./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/hardware-verification-bv/btor2c-lazyMod.cal13.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 6ca69a10136fa629a9557db85884b38841007f701683e546ad8a30913ec5665f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:48:43,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:48:43,727 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 16:48:43,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:48:43,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:48:43,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:48:43,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:48:43,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:48:43,759 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:48:43,759 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:48:43,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:48:43,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:48:43,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:48:43,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:48:43,761 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:48:43,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:48:43,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:48:43,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:48:43,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:48:43,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:48:43,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:48:43,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:48:43,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:48:43,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:48:43,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:48:43,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:48:43,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:48:43,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:48:43,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:48:43,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:48:43,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:48:43,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:48:43,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:48:43,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:48:43,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:48:43,770 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:48:43,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:48:43,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:48:43,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:48:43,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ca69a10136fa629a9557db85884b38841007f701683e546ad8a30913ec5665f [2024-11-18 16:48:43,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:48:43,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:48:43,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:48:44,000 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:48:44,001 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:48:44,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal13.c [2024-11-18 16:48:45,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:48:45,377 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:48:45,377 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal13.c [2024-11-18 16:48:45,388 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8482c36c/0c6428c1e109458ba723f2a3b2d17105/FLAGf5add4810 [2024-11-18 16:48:45,405 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8482c36c/0c6428c1e109458ba723f2a3b2d17105 [2024-11-18 16:48:45,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:48:45,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:48:45,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:48:45,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:48:45,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:48:45,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa9b697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45, skipping insertion in model container [2024-11-18 16:48:45,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:48:45,627 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/hardware-verification-bv/btor2c-lazyMod.cal13.c[1245,1258] [2024-11-18 16:48:45,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:48:45,677 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:48:45,686 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/hardware-verification-bv/btor2c-lazyMod.cal13.c[1245,1258] [2024-11-18 16:48:45,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:48:45,746 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:48:45,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45 WrapperNode [2024-11-18 16:48:45,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:48:45,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:48:45,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:48:45,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:48:45,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,812 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 304 [2024-11-18 16:48:45,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:48:45,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:48:45,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:48:45,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:48:45,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,831 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,855 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-18 16:48:45,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:48:45,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:48:45,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:48:45,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:48:45,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (1/1) ... [2024-11-18 16:48:45,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:48:45,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:48:45,941 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) [2024-11-18 16:48:45,944 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 [2024-11-18 16:48:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:48:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:48:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 16:48:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:48:45,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:48:46,069 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:48:46,070 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:48:46,472 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2024-11-18 16:48:46,472 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:48:46,485 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:48:46,485 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 16:48:46,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:48:46 BoogieIcfgContainer [2024-11-18 16:48:46,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:48:46,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:48:46,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:48:46,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:48:46,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:48:45" (1/3) ... [2024-11-18 16:48:46,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1632b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:48:46, skipping insertion in model container [2024-11-18 16:48:46,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:45" (2/3) ... [2024-11-18 