./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-benchs/addsub_double_exact.c --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 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 ../../../trunk/examples/svcomp/float-benchs/addsub_double_exact.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 f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 18:19:20,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 18:19:20,246 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 18:19:20,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 18:19:20,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 18:19:20,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 18:19:20,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 18:19:20,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 18:19:20,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 18:19:20,291 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 18:19:20,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 18:19:20,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 18:19:20,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 18:19:20,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 18:19:20,295 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 18:19:20,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 18:19:20,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 18:19:20,296 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 18:19:20,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 18:19:20,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 18:19:20,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 18:19:20,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 18:19:20,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 18:19:20,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 18:19:20,298 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 18:19:20,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 18:19:20,299 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 18:19:20,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 18:19:20,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 18:19:20,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 18:19:20,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 18:19:20,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:19:20,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 18:19:20,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 18:19:20,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 18:19:20,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 18:19:20,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 18:19:20,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 18:19:20,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 18:19:20,303 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 18:19:20,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 18:19:20,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 18:19:20,304 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 18:19:20,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 18:19:20,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 18:19:20,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 18:19:20,636 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 18:19:20,638 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 18:19:20,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_double_exact.c [2023-11-22 18:19:21,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 18:19:22,057 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 18:19:22,058 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_double_exact.c [2023-11-22 18:19:22,064 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f66e9aa8/4cc0f4a52cef49629f32e75bc02b7a6f/FLAG4b9a77b03 [2023-11-22 18:19:22,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f66e9aa8/4cc0f4a52cef49629f32e75bc02b7a6f [2023-11-22 18:19:22,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 18:19:22,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 18:19:22,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 18:19:22,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 18:19:22,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 18:19:22,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50663d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22, skipping insertion in model container [2023-11-22 18:19:22,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 18:19:22,255 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_double_exact.c[393,406] [2023-11-22 18:19:22,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:19:22,284 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 18:19:22,296 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_double_exact.c[393,406] [2023-11-22 18:19:22,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:19:22,312 INFO L206 MainTranslator]: Completed translation [2023-11-22 18:19:22,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22 WrapperNode [2023-11-22 18:19:22,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 18:19:22,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 18:19:22,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 18:19:22,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 18:19:22,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,347 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-11-22 18:19:22,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 18:19:22,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 18:19:22,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 18:19:22,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 18:19:22,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,369 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,378 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-22 18:19:22,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 18:19:22,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 18:19:22,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 18:19:22,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 18:19:22,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (1/1) ... [2023-11-22 18:19:22,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:19:22,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:19:22,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 18:19:22,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 18:19:22,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 18:19:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 18:19:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 18:19:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 18:19:22,528 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 18:19:22,530 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 18:19:22,607 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 18:19:22,628 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 18:19:22,628 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 18:19:22,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:19:22 BoogieIcfgContainer [2023-11-22 18:19:22,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 18:19:22,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 18:19:22,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 18:19:22,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 18:19:22,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:19:22" (1/3) ... [2023-11-22 18:19:22,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324474e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:19:22, skipping insertion in model container [2023-11-22 18:19:22,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:22" (2/3) ... [2023-11-22 18:19:22,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324474e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:19:22, skipping insertion in model container [2023-11-22 18:19:22,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:19:22" (3/3) ... [2023-11-22 18:19:22,658 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2023-11-22 18:19:22,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 18:19:22,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 18:19:22,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 18:19:22,736 INFO L357 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, mHoare=true, 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;@784c2303, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 18:19:22,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 18:19:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-22 18:19:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-22 18:19:22,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:22,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-22 18:19:22,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:22,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:22,752 INFO L85 PathProgramCache]: Analyzing trace with hash 46290, now seen corresponding path program 1 times [2023-11-22 18:19:22,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:19:22,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906554600] [2023-11-22 18:19:22,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:22,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:19:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-22 18:19:22,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-22 18:19:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-22 18:19:22,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-22 18:19:22,863 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-22 18:19:22,865 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-22 18:19:22,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 18:19:22,871 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-22 18:19:22,875 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-22 18:19:22,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 06:19:22 BoogieIcfgContainer [2023-11-22 18:19:22,895 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-22 18:19:22,898 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-22 18:19:22,898 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-22 18:19:22,898 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-22 18:19:22,899 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:19:22" (3/4) ... [2023-11-22 18:19:22,903 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-22 18:19:22,905 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-22 18:19:22,906 INFO L158 Benchmark]: Toolchain (without parser) took 827.44ms. Allocated memory is still 146.8MB. Free memory was 107.3MB in the beginning and 105.0MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 18:19:22,907 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 71.2MB in the beginning and 71.0MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 18:19:22,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.80ms. Allocated memory is still 146.8MB. Free memory was 106.9MB in the beginning and 96.