 19:47:35,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 19:47:35,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1390787819, now seen corresponding path program 1 times [2024-11-11 19:47:35,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 19:47:35,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099546251] [2024-11-11 19:47:35,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:47:35,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 19:47:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-11 19:47:35,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090297574] [2024-11-11 19:47:35,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:47:35,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 19:47:35,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 19:47:35,813 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) [2024-11-11 19:47:35,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 19:47:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:47:35,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-11 19:47:35,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 19:47:36,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 19:47:36,204 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 19:47:36,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 19:47:36,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099546251] [2024-11-11 19:47:36,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-11 19:47:36,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090297574] [2024-11-11 19:47:36,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090297574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 19:47:36,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 19:47:36,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-11 19:47:36,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339520302] [2024-11-11 19:47:36,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 19:47:36,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 19:47:36,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 19:47:36,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 19:47:36,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-11 19:47:36,241 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 15 states have internal predecessors, (24), 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 10 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2024-11-11 19:47:36,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 19:47:36,359 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2024-11-11 19:47:36,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 19:47:36,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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 12 [2024-11-11 19:47:36,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 19:47:36,368 INFO L225 Difference]: With dead ends: 23 [2024-11-11 19:47:36,369 INFO L226 Difference]: Without dead ends: 14 [2024-11-11 19:47:36,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-11 19:47:36,377 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 19:47:36,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 19:47:36,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-11 19:47:36,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-11 19:47:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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) [2024-11-11 19:47:36,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-11-11 19:47:36,402 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2024-11-11 19:47:36,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 19:47:36,402 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-11-11 19:47:36,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2024-11-11 19:47:36,403 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-11-11 19:47:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-11 19:47:36,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 19:47:36,403 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 19:47:36,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 19:47:36,604 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 [2024-11-11 19:47:36,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 19:47:36,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 19:47:36,605 INFO L85 PathProgramCache]: Analyzing trace with hash -164811888, now seen corresponding path program 1 times [2024-11-11 19:47:36,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 19:47:36,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308062780] [2024-11-11 19:47:36,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:47:36,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 19:47:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-11 19:47:36,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1402144237] [2024-11-11 19:47:36,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 19:47:36,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 19:47:36,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 19:47:36,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 19:47:36,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 19:47:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 19:47:36,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-11 19:47:36,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 19:47:36,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 19:47:36,874 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 19:47:37,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 19:47:37,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 19:47:37,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308062780] [2024-11-11 19:47:37,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-11 19:47:37,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402144237] [2024-11-11 19:47:37,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402144237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 19:47:37,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-11 19:47:37,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2024-11-11 19:47:37,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185589186] [2024-11-11 19:47:37,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-11 19:47:37,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 19:47:37,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 19:47:37,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 19:47:37,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-11 19:47:37,010 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 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) [2024-11-11 19:47:37,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 19:47:37,220 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2024-11-11 19:47:37,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 19:47:37,221 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 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) Word has length 13 [2024-11-11 19:47:37,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 19:47:37,222 INFO L225 Difference]: With dead ends: 15 [2024-11-11 19:47:37,222 INFO L226 Difference]: Without dead ends: 0 [2024-11-11 19:47:37,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2024-11-11 19:47:37,224 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 19:47:37,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 19:47:37,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-11 19:47:37,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-11 19:47:37,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-11 19:47:37,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-11 19:47:37,226 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-11-11 19:47:37,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 19:47:37,226 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-11 19:47:37,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 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) [2024-11-11 19:47:37,227 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-11 19:47:37,227 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-11 19:47:37,231 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 19:47:37,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 19:47:37,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-11 19:47:37,436 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-11 19:47:37,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-11 19:47:37,444 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-11 19:47:37,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 07:47:37 BoogieIcfgContainer [2024-11-11 19:47:37,450 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-11 19:47:37,450 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-11 19:47:37,450 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-11 19:47:37,450 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-11 19:47:37,451 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:47:35" (3/4) ... [2024-11-11 19:47:37,454 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-11 19:47:37,461 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-11 19:47:37,462 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-11 19:47:37,462 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-11 19:47:37,462 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-11 19:47:37,549 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-11 19:47:37,550 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-11 19:47:37,550 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-11 19:47:37,551 INFO L158 Benchmark]: Toolchain (without parser) took 2698.95ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 97.3MB in the beginning and 124.2MB in the end (delta: -26.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2024-11-11 19:47:37,551 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-11 19:47:37,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.10ms. Allocated memory is still 151.0MB. Free memory was 97.3MB in the beginning and 83.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-11 19:47:37,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.79ms. Allocated memory is still 151.0MB. Free memory was 83.7MB in the beginning and 82.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 19:47:37,553 INFO L158 Benchmark]: Boogie Preprocessor took 44.35ms. Allocated memory is still 151.0MB. Free memory was 82.1MB in the beginning and 80.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-11 19:47:37,553 INFO L158 Benchmark]: RCFGBuilder took 349.32ms. Allocated memory is still 151.0MB. Free memory was 80.5MB in the beginning and 117.2MB in the end (delta: -36.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-11 19:47:37,553 INFO L158 Benchmark]: TraceAbstraction took 1885.40ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 116.6MB in the beginning and 129.4MB in the end (delta: -12.9MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-11-11 19:47:37,553 INFO L158 Benchmark]: Witness Printer took 99.91ms. Allocated memory is still 182.5MB. Free memory was 129.4MB in the beginning and 124.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-11 19:47:37,559 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 96.5MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.10ms. Allocated memory is still 151.0MB. Free memory was 97.3MB in the beginning and 83.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.79ms. Allocated memory is still 151.0MB. Free memory was 83.7MB in the beginning and 82.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.35ms. Allocated memory is still 151.0MB. Free memory was 82.1MB in the beginning and 80.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.32ms. Allocated memory is still 151.0MB. Free memory was 80.5MB in the beginning and 117.2MB in the end (delta: -36.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1885.40ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 116.6MB in the beginning and 129.4MB in the end (delta: -12.9MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * Witness Printer took 99.91ms. Allocated memory is still 182.5MB. Free memory was 129.4MB in the beginning and 124.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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 - PositiveResult [Line: 69]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 12 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 21, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 1 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-11 19:47:37,589 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 Writing output log to file Ultimate.log Result: TRUE