16:48:46,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1632b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:48:46, skipping insertion in model container [2024-11-18 16:48:46,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:48:46" (3/3) ... [2024-11-18 16:48:46,492 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal13.c [2024-11-18 16:48:46,505 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:48:46,505 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 16:48:46,551 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:48:46,557 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;@434a4d16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:48:46,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 16:48:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.4861111111111112) internal successors, (107), 73 states have internal predecessors, (107), 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) [2024-11-18 16:48:46,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-18 16:48:46,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:48:46,569 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:48:46,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:48:46,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:48:46,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2017394231, now seen corresponding path program 1 times [2024-11-18 16:48:46,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:48:46,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529903135] [2024-11-18 16:48:46,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:48:46,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:48:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:48:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:48:47,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:48:47,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529903135] [2024-11-18 16:48:47,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529903135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:48:47,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:48:47,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:48:47,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248704201] [2024-11-18 16:48:47,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:48:47,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:48:47,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:48:47,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:48:47,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:48:47,137 INFO L87 Difference]: Start difference. First operand has 74 states, 72 states have (on average 1.4861111111111112) internal successors, (107), 73 states have internal predecessors, (107), 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 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-18 16:48:47,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:48:47,172 INFO L93 Difference]: Finished difference Result 129 states and 189 transitions. [2024-11-18 16:48:47,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:48:47,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2024-11-18 16:48:47,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:48:47,181 INFO L225 Difference]: With dead ends: 129 [2024-11-18 16:48:47,181 INFO L226 Difference]: Without dead ends: 73 [2024-11-18 16:48:47,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:48:47,188 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:48:47,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 297 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:48:47,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-18 16:48:47,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-18 16:48:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 72 states have internal predecessors, (105), 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) [2024-11-18 16:48:47,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 105 transitions. [2024-11-18 16:48:47,224 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 105 transitions. Word has length 27 [2024-11-18 16:48:47,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:48:47,224 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 105 transitions. [2024-11-18 16:48:47,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-18 16:48:47,225 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 105 transitions. [2024-11-18 16:48:47,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 16:48:47,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:48:47,226 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:48:47,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:48:47,226 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:48:47,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:48:47,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1883592983, now seen corresponding path program 1 times [2024-11-18 16:48:47,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:48:47,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950703208] [2024-11-18 16:48:47,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:48:47,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:48:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:48:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:48:47,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:48:47,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950703208] [2024-11-18 16:48:47,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950703208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:48:47,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:48:47,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:48:47,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976856701] [2024-11-18 16:48:47,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:48:47,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:48:47,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:48:47,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:48:47,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:48:47,394 INFO L87 Difference]: Start difference. First operand 73 states and 105 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-18 16:48:47,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:48:47,423 INFO L93 Difference]: Finished difference Result 130 states and 187 transitions. [2024-11-18 16:48:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:48:47,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2024-11-18 16:48:47,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:48:47,425 INFO L225 Difference]: With dead ends: 130 [2024-11-18 16:48:47,425 INFO L226 Difference]: Without dead ends: 75 [2024-11-18 16:48:47,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:48:47,426 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:48:47,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 293 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:48:47,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-18 16:48:47,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-18 16:48:47,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.445945945945946) internal successors, (107), 74 states have internal predecessors, (107), 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) [2024-11-18 16:48:47,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 107 transitions. [2024-11-18 16:48:47,432 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 107 transitions. Word has length 28 [2024-11-18 16:48:47,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:48:47,433 