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-22 18:19:22,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.23ms. Allocated memory is still 146.8MB. Free memory was 96.8MB in the beginning and 95.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 18:19:22,910 INFO L158 Benchmark]: Boogie Preprocessor took 28.42ms. Allocated memory is still 146.8MB. Free memory was 95.6MB in the beginning and 93.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-22 18:19:22,915 INFO L158 Benchmark]: RCFGBuilder took 243.25ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 84.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-22 18:19:22,917 INFO L158 Benchmark]: TraceAbstraction took 264.26ms. Allocated memory is still 146.8MB. Free memory was 83.8MB in the beginning and 105.4MB in the end (delta: -21.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 18:19:22,918 INFO L158 Benchmark]: Witness Printer took 7.10ms. Allocated memory is still 146.8MB. Free memory was 105.4MB in the beginning and 105.0MB in the end (delta: 399.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 18:19:22,925 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory was 71.2MB in the beginning and 71.0MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.80ms. Allocated memory is still 146.8MB. Free memory was 106.9MB in the beginning and 96.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.23ms. Allocated memory is still 146.8MB. Free memory was 96.8MB in the beginning and 95.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.42ms. Allocated memory is still 146.8MB. Free memory was 95.6MB in the beginning and 93.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 243.25ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 84.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 264.26ms. Allocated memory is still 146.8MB. Free memory was 83.8MB in the beginning and 105.4MB in the end (delta: -21.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.10ms. Allocated memory is still 146.8MB. Free memory was 105.4MB in the beginning and 105.0MB in the end (delta: 399.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6]: 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 someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 13. Possible FailurePath: [L10] double x, y, z, r; [L12] x = 1e8 [L13] y = x + 1 [L14] z = x - 1 [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 2.) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2023-11-22 18:19:22,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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 ../../../trunk/examples/svcomp/float-benchs/addsub_double_exact.c -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 f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 18:19:25,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 18:19:25,397 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-22 18:19:25,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 18:19:25,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 18:19:25,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 18:19:25,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 18:19:25,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 18:19:25,451 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 18:19:25,455 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 18:19:25,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 18:19:25,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 18:19:25,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 18:19:25,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 18:19:25,458 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 18:19:25,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 18:19:25,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 18:19:25,459 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 18:19:25,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 18:19:25,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 18:19:25,460 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 18:19:25,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 18:19:25,461 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 18:19:25,461 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-22 18:19:25,461 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-22 18:19:25,462 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-22 18:19:25,462 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 18:19:25,462 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 18:19:25,462 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 18:19:25,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 18:19:25,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 18:19:25,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 18:19:25,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 18:19:25,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:19:25,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 18:19:25,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 18:19:25,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 18:19:25,466 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-22 18:19:25,466 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-22 18:19:25,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 18:19:25,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 18:19:25,467 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 18:19:25,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 18:19:25,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 18:19:25,468 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-22 18:19:25,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 18:19:25,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 18:19:25,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 18:19:25,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 18:19:25,850 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 18:19:25,850 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 18:19:25,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_double_exact.c [2023-11-22 18:19:27,062 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 18:19:27,290 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 18:19:27,291 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_double_exact.c [2023-11-22 18:19:27,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d7becf6/c8ab86476e3342fda68285bee8a1d5f9/FLAGe480be079 [2023-11-22 18:19:27,318 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d7becf6/c8ab86476e3342fda68285bee8a1d5f9 [2023-11-22 18:19:27,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 18:19:27,322 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 18:19:27,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 18:19:27,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 18:19:27,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 18:19:27,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f21c523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27, skipping insertion in model container [2023-11-22 18:19:27,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,349 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 18:19:27,525 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_double_exact.c[393,406] [2023-11-22 18:19:27,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:19:27,557 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 18:19:27,571 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_double_exact.c[393,406] [2023-11-22 18:19:27,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:19:27,598 INFO L206 MainTranslator]: Completed translation [2023-11-22 18:19:27,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27 WrapperNode [2023-11-22 18:19:27,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 18:19:27,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 18:19:27,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 18:19:27,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 18:19:27,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,637 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2023-11-22 18:19:27,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 18:19:27,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 18:19:27,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 18:19:27,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 18:19:27,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,662 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,673 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-22 18:19:27,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 18:19:27,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 18:19:27,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 18:19:27,710 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 18:19:27,710 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (1/1) ... [2023-11-22 18:19:27,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:19:27,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:19:27,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 18:19:27,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 18:19:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 18:19:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 18:19:27,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 18:19:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-22 18:19:27,882 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 18:19:27,884 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 18:19:28,339 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 