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 107 transitions. [2024-11-18 16:48:47,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-18 16:48:47,433 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 107 transitions. [2024-11-18 16:48:47,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-18 16:48:47,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:48:47,436 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:48:47,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:48:47,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:48:47,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:48:47,438 INFO L85 PathProgramCache]: Analyzing trace with hash 640193872, now seen corresponding path program 1 times [2024-11-18 16:48:47,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:48:47,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909646994] [2024-11-18 16:48:47,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:48:47,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:48:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:48:47,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:48:47,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:48:47,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909646994] [2024-11-18 16:48:47,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909646994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:48:47,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:48:47,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:48:47,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10215969] [2024-11-18 16:48:47,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:48:47,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:48:47,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:48:47,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:48:47,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:48:47,726 INFO L87 Difference]: Start difference. First operand 75 states and 107 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2024-11-18 16:48:47,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:48:47,843 INFO L93 Difference]: Finished difference Result 169 states and 239 transitions. [2024-11-18 16:48:47,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:48:47,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 29 [2024-11-18 16:48:47,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:48:47,846 INFO L225 Difference]: With dead ends: 169 [2024-11-18 16:48:47,846 INFO L226 Difference]: Without dead ends: 112 [2024-11-18 16:48:47,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:48:47,847 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 191 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:48:47,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 370 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:48:47,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-18 16:48:47,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 93. [2024-11-18 16:48:47,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4456521739130435) internal successors, (133), 92 states have internal predecessors, (133), 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) [2024-11-18 16:48:47,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-11-18 16:48:47,859 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 29 [2024-11-18 16:48:47,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:48:47,860 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-11-18 16:48:47,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2024-11-18 16:48:47,860 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-11-18 16:48:47,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-18 16:48:47,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:48:47,861 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:48:47,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:48:47,861 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:48:47,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:48:47,862 INFO L85 PathProgramCache]: Analyzing trace with hash -719939504, now seen corresponding path program 1 times [2024-11-18 16:48:47,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:48:47,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118517104] [2024-11-18 16:48:47,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:48:47,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:48:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:48:48,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:48:48,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:48:48,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118517104] [2024-11-18 16:48:48,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118517104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:48:48,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:48:48,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:48:48,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988042054] [2024-11-18 16:48:48,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:48:48,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:48:48,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:48:48,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:48:48,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:48:48,073 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2024-11-18 16:48:48,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:48:48,193 INFO L93 Difference]: Finished difference Result 171 states and 241 transitions. [2024-11-18 16:48:48,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:48:48,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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 30 [2024-11-18 16:48:48,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:48:48,195 INFO L225 Difference]: With dead ends: 171 [2024-11-18 16:48:48,195 INFO L226 Difference]: Without dead ends: 114 [2024-11-18 16:48:48,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:48:48,196 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 194 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:48:48,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 542 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:48:48,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-18 16:48:48,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2024-11-18 16:48:48,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.4421052631578948) internal successors, (137), 95 states have internal predecessors, (137), 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) [2024-11-18 16:48:48,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 137 transitions. [2024-11-18 16:48:48,202 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 137 transitions. Word has length 30 [2024-11-18 16:48:48,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:48:48,204 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 137 transitions. [2024-11-18 16:48:48,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2024-11-18 16:48:48,204 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 137 transitions. [2024-11-18 16:48:48,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-18 16:48:48,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:48:48,206 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:48:48,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:48:48,206 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:48:48,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:48:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash -523941715, now seen corresponding path program 1 times [2024-11-18 16:48:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:48:48,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919303686] [2024-11-18 16:48:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:48:48,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:48:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:48:48,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:48:48,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:48:48,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919303686] [2024-11-18 16:48:48,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919303686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:48:48,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:48:48,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 16:48:48,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320685408] [2024-11-18 16:48:48,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:48:48,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 16:48:48,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:48:48,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 16:48:48,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-18 16:48:48,695 INFO L87 Difference]: Start difference. First operand 96 states and 137 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 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) [2024-11-18 16:48:48,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:48:48,870 INFO L93 Difference]: Finished difference Result 171 states and 240 transitions. [2024-11-18 16:48:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 16:48:48,871 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 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 31 [2024-11-18 16:48:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:48:48,872 INFO L225 Difference]: With dead ends: 171 [2024-11-18 16:48:48,873 INFO L226 Difference]: Without dead ends: 114 [2024-11-18 16:48:48,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-11-18 16:48:48,873 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 191 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:48:48,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 609 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:48:48,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-18 16:48:48,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 100. [2024-11-18 16:48:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.4343434343434343) internal successors, (142), 99 states have internal predecessors, (142), 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) [2024-11-18 16:48:48,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2024-11-18 16:48:48,881 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 31 [2024-11-18 16:48:48,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:48:48,881 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2024-11-18 16:48:48,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 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) [2024-11-18 16:48:48,882 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2024-11-18 16:48:48,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-18 16:48:48,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:48:48,885 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:48:48,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:48:48,885 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:48:48,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:48:48,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1792746033, now seen corresponding path program 1 times [2024-11-18 16:48:48,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:48:48,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391972328] [2024-11-18 16:48:48,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:48:48,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:48:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 16:48:48,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 16:48:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 16:48:48,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 16:48:48,955 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 16:48:48,956 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 16:48:48,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:48:48,960 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-18 16:48:48,989 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 16:48:48,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:48:48 BoogieIcfgContainer [2024-11-18 16:48:48,991 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 16:48:48,992 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 16:48:48,992 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 16:48:48,993 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 16:48:48,993 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:48:46" (3/4) ... [2024-11-18 16:48:48,995 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 16:48:48,996 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 16:48:48,996 INFO L158 Benchmark]: Toolchain (without parser) took 3586.00ms. Allocated memory was 155.2MB in the beginning and 245.4MB in the end (delta: 90.2MB). Free memory was 87.5MB in the beginning and 100.9MB in the end (delta: -13.4MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2024-11-18 16:48:48,996 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory was 111.8MB in the beginning and 111.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:48:48,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.43ms. Allocated memory is still 155.2MB. Free memory was 87.3MB in the beginning and 115.3MB in the end (delta: -28.1MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-18 16:48:48,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.18ms. Allocated memory is still 155.2MB. Free memory was 115.3MB in the beginning and 108.5MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 16:48:48,998 INFO L158 Benchmark]: Boogie Preprocessor took 93.62ms. Allocated memory is still 155.2MB. Free memory was 108.5MB in the beginning and 103.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 16:48:48,998 INFO L158 Benchmark]: RCFGBuilder took 577.61ms. Allocated memory is still 155.2MB. Free memory was 103.3MB in the beginning and 62.9MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-18 16:48:48,999 INFO L158 Benchmark]: TraceAbstraction took 2504.56ms. Allocated memory was 155.2MB in the beginning and 245.4MB in the end (delta: 90.2MB). Free memory was 62.3MB in the beginning and 100.9MB in the end (delta: -38.6MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2024-11-18 16:48:48,999 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 245.4MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:48:49,000 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 155.2MB. Free memory was 111.8MB in the beginning and 111.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.43ms. Allocated memory is still 155.2MB. Free memory was 87.3MB in the beginning and 115.3MB in the end (delta: -28.1MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.18ms. Allocated memory is still 155.2MB. Free memory was 115.3MB in the beginning and 108.5MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.62ms. Allocated memory is still 155.2MB. Free memory was 108.5MB in the beginning and 103.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 577.61ms. Allocated memory is still 155.2MB. Free memory was 103.3MB in the beginning and 62.9MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2504.56ms. Allocated memory was 155.2MB in the beginning and 245.4MB in the end (delta: 90.2MB). Free memory was 62.3MB in the beginning and 100.9MB in the end (delta: -38.6MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 245.4MB. Free memory is still 100.9MB. 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: 21]: 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 bitwiseOr at line 92, overapproximation of bitwiseAnd at line 97. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 2); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (2 - 1); [L32] const SORT_1 var_10 = 0; [L33] const SORT_5 var_14 = 0; [L34] const SORT_1 var_29 = 1; [L35] const SORT_5 var_39 = 1; [L37] SORT_1 input_2; [L38] SORT_1 input_3; [L39] SORT_1 input_4; [L40] SORT_5 input_6; [L41] SORT_1 input_7; [L42] SORT_5 input_8; [L43] SORT_5 input_9; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_5=3, var_10=0, var_14=0, var_29=1, var_39=1] [L45] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, mask_SORT_5=3, var_10=0, var_14=0, var_29=1, var_39=1] [L46] SORT_5 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L47] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_5=3, var_10=0, var_14=0, var_29=1, var_39=1] [L47] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=1, var_10=0, var_14=0, var_29=1, var_39=1] [L48] SORT_5 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L50] SORT_1 init_12_arg_1 = var_10; [L51] state_11 = init_12_arg_1 [L52] SORT_5 init_16_arg_1 = var_14; [L53] state_15 = init_16_arg_1 [L54] SORT_1 init_18_arg_1 = var_10; [L55] state_17 = init_18_arg_1 [L56] SORT_5 init_22_arg_1 = var_14; [L57] state_21 = init_22_arg_1 VAL [mask_SORT_1=1, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_14=0, var_29=1, var_39=1] [L60] input_2 = __VERIFIER_nondet_uchar() [L61] EXPR input_2 & mask_SORT_1 VAL [mask_SORT_1=1, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_14=0, var_29=1, var_39=1] [L61] input_2 = input_2 & mask_SORT_1 [L62] input_3 = __VERIFIER_nondet_uchar() [L63] EXPR input_3 & mask_SORT_1 VAL [input_2=0, mask_SORT_1=1, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_14=0, var_29=1, var_39=1] [L63] input_3 = input_3 & mask_SORT_1 [L64] input_4 = __VERIFIER_nondet_uchar() [L65] input_6 = __VERIFIER_nondet_uchar() [L66] input_7 = __VERIFIER_nondet_uchar() [L67] input_8 = __VERIFIER_nondet_uchar() [L68] input_9 = __VERIFIER_nondet_uchar() [L71] SORT_1 var_13_arg_0 = state_11; [L72] SORT_1 var_13 = ~var_13_arg_0; [L73] SORT_1 var_19_arg_0 = state_17; [L74] SORT_5 var_19_arg_1 = state_15; [L75] SORT_5 var_19_arg_2 = input_6; [L76] SORT_5 var_19 = var_19_arg_0 ? var_19_arg_1 : var_19_arg_2; [L77] SORT_5 var_20_arg_0 = var_19; [L78] SORT_1 var_20 = var_20_arg_0 >> 1; VAL [input_2=0, input_3=0, input_6=0, mask_SORT_1=1, state_11=0, state_17=0, state_21=0, var_10=0, var_13=-1, var_14=0, var_19=0, var_20=0, var_29=1, var_39=1] [L79] EXPR var_20 & mask_SORT_1 VAL [input_2=0, input_3=0, input_6=0, mask_SORT_1=1, state_11=0, state_17=0, state_21=0, var_10=0, var_13=-1, var_14=0, var_19=0, var_29=1, var_39=1] [L79] var_20 = var_20 & mask_SORT_1 [L80] SORT_1 var_23_arg_0 = state_17; [L81] SORT_5 var_23_arg_1 = state_21; [L82] SORT_5 var_23_arg_2 = input_6; [L83] SORT_5 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L84] SORT_5 var_24_arg_0 = var_23; [L85] SORT_1 var_24 = var_24_arg_0 >> 1; VAL [input_2=0, input_3=0, mask_SORT_1=1, state_11=0, var_10=0, var_13=-1, var_14=0, var_19=0, var_20=0, var_24=0, var_29=1, var_39=1] [L86] EXPR var_24 & mask_SORT_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, state_11=0, var_10=0, var_13=-1, var_14=0, var_19=0, var_20=0, var_29=1, var_39=1] [L86] var_24 = var_24 & mask_SORT_1 [L87] SORT_1 var_25_arg_0 = var_20; [L88] SORT_1 var_25_arg_1 = var_24; [L89] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L90] SORT_1 var_26_arg_0 = var_13; [L91] SORT_1 var_26_arg_1 = var_25; VAL [input_2=0, input_3=0, mask_SORT_1=1, state_11=0, var_10=0, var_14=0, var_19=0, var_20=0, var_26_arg_0=-1, var_26_arg_1=1, var_29=1, var_39=1] [L92] EXPR var_26_arg_0 | var_26_arg_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, state_11=0, var_10=0, var_14=0, var_19=0, var_20=0, var_29=1, var_39=1] [L92] SORT_1 var_26 = var_26_arg_0 | var_26_arg_1; [L93] SORT_1 var_30_arg_0 = var_26; [L94] SORT_1 var_30 = ~var_30_arg_0; [L95] SORT_1 var_31_arg_0 = var_29; [L96] SORT_1 var_31_arg_1 = var_30; VAL [input_2=0, input_3=0, mask_SORT_1=1, state_11=0, var_10=0, var_14=0, var_19=0, var_20=0, var_29=1, var_31_arg_0=1, var_31_arg_1=-1, var_39=1] [L97] EXPR var_31_arg_0 & var_31_arg_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, state_11=0, var_10=0, var_14=0, var_19=0, var_20=0, var_29=1, var_39=1] [L97] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; [L98] EXPR var_31 & mask_SORT_1 VAL [input_2=0, input_3=0, mask_SORT_1=1, state_11=0, var_10=0, var_14=0, var_19=0, var_20=0, var_29=1, var_39=1] [L98] var_31 = var_31 & mask_SORT_1 [L99] SORT_1 bad_32_arg_0 = var_31; [L100] CALL __VERIFIER_assert(!(bad_32_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 576 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 576 mSDsluCounter, 2111 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1639 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 256 IncrementalHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 472 mSDtfsCounter, 256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=5, InterpolantAutomatonStates: 31, 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, 5 MinimizatonAttempts, 51 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-18 16:48:49,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/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/hardware-verification-bv/btor2c-lazyMod.cal13.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 6ca69a10136fa629a9557db85884b38841007f701683e546ad8a30913ec5665f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:48:50,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:48:50,941 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-18 16:48:50,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:48:50,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:48:50,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:48:50,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:48:50,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:48:50,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:48:50,972 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:48:50,972 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:48:50,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:48:50,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:48:50,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:48:50,974 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:48:50,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:48:50,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:48:50,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:48:50,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:48:50,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:48:50,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:48:50,978 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 16:48:50,981 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 16:48:50,981 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:48:50,981 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 16:48:50,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:48:50,981 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:48:50,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:48:50,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:48:50,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:48:50,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:48:50,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:48:50,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:48:50,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:48:50,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:48:50,983 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 16:48:50,983 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 16:48:50,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:48:50,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:48:50,983 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:48:50,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:48:50,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ca69a10136fa629a9557db85884b38841007f701683e546ad8a30913ec5665f [2024-11-18 16:48:51,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:48:51,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:48:51,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:48:51,260 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:48:51,260 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:48:51,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal13.c [2024-11-18 16:48:52,609 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:48:52,767 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:48:52,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal13.c [2024-11-18 16:48:52,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b60f7a72c/8b668317bc16468289d4d66d9a7d1a4a/FLAGbfa1d0feb [2024-11-18 16:48:53,175 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b60f7a72c/8b668317bc16468289d4d66d9a7d1a4a [2024-11-18 16:48:53,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:48:53,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:48:53,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:48:53,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:48:53,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:48:53,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1920297d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53, skipping insertion in model container [2024-11-18 16:48:53,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,216 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:48:53,393 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/hardware-verification-bv/btor2c-lazyMod.cal13.c[1245,1258] [2024-11-18 16:48:53,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:48:53,462 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:48:53,476 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/hardware-verification-bv/btor2c-lazyMod.cal13.c[1245,1258] [2024-11-18 16:48:53,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:48:53,518 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:48:53,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53 WrapperNode [2024-11-18 16:48:53,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:48:53,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:48:53,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:48:53,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:48:53,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,559 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 176 [2024-11-18 16:48:53,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:48:53,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:48:53,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:48:53,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:48:53,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,577 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,596 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-18 16:48:53,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,605 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:48:53,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:48:53,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:48:53,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:48:53,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (1/1) ... [2024-11-18 16:48:53,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:48:53,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:48:53,645 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) [2024-11-18 16:48:53,648 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 [2024-11-18 16:48:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:48:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 16:48:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-18 16:48:53,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:48:53,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:48:53,783 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:48:53,786 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:48:54,030 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-18 16:48:54,030 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:48:54,040 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:48:54,041 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 16:48:54,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:48:54 BoogieIcfgContainer [2024-11-18 16:48:54,041 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:48:54,043 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:48:54,043 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:48:54,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:48:54,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:48:53" (1/3) ... [2024-11-18 16:48:54,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57600b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:48:54, skipping insertion in model container [2024-11-18 16:48:54,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:48:53" (2/3) ... [2024-11-18 16:48:54,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57600b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:48:54, skipping insertion in model container [2024-11-18 16:48:54,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:48:54" (3/3) ... [2024-11-18 16:48:54,050 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal13.c [2024-11-18 16:48:54,064 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:48:54,065 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 16:48:54,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:48:54,121 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;@6bf9df17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:48:54,122 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 16:48:54,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-11-18 16:48:54,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-18 16:48:54,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:48:54,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-18 16:48:54,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:48:54,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:48:54,137 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-18 16:48:54,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 16:48:54,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175982370] [2024-11-18 16:48:54,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:48:54,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 16:48:54,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 16:48:54,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 16:48:54,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-18 16:48:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:48:54,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-18 16:48:54,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:48:54,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:48:54,447 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 16:48:54,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 16:48:54,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175982370] [2024-11-18 16:48:54,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175982370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:48:54,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:48:54,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:48:54,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079498093] [2024-11-18 16:48:54,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:48:54,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:48:54,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 16:48:54,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:48:54,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:48:54,476 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-18 16:48:54,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:48:54,514 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-18 16:48:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:48:54,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2024-11-18 16:48:54,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:48:54,522 INFO L225 Difference]: With dead ends: 18 [2024-11-18 16:48:54,522 INFO L226 Difference]: Without dead ends: 10 [2024-11-18 16:48:54,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:48:54,528 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:48:54,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:48:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-18 16:48:54,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-18 16:48:54,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:48:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-18 16:48:54,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-18 16:48:54,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:48:54,550 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-18 16:48:54,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-18 16:48:54,551 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-18 16:48:54,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-18 16:48:54,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:48:54,551 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-18 16:48:54,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-18 16:48:54,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 16:48:54,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:48:54,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:48:54,753 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-18 16:48:54,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 16:48:54,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313637829] [2024-11-18 16:48:54,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:48:54,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 16:48:54,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 16:48:54,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 16:48:54,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-18 16:48:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:48:54,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-18 16:48:54,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:48:55,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:48:55,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:48:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:48:55,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 16:48:55,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313637829] [2024-11-18 16:48:55,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313637829] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:48:55,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 16:48:55,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-18 16:48:55,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208081430] [2024-11-18 16:48:55,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 16:48:55,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:48:55,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 16:48:55,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:48:55,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:48:55,673 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2024-11-18 16:48:55,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:48:55,736 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-11-18 16:48:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:48:55,736 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) Word has length 8 [2024-11-18 16:48:55,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:48:55,736 INFO L225 Difference]: With dead ends: 14 [2024-11-18 16:48:55,736 INFO L226 Difference]: Without dead ends: 12 [2024-11-18 16:48:55,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:48:55,738 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:48:55,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:48:55,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-18 16:48:55,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-18 16:48:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 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) [2024-11-18 16:48:55,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-18 16:48:55,740 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-18 16:48:55,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:48:55,740 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-18 16:48:55,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2024-11-18 16:48:55,741 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-18 16:48:55,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-18 16:48:55,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:48:55,741 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-18 16:48:55,746 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 (3)] Forceful destruction successful, exit code 0 [2024-11-18 16:48:55,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 16:48:55,943 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:48:55,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:48:55,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-18 16:48:55,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 16:48:55,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649507349] [2024-11-18 16:48:55,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 16:48:55,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 16:48:55,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 16:48:55,947 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-18 16:48:55,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-18 16:48:56,034 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 16:48:56,034 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 16:48:56,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-18 16:48:56,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 16:48:57,093 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:48:57,095 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 16:49:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:49:17,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 16:49:17,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649507349] [2024-11-18 16:49:17,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649507349] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 16:49:17,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 16:49:17,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-18 16:49:17,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469699582] [2024-11-18 16:49:17,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 16:49:17,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 16:49:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 16:49:17,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 16:49:17,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:49:17,556 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2024-11-18 16:49:17,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:49:17,660 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2024-11-18 16:49:17,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:49:17,661 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2024-11-18 16:49:17,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:49:17,662 INFO L225 Difference]: With dead ends: 12 [2024-11-18 16:49:17,662 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 16:49:17,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-18 16:49:17,664 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:49:17,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:49:17,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 16:49:17,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 16:49:17,665 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) [2024-11-18 16:49:17,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 16:49:17,665 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-18 16:49:17,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:49:17,665 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 16:49:17,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2024-11-18 16:49:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 16:49:17,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 16:49:17,669 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 16:49:17,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-18 16:49:17,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-18 16:49:17,873 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-18 16:49:17,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 16:49:17,944 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 16:49:17,953 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 16:49:17,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:49:17 BoogieIcfgContainer [2024-11-18 16:49:17,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 16:49:17,957 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 16:49:17,957 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 16:49:17,957 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 16:49:17,957 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:48:54" (3/4) ... [2024-11-18 16:49:17,959 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 16:49:17,967 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-18 16:49:17,968 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-18 16:49:17,968 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 16:49:17,968 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 16:49:17,969 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 16:49:18,060 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 16:49:18,061 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 16:49:18,061 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 16:49:18,062 INFO L158 Benchmark]: Toolchain (without parser) took 24883.26ms. Allocated memory was 77.6MB in the beginning and 790.6MB in the end (delta: 713.0MB). Free memory was 41.3MB in the beginning and 371.9MB in the end (delta: -330.6MB). Peak memory consumption was 382.0MB. Max. memory is 16.1GB. [2024-11-18 16:49:18,062 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 16:49:18,062 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.02ms. Allocated memory is still 77.6MB. Free memory was 41.0MB in the beginning and 49.0MB in the end (delta: -8.0MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-11-18 16:49:18,062 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.65ms. Allocated memory is still 77.6MB. Free memory was 49.0MB in the beginning and 46.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 16:49:18,062 INFO L158 Benchmark]: Boogie Preprocessor took 54.46ms. Allocated memory is still 77.6MB. Free memory was 46.8MB in the beginning and 44.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 16:49:18,063 INFO L158 Benchmark]: RCFGBuilder took 425.64ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 44.0MB in the beginning and 68.2MB in the end (delta: -24.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2024-11-18 16:49:18,063 INFO L158 Benchmark]: TraceAbstraction took 23912.72ms. Allocated memory was 98.6MB in the beginning and 790.6MB in the end (delta: 692.1MB). Free memory was 67.7MB in the beginning and 379.2MB in the end (delta: -311.5MB). Peak memory consumption was 380.5MB. Max. memory is 16.1GB. [2024-11-18 16:49:18,063 INFO L158 Benchmark]: Witness Printer took 104.45ms. Allocated memory is still 790.6MB. Free memory was 378.2MB in the beginning and 371.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 16:49:18,065 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.02ms. Allocated memory is still 77.6MB. Free memory was 41.0MB in the beginning and 49.0MB in the end (delta: -8.0MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.65ms. Allocated memory is still 77.6MB. Free memory was 49.0MB in the beginning and 46.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.46ms. Allocated memory is still 77.6MB. Free memory was 46.8MB in the beginning and 44.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.64ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 44.0MB in the beginning and 68.2MB in the end (delta: -24.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 23912.72ms. Allocated memory was 98.6MB in the beginning and 790.6MB in the end (delta: 692.1MB). Free memory was 67.7MB in the beginning and 379.2MB in the end (delta: -311.5MB). Peak memory consumption was 380.5MB. Max. memory is 16.1GB. * Witness Printer took 104.45ms. Allocated memory is still 790.6MB. Free memory was 378.2MB in the beginning and 371.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 21]: 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.8s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 22.5s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 12 QuantifiedInterpolants, 47130 SizeOfPredicates, 23 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 3/18 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 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: (((((((0 == state_17) && (0 == var_10)) && (1 == var_29)) && (0 == state_11)) && (1 == mask_SORT_1)) || (((((1 == state_17) && (0 == var_10)) && (1 == var_29)) && (1 == mask_SORT_1)) && (1 == state_11))) || (((((0 == state_17) && (0 == var_10)) && (1 == var_29)) && (1 == mask_SORT_1)) && (1 == state_11))) RESULT: Ultimate proved your program to be correct! [2024-11-18 16:49:18,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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