18:19:28,373 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 18:19:28,374 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 18:19:28,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:19:28 BoogieIcfgContainer [2023-11-22 18:19:28,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 18:19:28,375 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 18:19:28,375 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 18:19:28,378 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 18:19:28,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:19:27" (1/3) ... [2023-11-22 18:19:28,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779311ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:19:28, skipping insertion in model container [2023-11-22 18:19:28,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:19:27" (2/3) ... [2023-11-22 18:19:28,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779311ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:19:28, skipping insertion in model container [2023-11-22 18:19:28,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:19:28" (3/3) ... [2023-11-22 18:19:28,383 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2023-11-22 18:19:28,401 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 18:19:28,402 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 18:19:28,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 18:19:28,464 INFO L357 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, mHoare=true, 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;@22c572cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 18:19:28,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 18:19:28,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2023-11-22 18:19:28,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-22 18:19:28,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:19:28,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-22 18:19:28,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:19:28,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:19:28,483 INFO L85 PathProgramCache]: Analyzing trace with hash 46290, now seen corresponding path program 1 times [2023-11-22 18:19:28,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-22 18:19:28,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584275814] [2023-11-22 18:19:28,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:19:28,496 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 [2023-11-22 18:19:28,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-11-22 18:19:28,498 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) [2023-11-22 18:19:28,500 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 [2023-11-22 18:19:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:19:28,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-22 18:19:28,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:19:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:19:28,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 18:19:28,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-22 18:19:28,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584275814] [2023-11-22 18:19:28,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584275814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:19:28,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:19:28,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 18:19:28,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683306804] [2023-11-22 18:19:28,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:19:28,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 18:19:28,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-22 18:19:28,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 18:19:28,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:19:28,892 INFO L87 Difference]: Start difference. First operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-22 18:19:28,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:19:28,943 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2023-11-22 18:19:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 18:19:28,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-22 18:19:28,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:19:28,950 INFO L225 Difference]: With dead ends: 8 [2023-11-22 18:19:28,950 INFO L226 Difference]: Without dead ends: 0 [2023-11-22 18:19:28,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 18:19:28,955 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 18:19:28,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 18:19:28,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-22 18:19:28,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-22 18:19:28,976 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) [2023-11-22 18:19:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-22 18:19:28,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2023-11-22 18:19:28,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:19:28,978 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-22 18:19:28,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-22 18:19:28,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-22 18:19:28,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-22 18:19:28,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-22 18:19:28,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-22 18:19:29,189 WARN L477 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 [2023-11-22 18:19:29,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-22 18:19:29,194 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-22 18:19:29,196 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2023-11-22 18:19:29,197 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-22 18:19:29,197 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2023-11-22 18:19:29,198 INFO L899 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2023-11-22 18:19:29,198 INFO L899 garLoopResultBuilder]: For program point L6-3(line 6) no Hoare annotation was computed. [2023-11-22 18:19:29,201 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-22 18:19:29,209 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-22 18:19:29,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 06:19:29 BoogieIcfgContainer [2023-11-22 18:19:29,223 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-22 18:19:29,223 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-22 18:19:29,224 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-22 18:19:29,224 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-22 18:19:29,224 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:19:28" (3/4) ... [2023-11-22 18:19:29,240 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-22 18:19:29,248 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-22 18:19:29,249 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-22 18:19:29,249 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-22 18:19:29,249 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-22 18:19:29,334 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-22 18:19:29,334 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2023-11-22 18:19:29,335 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-22 18:19:29,337 INFO L158 Benchmark]: Toolchain (without parser) took 2013.62ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.1MB in the beginning and 41.8MB in the end (delta: -10.7MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-11-22 18:19:29,337 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 39.8MB. Free memory was 21.0MB in the beginning and 21.0MB in the end (delta: 35.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-22 18:19:29,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.98ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.8MB in the beginning and 46.7MB in the end (delta: -15.9MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-11-22 18:19:29,338 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.12ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 45.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-22 18:19:29,339 INFO L158 Benchmark]: Boogie Preprocessor took 68.88ms. Allocated memory is still 67.1MB. Free memory was 45.1MB in the beginning and 43.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-22 18:19:29,339 INFO L158 Benchmark]: RCFGBuilder took 665.60ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 33.1MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-22 18:19:29,339 INFO L158 Benchmark]: TraceAbstraction took 847.55ms. Allocated memory is still 67.1MB. Free memory was 32.6MB in the beginning and 27.5MB in the end (delta: 5.2MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2023-11-22 18:19:29,340 INFO L158 Benchmark]: Witness Printer took 111.24ms. Allocated memory is still 67.1MB. Free memory was 27.5MB in the beginning and 41.8MB in the end (delta: -14.3MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2023-11-22 18:19:29,344 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 39.8MB. Free memory was 21.0MB in the beginning and 21.0MB in the end (delta: 35.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.98ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.8MB in the beginning and 46.7MB in the end (delta: -15.9MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.12ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 45.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.88ms. Allocated memory is still 67.1MB. Free memory was 45.1MB in the beginning and 43.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 665.60ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 33.1MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 847.55ms. Allocated memory is still 67.1MB. Free memory was 32.6MB in the beginning and 27.5MB in the end (delta: 5.2MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Witness Printer took 111.24ms. Allocated memory is still 67.1MB. Free memory was 27.5MB in the beginning and 41.8MB in the end (delta: -14.3MB). Peak memory consumption was 2.6MB. 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: 6]: 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 6 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-22 18:19:29,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE